Fastening profiled flooring to metal beams. How to fix corrugated board to wood and metal on the roof and fence. Roofing is considered to be corrugated board in which

Roof decking is a building material made of sheet metal. It has a wave shape in cross section of symmetrical ridges (corrugations) of a trapezoidal or rounded shape, giving lightness and strength to the structure.

The low end of the profile is often referred to as the sole or bottom shelf, while the top is often referred to as the ridge or top shelf.

They are made from cold-rolled rolled metal with a thickness of 0.3-1 mm with various protective coatings.

In this article, we will look at how to properly screw onto the roof and how many roofing screws are required per 1 m2 of corrugated board.

Roofing is considered to be corrugated board in which:

thickness metal not less than 0.7 mm;
height corrugations not less than 35 mm;
available impact resistant coating solar radiation, precipitation and mechanical damage;

For the roofing of the roofs of residential buildings, HC35 and HC44 corrugated boards are used. But in those regions where a large amount of snow falls in winter, H60 or H75 is recommended - they have the side walls of the wave crest reinforced with an additional stiffener, and in the middle of the shelf there is a longitudinal chute for draining melt water.

Unlike metal tiles, corrugated board has a uniform profile along the entire length of the section and can be laid on a shed roof with a small slope angle - 6-11°.

at height profile 35 mm(HC35) and tilt angle up to 15º - up to 0.5 m, more than 15º - 1 m;
at height profile 60 mm(H60) and the angle of inclination from 8º - no more than 3 m;
at height profile 70 mm(H75) and the angle of inclination from 8º - no more than 4 m;

NOTE!

Between the crate and waterproofing there must be a ventilation gap. To create it, a counter-lattice is equipped with rafter strips or metal girders fastened along the rafters.

What kind of self-tapping screws to fasten the corrugated board to the roof?

Self-tapping screws for corrugated roofing are made of high-carbon steel and covered with high-quality galvanizing. They are equipped with a special high-strength washer and a plastic gasket (EPDM), isolating the edges of the hole from water ingress and contact with the screw head. The head of the self-tapping screw itself has a wide hex head with a metric size M8.

When installing a roof use three types of self-tapping screws with a diameter of 4.8 mm, which differ in their purpose:

for fastening in the lower shelf(sole) of the corrugated board profile to the crate 35 mm long with a thinner tip in the form of a narrowed drill and a wide thread pitch;
for fastening sheets on the top shelf of the comb 20 mm long with a wide drill-shaped tip and fine thread pitch;
for attaching ridge rails– length from 50 to 80 mm.

Roofing screws

Consumption of roofing screws per 1 m2 of corrugated board

Usually fastening is carried out in increments of 0.5 m. With sheet sizes 8 1.1 meters per square meter will have 4 self-tapping screws. But the lower edge of the first row of the roof and the overlap zone of the subsequent rows are recommended to be fixed to each lower profile shelf.

The edges of the sheets facing the gables of the roof are recommended to be fastened at intervals of 200-300 mm. Side overlaps, end and ridge strips also increase the amount of fasteners required.

On average, 8 self-tapping screws of all sizes are consumed per 1 m² of roofing corrugated board. Approximately four of them are 35 mm long, two are 20 mm long, and two more are 50 mm or more. You should not use these values as final, as many self-tapping screws are rejected during the installation process.

A more accurate calculation depends on the overall dimensions of the sheet, the angle of the roof, the thickness of the metal, as well as the number of roof slopes.

How to properly fix the corrugated board on the roof with self-tapping screws

Properly screwed self-tapping screw does not deform the pressure washer in the opposite direction, but at the same time tightly presses the gasket to the metal, leaving no gaps and crevices. The axis of rotation of the screw must be strictly perpendicular to the surface of the metal. So, let's take a closer look at how to fix the corrugated board on the roof with self-tapping screws:

How to attach to the roof sheathing? Fastening the first sheet of corrugated board to the crate begins on the left side of the bottom row. It is made with an overhang of 4 cm above the edge of the roof and an allowance of 15 cm for the next row. Fastening at the bottom of the sheet should be done "through the wave"- in each lower shelf (sole) of the profile in contact with the crate - the strength of the entire roof structure depends on this. To avoid distortion, the sheets should be carefully aligned with the eaves.
The next sheet is laid with a side overlap in one wave(for low-profile sheets - in two waves) onto the previous sheet, so that the edge passes and is fastened with short self-tapping screws in increments of 300 mm along the crest of the wave (this prevents water from flowing). It is also recommended to tighten the fasteners with a deviation of 50 mm towards the overlap in order to tightly join the sheets into the lower flange of the upper sheet.
The middle part of the sheet is fixed in a checkerboard pattern with a step through two waves, which corresponds to 500 mm.

Laying corrugated board

CAREFULLY!

Self-tapping screws must be screwed strictly at right angles to the surface. Excessive force when twisting can lead to deformation and peeling of the protective coating of the corrugated sheet. It is best to use special screwdrivers for this operation.

The second and subsequent rows are laid with an overlap of 10-20 cm on the previous one. Self-tapping screws in the overlap zone are also twisted through one wave. When determining the width of the overlap zone, it should be borne in mind that the higher the roof ridge and the larger, the less overlap is made.
The upper edge of the last row of sheets adjacent to the roof ridge is fixed through a wave.
At the second stage, end and wind strips, chimney aprons, are fixed. At the same time, fastening is carried out with self-tapping screws 50-90 mm long and with a fastening step of up to 300 mm. If the end plate consists of several additional elements (which is highly undesirable), then an overlap of 100 mm must be observed.
The final stage is the installation of the roof ridge. The skate is a profile of a special shape, having two shoulders 100-300 mm wide. Its purpose is to protect the roof from moisture ingress into the under-roof space and to give additional structural rigidity.
It is necessary to make sure that the mating edges of the roof slopes have a difference in height of no more than 2%. A larger value causes deformation under the action of wind and the weight of snow and the formation of cracks.

Sheet fixing

Start laying the skate from the end, opposite to the prevailing wind. The overlap of the additional elements is made the same as that of the end strips. Rain and melt water gets under the ridge through the gaps of the lower shelves of the corrugated board.

Therefore, special sealing gaskets are placed under the shoulders of the skate, repeating the shape of the profile. Self-tapping screws up to 80 mm long twist along the lower edge of the shoulder of the skate with an indent of 3-4 cm through the upper shelves(ridges) corrugated boarding waves into the crate.

Wind bar attachment

It is superimposed on top of the final rows of sheets and using the “through the wave” method fasten with ridge screws up to 80 mm long to the crate through the upper shelves of Vkontakte

To properly block a fence or roof, you need to know some aspects of this matter. We propose to consider how the corrugated board is fastened to metal girders and to the crate, its calculation, photo and video installation methods.

Basic information

Metal profile sheets are characterized by high elasticity. They have excellent strength and flexibility. This building material is made of galvanized steel, thanks to which it resists corrosion and other negative destructive external factors.

Photo - Corrugated roof

The key criterion for the installation of profile decking is its weight. The mass of the wall profile is slightly lighter than that of the roof profile, because it is installed vertically, so there is more stress on the fasteners. In addition, the material for covering the fence should be light enough to hold its weight in strong gusts of wind and create the necessary tension on the frame. These sheets are used to cover gates, fences, walls, erect interior partitions, and install on building facades.

While the fastening of the roofing corrugated board is carried out purely horizontally to the crate and frame. There are more requirements for metal roofing profiles than for wall profiles. It has a high bearing capacity, good rigidity, strength, despite the flexibility of steel, this material perfectly tolerates various physical shock and static loads.

Photo - Corrugated fence

Video: metal profile fastening

Fastening principles

Based on the characteristics of the building material, we can conclude that each of them has its own installation features. Step-by-step instructions on how to fix the corrugated board to the wall:

First, let's buy sheets. Depending on the installation location, you can purchase a metal wall or universal flooring. For cladding, outdoor decor, etc. it is preferable to buy wall marks, these are from 10, from 20 and others. For installation as interior partitions, to create a small utility room, you need to use sheets with higher stiffness parameters. This is universal ns 35, ns 50, etc.
Now you need to prepare the base on which the installation will be carried out. We draw your attention to the fact that wooden crates are more often used than metal ones. Here, much attention is paid to the level of the fence. If your site is inclined in any direction, then you need to install a fence so that water does not accumulate under it. If the height of the corrugation is greater than 40 mm (as with universal corrugated board), then metal profiles must be used;
Photo - Installation with screws
Installation of external profile sheets to steel beams is carried out with screws and plastic gaskets. If you do not have a screwdriver or riveter at hand, then it is quite possible to use self-tapping screws. Screws can be replaced with rivets or even screws, but the use of spacers is mandatory. These elements help to protect the profiles from the pressure that forms on the head of the fastener;
Suppose you need to install profiles to the concrete pillars of the gate. Then we act a little differently: to the sides of the pole to which the corrugated board will be mounted, you need to attach metal corners or reinforcing pipes, which will play the role of a supporting part. Next, we fix the planks with construction dowels, after 20-30 cm (depending on the height). After we attach the planks to the lags and cover the gate and fence;
Photo - Fastening the profile to the fence
The mounting technology is as follows: every 30-40 cm it is necessary to mark the installation sites for screws, rivets and other things. Next, we advise you to stretch the thread around the perimeter of the fence so that you can screw the parts at the same level, so the installation will look neater and more professional. In no case do not drive the screws, the impact load can cause deformation of the sheet and its further destruction. The location is selected based on the size of the fence and the method. For example, screw connections can be made in parallel, rivet connections can be made crosswise, and it is better to alternate screws due to the high stress that they create on the surface of the profile sheets;
To the corner, the sheets must be mounted in a special way. Depending on the area (on a balcony, facade or fence), a different overlap is made, in this case it can be either internal or external. The optimal overlap is from 40 mm to 50, at the corner this figure can be increased to 60 mm.
After all fastenings are completed, the corrugated board must be covered with a primer. This will help prevent corrosion at the joints. In addition to the primer, you can also use the outer enamel, many manufacturers of profile sheets offer coloring and protective mixtures that are highly resistant and quite affordable. There are even polymer coating products on the market that help extend the life of the sheets and give them strength. All joints are processed, if necessary, after the grease has hardened, you can paint the fence. For this at home, we recommend using pressure painting.

Fastening for a fence from corrugated board does not require special requirements from SNIP or GOST, if its height is not more than 2 meters, then any methods can be used. Otherwise, you will have to contact specialists and calculate the required stiffness and strength based on many factors (climate, height, length, fence and support material, fasteners).

Installation method of profile sheets on the roof

Fastening a profile sheet to wood is much easier than using metal pipes, but do not forget to lubricate the wooden rafters and logs with components that help the material resist rodents, mold, etc.
When installing the profile flooring on the facade or walls, you may need to insulate it. For this we use brackets;
Regularly check the condition of the profile sheet in the places of overlap, this will help to find and neutralize corrosion and destruction in time;
It is very important for the structures to be placed on the correct frames. There are several options for creating props. You can cook it yourself, this will help create individual parameters, or you can buy ready-made. For example, often construction companies that sell corrugated board offer frames for garages, roofs and even fences;
Profile sheet consumption should be calculated by runs. Let's say you have a fence that needs to be covered, it has 10 runs of 1.5 meters each, and the profile sheet that you will use is a meter wide. You also need to consider that the useful length of the sheet is -30 cm (due to overlap). An equation of this type will be obtained: 10 * 1.5 = 15 (total length of the fence), in turn 15 / 1 = 15 (number of meter sheets), and now we calculate the correction factor: (1-0.3) * 15 = 10.5 ( 11 sheets will be needed for overlapping);
If you have an uneven mansard roof, then keep in mind that it is easier to make waves and reliefs with universal profile sheets;
The fastening rate for each material is determined individually. It can be either 30 cm difference between the rivets, or 20 or 40.

Profile price:

Wall - from 150 rubles per square meter (such a price for a profile in Ufa);

Roofing - from 180 rubles.

The search for building materials may take some time, because. it is necessary to select certain parameters of rigidity, strength, it is desirable that the sheet be in advance with a heater and covered with a polymer composition.

The strength of any structure mainly depends on the use of quality materials and proper installation. Any errors in the installation of the profiled sheet to the crate will negatively affect further operation and durability.

What fasteners are mounted corrugated board to the crate?

Hardware - special fasteners designed for the installation of corrugated board. Currently, industrial enterprises produce a very wide range of fasteners. Between themselves, they can differ in strength and method of installation.

The product range consists of rivets, screws, self-tapping screws, dowels and roofing nails. All of them are made of various materials, differ in design and scope. The wrong ratio of fasteners and the material that is fastened to them will lead to breakage or instability of the structure being erected.

Metal girders and corrugated board are interconnected with rivets and self-tapping screws for corrugated board. The differences between them are significant. The advantages of a self-tapping screw over a rivet in its form. The sharp tip, like a drill, makes a hole in the surface, so there is no need to pre-drill a hole during installation. It does not require the use of any additional tools and experience in work. Even an inexperienced builder will cope with the installation. Also, with proper handling, its service life can be quite long.

If you need to dismantle the structure, the self-tapping screw will be quite suitable for reuse. The color variety of self-tapping screw heads allows you to choose fasteners in accordance with the color of the profiled sheets and thereby mask the junctions with each other.

Installing a rivet requires a hole and an additional tool such as a drill. With an uncomfortable position of the roofing material, installation can cause inconvenience. To do this, the corrugated sheet is bent to the required angle, which can lead to its deformation and damage. The reuse of the rivet is not possible, because if it is disconnected, it disintegrates and loses its working abilities.

Taking into account the features of a hardware in the form of a rivet, the method of riveting in installation has a narrow focus. Basically, it is chosen when other methods are not available, for example, in connecting a profiled sheet to metal hollow runs in the form of pipes and corners, where fastening can be done on one side. Despite the fact that rivets are less popular, installation with their help is quick, and the structures are durable and waterproof.

Rules for fastening corrugated board

Fastening of the corrugated board to the metal profile is carried out with self-tapping screws with rubber gaskets. This will ensure tightness at the junction. Sheets are overlapped on 1-2 notches. For wall and roof cladding, sheets are vertically stacked on top of each other by about 10-15 cm. The joints are fastened together, and when mounted, the screws are screwed into the concave part. This mounting option provides the most snug fit and eliminates the formation of leakage at the docking points. As an additional protection against moisture ingress from the outside, the joints are laid with silicone sealant.

Wall and roof cladding performed in any convenient direction. The calculation of the number of hardware is based on the length of the covered area and the number of waves. On average, this is 21-25 pieces for the entire surface. From below and from above, the fastening is carried out in each concave part of the sheet; in the middle part, gaps in 2-3 waves are allowed. On average, the consumption is 7-8 self-tapping screws per 1 sq.m.

After the installation is completed, the chips that remain after the installation of the hardware should be removed. Otherwise, it will rust and harm the surface of the corrugated board.

The fastening of sheets on the roof takes place in accordance with certain rules. Take into account the pressure on the screw when screwing in. Too much load can damage the deck surface. Weak twisting will leave gaps and the roof will leak.

Profiled sheets are laid, starting from the bottom and gradually moving up. The protrusion of the end of the first sheet beyond the roof level should be 5-10 cm.

How to fix the corrugated board with self-tapping screws?

Self-tapping screws as fasteners are designed for mounting corrugated board both on a metal frame and on a wooden one. Before you screw in the screw, you need to bait it. It is strictly forbidden to use drills or screwdrivers without a rotation and speed regulator, this may damage the fasteners or the surface of the profiled material.

The maximum speed of screwing the metal sheet to the run is 1500 rpm. It is necessary to monitor the angle of inclination of the hardware. Curvature is not allowed, the location of the self-tapping screw to the surface must be strictly perpendicular, otherwise there will be a shift to the side and it will not twist.

The use of self-tapping screws for mounting profiled sheets to girders without drilling is carried out only if the thickness of the latter does not exceed 2 mm.

From where the fastening work will be carried out, choose the size of the screws. Diameters vary from 0.48 to 0.63 cm, length, respectively, from 1.9 to 25 cm. In the open air, they are subject to greater stress during operation. This is influenced by various external factors and weather conditions, such as strong winds, thunderstorms, etc. When installing profiled sheets on the roof, you should choose fasteners of a smaller diameter, due to the likelihood of shifts. For a fence, on the contrary, a large diameter is suitable because of the possibility of a gap.

How to fix corrugated board with rivets?

The rivet consists of an aluminum sleeve with a metal core. The installation process with rivets is not difficult. Installation is carried out only on one side and does not require much effort on the part of the worker.

To fasten the profiled sheets to the run or between them with rivets, it is carried out using a special riveting tool, having previously drilled the inlet holes. By squeezing the sleeve at the attachment point, an influx of the cap is formed. Retracting inside the gun, the fastening cap is formed in the required position and holds the elements together.

Rivets are made of aluminum and galvanized steel. They are light and easy to handle. The diameter and material of the rivets is selected depending on the thickness of the metal sheet.

Fasteners with a larger diameter will provide more reliable fastening, which in turn will positively affect the overall design and extend its service life. Rivets by the type of shoulder are on sale in the following assortment:

secret - after installation they are invisible on the surface;
wide - to obtain a strong connection;
standard - universal and suitable for any type of fastening.

The correct fastening of a profiled metal sheet with a purlin or crate also depends on the length of the rivet. Its selection should be carried out in such a way that, before installation, the end of the rod extends beyond the fastening by at least 1 cm.

A larger protrusion will result in flaring further away from the attachment point and proper tightness will not be achieved. A protrusion less than a centimeter will not provide a sufficient influx of the cap. The required length of the rivet is determined by adding the thickness of the corrugated sheet and the thickness of the run.

An important point is the choice of the color of the rivet. For the integrity of the structure, aesthetic appearance and invisibility of the bonding point, it is better to select fasteners in the same color as the corrugated board.

NATIONAL ASSOCIATION OF BUILDERS

Organization Standard

Building structures metal

STEEL DECKINGS
PROFILED FOR DEVICE
COATINGS OF BUILDINGS AND STRUCTURES

Rules, enforcement and requirements
to the results of work

STO NOSTROY 2.10.89-2013

Moscow 2013

Foreword

Introduction

This standard was developed in accordance with the Standards Program of the National Builders Association, approved by the Council of the National Builders Association on April 20, 2011, protocol No. 18.

The purpose of developing this standard is to create a generalizing regulatory document that takes into account the progressive experience in the use of steel profiled decking for coating in construction and in the reconstruction of industrial and civil facilities in accordance with the requirements for their safe operation.

Team of authors: Ph.D. tech. Sciences N.I. Presnyakov, cand. tech. Sciences E.L. Hayrumyan, cand. tech. Sciences V.F. Belyaev, S.I. Bochkova, N.I. Kamenshchikov(CJSC "TsNIIPSK" named after Melnikov).

STANDARD OF THE NATIONAL ASSOCIATION OF BUILDERS

1 area of use

1.1 This standard establishes the rules for the installation of profiled flooring for the installation of coatings for buildings and structures, the requirements for the results of the installation work performed and for the quality control system for their implementation.

1.2 The standard applies to profiled decks in purlin and non-purlin pavement systems, including decks that act as stiffening diaphragms in the plane of their attachment to supports.

1.3 The object of standardization is the profiled flooring of buildings and structures, made of cold-formed profiles according to GOST 24045, from galvanized steel with a thickness of 0.5 to 1.5 mm according to GOST 14918, GOST R 52146 and GOST R 52246.

1.4 This International Standard supplements the requirements for the installation of profiled steel decking as specified in

2 Normative references

This standard uses normative references to the following standards:

GOST 9.307-89 Unified system of protection against corrosion and aging. Hot zinc coatings. General requirements and control methods

Profiles with trapezoidal corrugations (figure);

Cassette profiles (image a) figure);

Profiles for flooring with a seam connection (image a) figure ) and with double seam connections (image b) figure ).

4.3 Wavy profiles with sinusoidal corrugations with a height of not more than 20 mm are used in non-insulated roof decking, which performs mainly a waterproofing function and does not contain heat-insulating materials.

S - wave step; B - mounting width; h - corrugation height

4.4 Profiles with trapezoidal corrugations are made according to GOST 24045 from galvanized steel with a thickness of 0.5 to 1.5 mm with a corrugation height of 20 to 160 mm. Flooring from such profiles can be used in the construction of insulated and non-insulated coatings.

a and b - the width of the shelves; t - profile thickness

4.5 Cassette profiles made of steel with a thickness of at least 0.7 mm are attached to purlins or frame structures of a non-purlin coating (trusses or beams), supporting the insulation, which is located in the cavity of the profiles. The flooring along the bearing cassette profiles is made of corrugated sheets with corrugations not more than 60 mm high (image b) figure).

a) profile for cassette type flooring

b) structural scheme of the coating of cassette profiles
1 - outer skin made of profiles with trapezoidal corrugations; 2 - cassette profile;
3 - run; 4 - insulation

4.6 In non-insulated and insulated coatings, the flooring with longitudinal joints in a double fold (image b) figure) performs the function of a roof. The profiles of such a flooring have bends along the longitudinal edges (image a) figure) and are made of galvanized rolled steel with a thickness of 0.55 - 0.60 mm, usually with a polymer coating.

a) profile for flooring with seam connection

b) connection of profiles in a double standing seam

1 - top profile; 2 - lower profile; 3 - clamp;
4 - self-tapping screw; 5 - crate element

Connections on self-tapping self-drilling screws according to [ , ];

Connections on dowels, installed by shooting with a special powder gun according to;

Connections by one-sided spot welding (welded electric rivets) for fixing unpainted profiles according to.

4.8 The decking profiles are fixed on the extreme support runs in each wave (image a) figure), on the intermediate supports of continuous decking - through the wave (image b) figure). If the decking in the pavement acts as a stiffening diaphragm that replaces the required horizontal ties, the decking profiles must be fastened in each wave on all supporting girders in accordance with the requirements , , .

a) on the extreme supports

b) on intermediate supports

1 - reference run; 2 - profile; 3 - fastener

5.1.2.2 It is allowed to use profiles from steels of foreign production, the quality indicators of which comply with the requirements of GOST 14918, GOST R 52146 and GOST R 52246.

5.1.3 Transport, unloading and storage of packages with floor profiles

5.1.3.1 Transportation of decking profiles to the place of installation is carried out in packages weighing no more than 5.0 tons, tied with a metal tape every 2.0 - 3.0 m and securely fixed from movement. Profiles of the same brand are placed in each package, the length of which should not exceed 12 m with a difference in profile lengths of not more than 250 mm. Packaging must ensure the safety of profiles and their protective coating from mechanical damage during transportation.

5.1.3.2 Loading and unloading of packages with profiles should be carried out using lifting equipment with soft (textile) slings fixed at several points on the package, and with a package length of more than 5 m - using a traverse with vertical slings.

Combine profiles of the same brand and the same thickness in separate packages;

Clean the profiles of emulsion residues, dirt and scale with appropriate solvents and rags.

5.1.4.2 When accepting flooring profiles, the following parameters shall be controlled:

The quality of the zinc and paint coating of profiles, which must meet the requirements of regulatory documents for the material of the original workpiece for profiling in accordance with GOST 9.307 and controlled in accordance with GOST R 51694;

The quality of the protective properties of the profile coating, which must be confirmed by the climatic test report in accordance with GOST 9.401, attached to the product quality document;

The presence of abrasions, risks, traces of forming rolls on the surface of a zinc, paint or polymer coating, which should not disturb its continuity;

Limit deviations of dimensions for all types of profiles, which should not exceed the values \u200b\u200bspecified in the table;

Crescent profiles, which should not exceed 1.0 mm per 1 m of the profile length;

Waviness on the flat sections of the profiles, which should not exceed 0.5 mm, and on the bends of the outer shelves - 1.5 mm;

The difference in the widths of the extreme shelves of the profile, which must be at least 2 mm;

The oblique cut of the profiles, which should not take their length beyond the nominal size, taking into account the permissible deviation in length, which is checked by measuring the maximum length of the profile using a tape measure;

The length of the profiles, which should be no more than 12 m.

5.1.4.3 To control the parameters according to table 1, one upper profile is selected from each package. If unsatisfactory test results are obtained for at least one of these parameters, repeated control is given on a doubled number of package profiles. If during re-checking at least one profile does not meet the required parameters, then the entire package is subjected to a piece-by-piece check.

5.1.4.4 The thickness of zinc, polymer and paint coatings on decking profiles should be checked in accordance with GOST R 51694. The coating thickness should be determined using standard thickness gauges of the MT 2007 type according to TU 4276-004-45025003-2003 or Constant-K5 according to TU 4276-002-274-49627-2006.

5.1.4.5 For deck profiles made of foreign-made steel, input quality control of their material shall be provided in accordance with the requirements of SP 48.13330. When performing incoming inspection at the picking base, documents (passports, certificates, acts, etc.) must be provided confirming the quality of the decking steel in accordance with the requirements of the design and regulatory and technical documentation. If necessary, the determination of the mechanical properties and chemical composition of the flooring material in accordance with GOST 1497 is carried out during the input control at the construction site.

5.1.4.6 For use in a non-aggressive environment, profiled flooring in accordance with SP 28.13330 must be made of galvanized steel with zinc thickness class I in accordance with GOST 14918 or galvanized steel with zinc coating class 275 in accordance with GOST R 52246.

5.1.4.7 The nominal thickness of the polymer coating on the front and back sides of the rolled products and the number of coating layers must comply with the requirements specified in the project documentation.

5.1.4.8 Steel fasteners (self-tapping screws, blind rivets and dowel-nails) made of corrosion-resistant steel or fasteners having a zinc or cadmium coating with a thickness of at least 10 µm shall be used for profiled flooring connections , , .

5.2 Main work

After completing a set of preliminary works to create conditions for observing the installation technology of the profiled flooring, the main work is carried out. The installation of the flooring should be carried out at a temperature not lower than minus 20 °С and not higher than +30 °С at a wind speed of not more than 10 m/s without precipitation.

5.2.1 Mounting methods for corrugated profile decks

5.2.1.1 The installation of the flooring is carried out by separate profiles or enlarged cards.

5.2.1.2 The installation method of the decking should be provided for in the PPR, depending on the local installation conditions, taking into account the technical and economic feasibility of the selected option.

5.2.1.3 When installing the flooring without preliminary enlargement into pictures, sheet profiles are fed in packages to the floor using a crane. The number of profiles in the lifted package should not exceed 10 pcs. Profile packages should be placed above the transverse axes of the supporting frame of the building along the crossbars and trusses, preventing their placement within the span of the girders.

5.2.1.4 The decking should be laid in the direction from one end of the building to another and from the longitudinal edge of the coating to the middle of its span in parallel rows (see image a) figure ) or steps (see image b) figure ). When using profiles longer than 6 m and in the case of joining sheets of any length with an overlap, the first method of laying out the flooring is used, in other cases, any of these methods is possible in accordance with.

5.2.1.5 The decking profiles in case of sheet-by-sheet layout of the decking shall be located according to the markings that ensure the fixation of the installation width of the corrugated profile (distance between the axes of the outer flanges) with an accuracy of ±10 mm per profile width. When the end overhangs of the supporting profiled sheet come out onto the facade of the building in the case of installation of front end combs, deviations from the accuracy of mounting the sheet along its width should not exceed ± 4 mm.

5.2.1.6 To cut profiles, use an electric jigsaw, electric shears or a circular electric saw (abrasive discs are not allowed for cutting profiles).

a) ordinary; b) stepped

5.2.1.7 The joining of the flooring profiles along the longitudinal edges shall be overlapped, along the transverse edges (on girders) - overlapped or butt-jointed in accordance with the project. In cases where the fastening step is not specified in the documentation, profiled sheets must be fastened in the transverse direction through the wave on intermediate supports and in each wave along the perimeter of the building. It is allowed to fasten the sheet in advance with two hardware in the outermost shelves, but at the end of the shift, it is necessary to fasten the sheets with a full number of hardware according to the project.

In roof decks, the width of the overlap at the transverse joints of the deck (figure ) must be at least 200 mm.

In decking, working in the coating as a stiffening diaphragm, the pitch of hardware or welded points in the longitudinal joints of the profiles is taken according to the calculation, but not more than 300 mm, in other cases - not more than 500 mm.

Roof decking from profiled sheets should be carried out on slopes of more than 20% (12°) without sealing joints, on slopes from 10% to 20% (6° - 12°) sealing of longitudinal and transverse joints between sheets should be provided. The amount of overlap of the flooring profiles along the slope should be at least 200 mm, across the slope - by one corrugation.

5.2.1.8 Settling of the upper profile in the places of overlapping shall be carried out using light pressure or blows with a wooden hammer, which do not damage the surface of the flooring and do not change the cross-sectional shape of its corrugations.

5.2.1.9 When laying the decking, the edges of the profiles should be located in a straight line, while observing the width of the decking support on the girders specified by the project in the places of its transverse joints. The support width of the flooring should be taken at least 40 mm on the extreme and 60 mm on the intermediate supports. In single-span decking, the profiles are attached to the purlins in each wave. Profiles of continuous (multi-span) floorings are attached to the extreme runs in each wave of corrugations, to intermediate runs - through the wave. Ways of fixing the decking are given in the section

5.2.1.10 When installing the flooring with enlarged cards with dimensions of 6 × 12 m or 12 × 12 m, the cards are collected on a stand in the area of installation of building structures.

The stand is rearranged by crane to new parking lots according to the scheme provided for by the PPR.

5.2.1.11 Cards are assembled from profiles of the same type, connected to each other along the longitudinal edges with the help of blind rivets, located with a step of not more than 300 mm.

5.2.1.12 The finished card is lifted and fed to the laying place with channel beams suspended on slings, the L-shaped grips of which are led under the sheets. The card is laid on the coverage runs, its position is aligned and adjusted according to the marking risks on the runs. The scheme of organization and installation of the profiled flooring covering with enlarged maps is shown in the figure.

a) slinging scheme; b) grip detail
1 - traverse; 2 - slings; 3 - beams with gripping elements;
4 - corrugated board map; 5 - gripping hooks

5.2.1.13 The installation of steel profiled decking with separate profiles or enlarged maps should be carried out according to the markings that ensure the fixation of the calculated width of the profiled sheet (distance between the axes of the extreme corrugations), in accordance with the values \u200b\u200bestablished by GOST 24045 or the corresponding specifications, with an accuracy of ± 10 mm per width profiled sheet.

5.2.2 Fastening profiles

5.2.2.1 The following fastenings of sheet profiles are used in steel profiled decking:

The profiles are fastened together on supports to steel girders with self-tapping screws, dowels or welded electric rivets;

The profiles are fastened together in the span along the longitudinal edges with the help of exhaust (combined) rivets or self-tapping screws;

The profiles are fastened along the longitudinal edges of the roofing sheets in a double seam.

5.2.2.2 The flooring in the cards is fixed to the girders with self-tapping screws, dowels or welded electric rivets provided for by the project. The places for attaching the card to the runs must be marked using a group template. Slings are removed only after installing at least 30% of the mounts of their total number in the map.

5.2.2.3 Two types of self-tapping screws are used in deck joints:

Self-drilling screws with a drill tip that allows holes to be drilled for the screw during installation;

Self-tapping screws without a tip, requiring a pre-drilled hole at the screw location.

5.2.2.4 Self-drilling self-tapping screws for connecting profiled sheets to each other must have a diameter of at least 4.8 mm and a length of not more than 28 mm. The total thickness of two or three profiles connected by these screws must not exceed 2.75 mm.

5.2.2.5 To fasten the deck to the steel load-bearing elements of the roof (girders, beams, trusses), self-drilling self-tapping screws with a diameter of 4.8 to 6.3 mm made of high-strength steel with a shear strength of at least F v= 320 MPa with a zinc coating with a thickness of at least 10 microns. These screws are used to fasten the flooring to the base metal with a thickness of 1.25 to 12.00 mm with a tensile strength of at least 370 MPa. The flooring is fastened directly to the supporting structure or through a layer of insulation with a screw length of not more than 55 mm. To fasten the flooring in a slightly aggressive environment according to SP 28.13330, self-drilling screws with a diameter of 4.8 and 5.5 mm and a length of not more than 100 mm from corrosion-resistant steel with a shear strength of at least F v= 320 MPa.

5.2.2.6 Self-tapping screws with a diameter of 6.3 mm with zinc coating are used for fastening profiled sheets to metal structures in which, before installing the screw, it is necessary to drill a hole of a smaller diameter, the value of which is indicated in the table. The length of these screws must not exceed 100 mm.

Base metal thickness, mm				≥ 7,0
Required screw hole diameter, mm

5.2.2.7 Self-tapping screws may be supplied with or without 16 mm plastic sealing washers. For roof decking, screws must be used with washers. The tip of the self-drilling screw must be made in the form of a drill, the length of which depends on the thickness of the base metal. Screws with a short drill are used to connect sheets with a total thickness of 0.75 to 3.00 mm, with a medium-length drill - for fastening to a base metal with a thickness of not more than 6.00 mm, with a long drill - for a thickness of 5.00 to 12 .00 mm. After installing the screw, the drill should protrude from the base metal by at least 2.0 mm.

5.2.2.8 Screws are installed using electric screwdrivers equipped with a screw torque limiter to the required depth (for screws with sealing washers) or torque regulators (for screws without washers).

5.2.2.9 To fasten profiled sheets with a thickness of 0.6 to 1.5 mm to a steel structure with a thickness of 3 to 8 mm, universal dowels with a diameter of 4.5 mm from steel with a tensile strength are used Fp> 2000 MPa.

5.2.2.10 Dowels are used to fasten a package of steel decking sheets with a total thickness of not more than 4.0 mm to a steel structure with a tensile strength of not more than 630 N/mm2.

5.2.2.11 The scope of dowels is limited by the thickness and strength of the base metal, the maximum thickness of which must be indicated in the certificate for the dowel, depending on its brand.

5.2.2.12 The dowels are driven into the base material using a powder-actuated mounting gun designed for the installation of single dowels or equipped with a tape dowel magazine for serial installation. The tightness of pressing the profile with the dowel washer is checked using a probe with a nominal thickness of 0.1 mm.

5.2.2.13 To install the dowel, the width of the lower support flange of the decking with trapezoidal corrugations shall be at least 40 mm. The distance from the center of the dowel to the nearest corrugation wall must be at least 20 mm.

5.2.2.14 The distance from the edge of the attached structure to the nearest dowel must be at least 10 mm. The minimum pitch of the dowels along the corrugations of the flooring is 45 mm, across the corrugations - at least 20 mm. The distance from the dowel to the edge of the flooring must be at least 20 mm.

5.2.2.15 Welded spot joints are used to fasten unpainted profiled decking to steel supporting structures in buildings with a non-aggressive environment.

5.2.2.16 Floor profiles welded to galvanized or non-galvanized steel structures must be made of 0.8 - 1.0 mm thick galvanized steel in accordance with GOST 14918.

5.2.2.17 Welded joints of deck profiles with girders should be performed using one of the methods of spot arc welding:

Submerged;

in carbon dioxide;

Self-shielded flux-cored wire;

coated electrode.

5.2.2.18 The melted surface areas and the adjacent area of welded sheets and girders within a radius of at least 20 mm must be cleaned of dirt, rust, grease before welding.

5.2.2.19 When manually welding decking profiles with coated electrodes, the following operations must be performed:

Install the device at the welding site (figure);

Firmly press the sheet to the run by pressing with the device (the gap between the surfaces to be welded is allowed no more than 0.5 mm).

Install the electrode in the hole of the forming device;

Make a spot connection at a welding current of 120 - 200 A, depending on the diameter of the electrode, for 2 - 3 s.

Remove the device and move it to the next welding site.

5.2.2.20 Joint surfaces after welding shall be cleaned from slag and flux residues.

5.2.2.21 Welded joints of profiled decking shall be additionally protected against corrosion in accordance with the requirements of this standard.

5.2.2.22 Welding quality control is carried out in accordance with the section of this standard and the requirements of STO NOSTROY 2.10.64.

1 - copper plate; 2 - steel plate; 3 - screw М16×16 GOST 17475

5.2.2.24 The body of an aluminum alloy rivet with a diameter of 2.4 to 6.4 mm and a length of up to 50 mm shall have a flange with a diameter of 5 to 13 mm.

5.2.2.25 The steel body of the rivet with a diameter of 3.2 to 4.8 mm and a length of up to 12 mm shall have a flange of 6.0 to 9.5 mm. The rivet body and shank are produced by cold heading on special machines and are delivered assembled.

5.2.2.26 The maximum thickness of a stack of joined sheets depends on the diameter and length of the rivet body. In the joined sheets for the installation of rivets, holes are pre-drilled with a diameter of 0.1 mm larger than the diameter of the rivet.

5.2.2.27 The load-bearing capacity of one standard rivet in profiled overlap joints is determined from the results of tests according to the standard method.

5.2.2.28 The pitch of rivets in the joints of the longitudinal edges of profiled sheets between themselves should not exceed 500 mm, except for decking, which perform the function of stiffening diaphragms in building coatings.

5.2.2.29 Metal-free connections of profiled sheets to each other along the longitudinal edges in the roofing without transverse joints along the slope are performed using a folding machine that forms a double fold in the longitudinal joint (see image b) figure).

At the same time, along the runs installed across the roof slope, additional steel elements from bent profiles, called bowstrings, are placed along the slope. The cross-sectional dimensions of the bowstrings should be taken taking into account the required thickness of the insulation and the size of the gap, equal to 30 - 50 mm, between the roofing sheet and the surface of the insulation.

Across the bowstrings are elements of the crate made of wooden beams or thin-walled steel profiles with a step determined by the calculation for permissible loads, profiled roofing sheets with a width of not more than 600 mm are fastened to them using galvanized steel clamps 0.55 - 0.60 mm thick. In this case, the edge bends of the sheets to be joined and the clamps form a common longitudinal joint - a double fold. The double seam can be crimped with an electromechanical seam seamer or with manual roofing tools.

5.2.2.30 When constructing roofing from profiled decking with seam longitudinal joints, changes in the linear dimensions of the sheets due to thermal expansion of the metal should be taken into account. It is required to provide sufficient gaps in the design of the roof covering to ensure free mutual movement of its components in order to prevent deformation in accordance with SP 17.13330.2011.

5.2.3 Corrosion protection of profiled sheets and their joints

5.2.3.1 Corrosion protection of steel profiled decking and its joints should be carried out depending on the degree of aggressive influence of the environment in accordance with the requirements of SP 28.13330.

5.2.3.2 Corrosion protection of welded joints of profiled decking should be carried out using painting, taking into account the following requirements:

Before painting, weld points should be cleaned of metal spatter, slag, flux residues and other contaminants with a wire brush. The points should have a smooth surface without sagging, with a smooth transition to the base metal;

Welded joints prepared for protection should be degreased with gasoline - white spirit solvent according to GOST 3134 using a rag or brush;

On the dried surface of the connection, it is necessary to apply a paint and varnish coating, the type and nominal thickness of which are accepted in accordance with the requirements of the project documentation.

5.2.3. For use in a slightly aggressive environment, profiled flooring must be made of galvanized steel with an additional polymer coating in accordance with GOST R 52146. The following materials are used for polymer coating:

Primers with a thickness of 5 - 7 microns;

Finishing enamels 20 - 60 microns thick;

PVC plastisol 100 - 200 microns thick.

6 Requirements for the results of work after the installation of profiled flooring

6.1 The quality control of the installation of profiled decking is ensured by the current control of the technological processes of the preparatory and main works, as well as control during the acceptance of work. Based on the results of the current control of technological processes, certificates of examination of hidden works are drawn up (the form of the act is given in the appendix).

6.2 In the process of preparing the installation of the flooring, check:

Readiness of structural elements of the coating and attachment points of profiles, means of mechanization and tools for work;

The quality of the profiles (dimensions, absence of scratches, dents, bends, breaks and other defects).

6.3 During the installation process, the coatings are checked for compliance with the project:

Run marking accuracy;

Accuracy and strength of fastening profiled flooring;

The accuracy of the installation of the flooring and, in particular, the gaps in the places of their joining;

The flatness of the flooring of the coating;

The correctness of the device of shaped parts and junctions.

6.4 Acceptance of work after the installation of the profiled flooring is accompanied by the issuance of an act of acceptance of work (the form of the act is given in the appendix). The quality is assessed by the degree of conformity of the actual parameters and characteristics of the installed coating with the design ones specified in the working documentation of the project. The acts of examination of hidden works are attached to the act (the form of the act is given in the appendix).

Limit deviations of the actual position of the mounted profiled decking should not exceed the values given in the table when accepting.

6.5 Acceptance of the coating from steel profiled decking is carried out by an acceptance committee consisting of representatives of the customer and the contractor and is formalized by signing an acceptance certificate (the form is given in the appendix). The following documents are attached to the act:

Coating design and WEP;

Journal of work production;

Executive drawings;

Certificates of examination of hidden works (the form is given in the appendix);

Documents certifying the quality of components and materials.

7.1.2 The rules and accuracy of measurements of the parameters of the flooring and its joints after installation must comply with the requirements of GOST 26433.2.

7.2.3 For manual welding with a coated electrode, MP-3 electrodes with a diameter of 3.0 and 4.0 mm according to GOST 9466 should be used in accordance with a certificate confirming their compliance with the state standard or passport.

7.2.4 The surface of the electrodes must be clean and smooth, without mechanical damage.

7.2.5 Welding consumables should be stored in a dry closed room at a temperature not lower than +18 °С and relative humidity not more than 50%.

7.2.6 Coated electrodes must be ignited before use. The mode of annealing of MP-3 electrodes and the warranty period of their storage are given in the table.

7.2.8 In the process of acceptance control, the quality of welded joints should be assessed by external inspection and selective measurements of joints in the amount of 5% of joints and mechanical tests of control samples for shear. According to the results of visual and measuring control, an act is drawn up (see Appendix E STO NOSTROY 2.10.64).

7.2.9 In appearance, the welded electric rivet after installation must have a surface with a smooth transition to the base metal, a diameter of 20 ± 2 mm and a bulge in height of not more than 4 mm.

7.2.10 Cracks, burns and splashes of metal are not allowed in welded joints.

7.2.11 To control the quality of a welded joint, STO NOSTROY 2.10.64 provides for a destructive method of control in the form of mechanical tests of tolerance samples of welders and production control welded joints. To do this, the installation organization must make at least three control samples and submit them to the control commission for shear tests in accordance with GOST 6996 (see figure).

Control samples are tested for shear before the start of welding work at the facility under construction.

1 - a fragment of the flooring; 2 - weld point; 3 - snap shank

7.2.12 The results of the test specimens for shearing are considered satisfactory if all specimens of the joint of the flooring with the supporting element withstand breaking forces of at least 4.4 kN.

7.2.13 With positive test results of control samples, a decision is made to weld the design joints in the established mode.

7.2.14 Based on the results of testing the joints, an act is drawn up indicating the diameter of the weld spot and the nature of its destruction (the form is given in the Appendix).

7.2.15 If there are defective joints, it is necessary to make a duplicate welded joint in the adjacent corrugation.

8 Reporting and technical documentation on the results of installation and quality control of the flooring

8.1 Acceptance of the coating from steel profiled decking is carried out by an acceptance committee consisting of representatives of the customer and the contractor and is formalized by signing an acceptance certificate (the form is given in the appendix). The following documents are attached to the act:

Drawings of KM coating and PPR;

Journal of work production;

Executive drawings;

Executive schemes of geodetic verification;

Acts for hidden work (the form is given in the appendix);

Documents certifying the quality of components and materials:

Product quality document;

Name	Type, brand, GOST, drawing No., manufacturer	Technical specifications	Purpose
Construction hoist	PGS-500	Load capacity 500 kgf	Supply of roofing materials
Folding scaffolds	RF 3241.09.000 TsNIIOMTP	Load capacity 200 kgf	Scaffolding
Plumb, cord	OT400-1, Nylon cord	Plumb weight no more than 0.4 kg, length 98 m. Cord length - 5 m, diameter - 3 mm	Delimitation of grips, check of verticality
spirit level	Type 70-1500 "STABILA"	Length 1500 mm, measurement accuracy 0.5 mm/m
Laser level	BL 20 SLE "Stroypribor"	Measurement accuracy 0.1 mm/m	Checking horizontal planes
Drill	Interskol DU 1000-ER	The maximum diameter of the drill (punch) 20 mm	Drilling holes in purlins
Roulette steel	R20UZK, GOST 7502	Length 20 m. Weight 0.35 kg	Measurement of linear dimensions
Lever head screwdriver	Profi screwdriver INFO-TEKS LLC	Reversible lever	Screwing/unscrewing screws, bolts
Manual impact wrench	Type IE-311	Tightening torque 12.5 kgf⋅ m	Screwing/unscrewing nuts, bolts
Electric drill with bits for screwing	Interskol DU-800-ER	Power consumption 800 W, maximum drilling diameter 20 mm	Drilling holes and driving screws
Riveting tongs	Type "ENCOR"	Rivet diameter up to 6 mm	Rivet installation
Battery riveting gun	Type ERT 130 "R IVETEC"	Rivet force 85 kgf, stroke 20 mm, weight with battery 2.2 kg	Installation of blind rivets
Inventory fences for installation works		Height not less than 1.6 m	Work safety
Protective mesh for scaffolding	Firms Apeks, Vert or other firms	Made from polymer fibers	Fall protection from scaffolding

10 Safety during installation, quality control of installation work and testing of profiled decking

10.1 When organizing and carrying out work on the installation of profiled flooring, quality control and testing of profiled flooring, the requirements of SNiP 12-03, SNiP 12-04, GOST 12.4.011 and STO NOSTROY 2.10.64 must be taken into account.

10.2 Fire safety at workplaces must be ensured in accordance with the requirements of GOST 12.1.004 and.

10.3 Electrical safety at workplaces must be ensured in accordance with the requirements of GOST R 12.1.019 and GOST 12.1.030.

10.4 The safety of roofing work at height must be ensured in accordance with.

Safety requirements for working at height include the following:

During the installation of the flooring, installers must be on previously installed fixed structures or on scaffolding;

For the transition of installers from one structure to another, transitional bridges and ladders with fences should be used, and where this is not possible, safety belts or safety ropes;

Lifting hooks, clamps, clamps and other devices for lifting steel structures must be sized and shaped to ensure safe grip without damage to structural parts and their reliable transportation;

Slinging methods for structural elements and equipment should ensure their supply to the installation site in a position close to the design one;

It is not allowed to carry out the installation of structures at a height under bad meteorological conditions, for example, with a wind speed of more than 15 m/s;

Under the installation area of structures at a height, a dangerous space must be provided with safety and warning posters, as well as signal lighting in case of poor visibility.

10.5 Workers must be provided with safety belts in accordance with GOST R 50849 and a safety rope in accordance with GOST 12.4.107. The places for attaching the safety rope to stable roof structures (for example, to rafters, to the ridge) must be indicated by the foreman or foreman.

A temporary protective fence should be installed along the border of the danger zone of possible falling objects from the roof.

10.6 When performing roofing work, the possible impact of the following hazards should be taken into account (according to SNiP 12-04):

Sharp edges and corners of metal roofing sheets;

Moving parts of construction manual machines;

Location of the workplace near the height difference of more than 1.3 m;

Works of lifting mechanisms in the coverage area;

Electric shock when working at height with the use of personal protective equipment.

10.7 The construction site must be marked with danger signs and inscriptions of the established form in accordance with the requirements of GOST R 12.4.026 and STO NOSTROY 2.33.52.

10.8 Work areas must have fences in accordance with the requirements of GOST 23407 and GOST 12.4.059.

10.9 Occupational safety during warehousing and storage of profiles must meet the requirements of SNiP 12-03.

10.10 When performing dowel connections of profiled flooring with metal structures, the following requirements must be observed:

The mounting gun must have five degrees of protection against involuntary shots;

The barrel of the pistol during the shot must be located perpendicular to the surface of the connected elements;

A shot can only be fired if the force pressing the gun against the connected elements exceeds 5 kgf;

The shot will not take place without first pressing the trigger of the pistol all the way;

To execute a shot, it is necessary to sequentially perform all the above actions;

The shot will not fire when the pistol is dropped;

To prevent through penetration of the base material in the mounting gun, a piston principle of operation is used.

10.11 When making welding joints on galvanized flooring, the following requirements must be observed:

Metal parts of welding equipment that are not under voltage, as well as flooring and structures to be welded, must be reliably grounded;

Welding wires must have reliable protection with cables connected to welding equipment through cable lugs;

Welding on the roof during rain or snowfall in the absence of canopies over the equipment and the workplace of the electric welder is not allowed;

The workplace when welding galvanized profiled flooring should be well ventilated;

To perform welding work, an electric welder must be provided with a protective shield with a light filter in accordance with GOST 12.4.035 and a respirator, if necessary.

The form of the act of examination of hidden works on the roof of the building

Capital construction object ____________________________________________

(name, postal or building address of the capital construction object)

Builder or customer _____________________________________________________

on state registration, PSRN, TIN, postal details, phone / fax - for legal entities

___________________________________________________________________________

The person carrying out the construction __________________________________________

(name, number and date of issue of the certificate

___________________________________________________________________________

last name, first name, patronymic, passport details, place of residence, telephone / fax - for individuals)

The person who prepares the project documentation

___________________________________________________________________________

(name, number and date of issue of the certificate

___________________________________________________________________________

on state registration, PSRN, TIN, postal details, telephone / fax - for legal entities;

___________________________________________________________________________

last name, first name, patronymic, passport details, place of residence, telephone / fax - for individuals)

The person carrying out the construction, who performed the work subject to certification

___________________________________________________________________________

(name, number and date of issue of the certificate of state registration,

___________________________________________________________________________

OGRN, TIN, postal details, telephone / fax - for legal entities;

___________________________________________________________________________

last name, first name, patronymic, passport details, place of residence, telephone / fax - for individuals)

Representative of the developer or customer ______________________________________

___________________________________________________________________________

(position, surname, initials, details of the representation document)

Representative of the person carrying out the construction on issues of construction control _________________________________________________________________

(position, surname, initials, details of the representation document)

Representative of the person preparing project documentation ________

___________________________________________________________________________

(position, surname, initials, details of the representation document)

___________________________________________________________________________

(position, surname, initials, details of the representation document)

as well as other representatives of the persons participating in the survey: _____________

___________________________________________________________________________

(name, position, surname, initials, details of the representation document)

inspected the work performed by _______________________________________________

(name of the person carrying out the construction, performed the work)

and have drawn up this act as follows:

1. The following works have been submitted for examination _______________________

___________________________________________________________________________

(name of hidden works)

2. The work was carried out according to the project documentation _______________________________

___________________________________________________________________________

(number, other details of the drawing, name of the project documentation,

___________________________________________________________________________

information about the persons involved in the preparation of the project documentation section)

3. When performing work, _________________________________ were applied

(name of building materials,

___________________________________________________________________________

4. Documents were presented confirming the compliance of the work with the requirements for them: _______________________________________________________________

(executive schemes and drawings, results of examinations, surveys, laboratory and other

___________________________________________________________________________

tests of the work performed, carried out in the process of construction control.)

6. Works were performed in accordance with _____________________________________________

(indicate the name, articles

___________________________________________________________________________

(clauses) of technical regulations (norms and rules), other regulatory legal acts,

___________________________________________________________________________

sections of project documentation)

7. It is allowed to carry out subsequent work on _____________________________

___________________________________________________________________________

(name of works, structures, sections of engineering and technical support networks)

___________________________________________________________________________

Additional information ____________________________________________________

The act is drawn up in ___ copies.

Applications: _________________________________________________________________

___________________________________________________________________________

Representative of the developer or customer ______________________________________

(position, surname, initials, signature)

Representative of the person carrying out the construction ____________________________

Representative of the person carrying out the construction in matters of construction control

___________________________________________________________________________

(position, surname, initials, signature)

Representative of the person preparing the project documentation

___________________________________________________________________________

(position, surname, initials, signature)

Representative of the person carrying out the construction, who performed the work subject to certification ____________________________________________

___________________________________________________________________________

(name of the contracting authority that appointed the commission)

by order dated "__" _______________ 20__ No. ___

composed of:

chairman - representative of the customer ________________________________________

(surname, initials, position)

Members of the Commission of Representatives:

general contractor ___________________________________________________________

installation organization ________________________________________________________

(surname, initials, position)

SET UP:

1 Installer

___________________________________________________________________________

(surname, initials, position)

___________________________________________________________________________

(name of the organization and its departmental subordination)

submitted for testing

___________________________________________________________________________

included in

___________________________________________________________________________

(Object name)

2 The structures were assembled in accordance with the design documentation developed by

___________________________________________________________________________

(project code)

___________________________________________________________________________

(name of the design organization and its departmental subordination)

3 Construction work performed by the general contractor ________________

___________________________________________________________________________

(types of jobs)

4 Installation of the building cover is completed ______________________________________________

___________________________________________________________________________

(name of organization and list of types of work)

5 The Commission was presented with documentation in the amount provided for by SP 70.13330 (additional rules), listed in the appendix to this act.

6 Construction and installation works were carried out on time:

7 Tests were carried out in accordance with the Design and Development Plan developed by

___________________________________________________________________________

(project code,

___________________________________________________________________________

name of the organization, departmental subordination)

during the period ___________________________________________________________________

(test start and end date)

8 During the tests, ______________________________________________ was established

(indicate test results)

COMMISSION DECISION

___________________________________________________________________________

(date of document compilation)

object: _________________________________________________________________

(name of building, structure)

in axes: _________________________________ at elevation: __________________________

by the address: _______________________________________________________________

Commission consisting of representatives (position, name of organization, full name):

_________________________________________________________________________

Technical supervision of the customer ____________________________________________

_________________________________________________________________________

General contractor ______________________________________________

_________________________________________________________________________

Subcontractor ________________________________________________

_________________________________________________________________________

inspected the work performed by _______________________________________

(name of construction and installation organization)

and drew up this act as follows:

1 The following works were presented for examination and acceptance: ____________

_________________________________________________________________________

(Name of works)

2 Works were performed according to the design and estimate documentation: ______________________

_________________________________________________________________________

(standard, project series, name of the design organization, drawing numbers and the date they were left)

3 Works were completed in the period from __________________ to ____________________________

Commission decision

The works were performed in accordance with the design and estimate documentation, standards, codes of practice and meet the requirements for their acceptance

with REMARKS / WITHOUT REMARKS (delete unnecessary)

_________________________________________________________________________

(additions, remarks)

Representatives:

__________________

(signature)

__________________

(FULL NAME.)

Technical supervision of the customer

__________________

(signature)

__________________

(FULL NAME.)

General contractor

__________________

(signature)

__________________

(FULL NAME.)

Subcontractor

__________________

(signature)

__________________

(FULL NAME.)

The form of the act of assessing the quality control of installation work on the coating

on the object: _________________________________________________________________

(name of building, structure)

by the address: __________________________________________________________________

(building area, quarter, street, house and building number)

Representative

organizations: _______________________________________________________________

(Underline whatever applicable)

_________________________________________________________________________

Together with a representative of the contractor:

_________________________________________________________________________

(position, name of organization, full name)

inspected the work performed by __________________________________________

(name of construction and installation organization)

Based on the inspection carried out, the following actions are proposed for implementation:

No. p.p.	Name of events	Period of execution	Completion Marks

Responsible executors for the implementation of the above activities must be appointed by order.

In case of disagreement with the proposed measures or terms, it is necessary to inform the Representative of a dissenting opinion within 5 days from the date of receipt of this instruction.

(02494680, 17523759)

Production and installation of galvanized steel profiled flooring for lightweight roofing, hardware for its fastening

PPB 01-03 Ministry of the Russian Federation for Civil Defense, Emergency Situations and Elimination of Consequences of Natural Disasters. State Fire Service Fire safety rules in the Russian Federation

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Profiled rolled metal is perhaps the most commonly used roofing material in recent years. This is due not only to its high strength and wear resistance, but also to its relatively low price. If you have never encountered it before and do not know how to fix the corrugated board on the roof, carefully study this article.

What type of decking to choose?

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The strength and reliability of this type of material depends on several parameters:

steel thickness: Naturally, the higher this indicator, the better; too thin steel will bend at the slightest gust of wind; the most versatile material is considered to be 0.3-0.5 mm thick; but it is better to use a more durable profiled sheet 0.45-0.5 mm
corrugation shape and height: maximum rigidity is guaranteed by a wave in the form of a trapezoid; for roofs with a slope angle of 45 ° or more, its optimal height is at least 20 mm; for flat roofs this parameter should be higher
zinc coating thickness: it should be 140, and even better 275 g per square meter; a coating of lesser thickness will quickly become unusable, because zinc is able to weather over time

The most commonly used material for roofing is C20 or H20. The number 20 means the height of the profile in millimeters. Marking "H" is used for the carrier (roofing material). It has a wave in the form of a trapezoid of sufficient height, equipped with stiffeners. You can use universal (NS) and even wall profiled sheet, marked with the letter "C". It is only necessary to choose a material with a wave height of 20 mm. A roof assembled from the KP20 profile will be more reliable. The letter "P" in the marking indicates the presence of a groove for collecting condensate, which protects the roof even from small leaks.

The increased height of the corrugation will provide the material with increased rigidity. This material costs a little more. But the final price of the roof will be equal. After all, the consumption of profiled rolled metal C10 or P10 will be higher, since it will need to be laid with an overlap of 2 corrugations. For KP20, an overlap of 1 wave will be enough.

The bearing (roofing) material, marked with the letter "H", has a higher wave in the form of a trapezoid. Such stiffeners provide better resistance to snow and wind loads. But when using a more massive wall with a corrugation height of more than 45 mm, it will be necessary to strengthen the truss system, otherwise it may collapse.

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A material coated only with a layer of zinc will cost less. Decking with colored polymer protection looks more original. But the main function of such a coating is not only decorative - it is designed to additionally protect steel from premature corrosion. It will be better if it is matte - such coatings do not burn out so quickly. Polyurethane spraying is considered the most reliable and durable. Polyester-coated corrugated board will cost less.

It is impossible to check the actual thickness of the coating without special tools. Therefore, it is better to avoid buying material from little-known manufacturers. Be sure to pay attention to the straightness of the edges and the quality of the primer on the back of the sheets. There should not be any bends, kinks of sheets.

Required amount of material

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First you need to determine the total area of \u200b\u200bthe roof. The calculations here are simple - you need to find the area of \u200b\u200beach triangle (or rectangle, if the roof is gable), and then add up the resulting numbers.

We determine the required number of rows of corrugated board horizontally. To do this, it is enough to divide the length of the roof slope by the width of the sheet. The calculation is carried out without taking into account the overlap (it is 80-85 mm). Don't forget to round the total up. To calculate the number of sheets vertically, divide the height of the roof by the length of the sheet. In this case, it is necessary to add to the height of the roof the length of the cornice overhangs of 200-300 mm.

It remains to multiply the number of rows vertically and horizontally. Please note that we have received the number of sheets that will be needed to cover only one slope. If the roof is gable, naturally, the number must be doubled. For a four-slope, respectively, increase it by 4 times.

To determine the amount of material that will be cut, for clarity, it is better to draw a sheet layout diagram on paper. For complex roofs, it is advisable to use online calculators - it will make calculations more accurately.

Accessories

In addition to the corrugated board itself, you will also need to purchase fasteners (self-tapping screws) and additional elements for fastening on skates, valleys, in the area of \u200b\u200bthe chimney, and walls. You will also need corners, end and cornice strips. We will describe each of them in more detail below. When calculating the required number of additional elements, it must be taken into account that they, like the profiled sheet, are mounted with an overlap.

Lathing type

After installing the rafter system, laying waterproofing and battens, they begin to fasten the profiled sheets. To install the crate, you will need to purchase a timber with a width of 100-150 mm. With a small rafter pitch of 60-80 cm, a 25-mm beam is enough. If the distance between them is more than a meter, a thick beam of 50x50 cm is used for the crate.

If the rafters are spaced 80-100 cm apart, it is enough to purchase a 32 mm beam. For fastening the waterproofing, a 4-5 cm countertray is used.

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When choosing the pitch of the battens, they are guided by the thickness of the metal, the height of the corrugation and the angle of the roof. Sheets with a small corrugation height of up to 10 mm are laid only on a continuous crate. Such material is mainly used for roofing sheds and other utility rooms. A continuous crate will also be needed when laying the material on a roof that has a slight slope of up to 15 °.

C21 or MP-20R corrugated board with a thickness of 0.5-0.7 mm is mounted on a crate with a step of 30 cm. If the angle of inclination of the roof is more than 15 °, a distance between the bars of 60 cm is sufficient. For NS-15 corrugated board, this indicator is equal to 50 and 100 cm, respectively, depending on the angle of inclination.

Cutting of corrugated board

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To begin with, most manufacturers strongly discourage the use of a grinder for these purposes. After all, when using abrasive discs, due to the strong heating of the metal being cut, the protective polymer layer of the corrugated board can melt. Accidentally falling sparks can also damage it.

The use of the grinder in practice is still possible. But only when using special discs of small thickness (1.0-1.6 mm) designed for cutting metal. The teeth in them are made of hard alloys. It is better to choose a larger circle diameter. Otherwise, when cutting sheets with a large corrugation height, its lower corners will have to be cut.

Hand circular saw

Another way to cut is to use a hacksaw. Cuts when using it are neat, even, without jagged. But a large number of sheets with a hacksaw cannot be processed. Yes, you can only cut in a straight line. Metal shears are used mainly for cutting across the corrugation.

A good tool for cutting corrugated board with a wave height of up to 25 mm is an electric jigsaw with fine teeth. It is necessary to work at the highest speed, making reciprocating movements. The tool is tilted along the sheet.

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Sufficiently even cuts in a straight line are obtained using a circular saw with a special disk, equipped with victorious solders. It can do a lot of work in a short amount of time. To protect against overheating, the tool is set at low speed.

To protect the cut lines from corrosion, they, as well as accidental scratches, are best covered with enamel. It doesn't take that long to do it. And the cost of such coverage will be minimal. As a result, the roof will last longer.

Screwing in hardware

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The correct force for screwing in self-tapping screws

Let us consider in detail how to fix the corrugated board on the roof with self-tapping screws:

Unlike slate, which is attached to the upper wave, self-tapping screws are screwed into the metal profile only to the lower ridge. Otherwise, deflections are formed on the material, which are clearly visible from afar. Plus, under the weight of snow, the self-tapping screw will not tear out of the tree
At first, the screws are not completely screwed in, but only “baited”. They are finally pulled together only after the alignment of the sheets.
The distance between the fasteners depends on the type of profiled sheets and the planned wind load. On average, 10 pieces per sq. m. The general rule is that sheets located on the edge are fixed with a large number of self-tapping screws. On the bottom and top of the roof they are placed more often - through a wave
On the rest of the sheet, proceed as follows. In places of overlap, 2 self-tapping screws are installed. The overlap of each next sheet is fixed on the side and along the bottom edge. In the rest of the section, the screws are placed through the wave in a checkerboard pattern
In areas with difficult weather conditions (winds, hurricanes), professional sheets are fixed along the bottom and top of the roof more often, in each wave. On the rest of the sheet, the number of self-tapping screws also increases.
The ridge bar is screwed every 30 cm
How to fix gutters to the roof under corrugated board? If a dripper is provided in the roofing system (a corner strip passing along the overhang of the roof), it is fixed even before the batten is installed on top of the waterproofing
Self-tapping screws must be located strictly at 90 ° to the surface. Their length is selected in such a way that they enter the wooden block of the crate by 3-4 cm. Depending on the type of corrugated board, it can be 4.8-6.3 mm
It is not necessary to tighten the fasteners tightly. There should be about a millimeter between it and the profiled sheet. Otherwise, during the thermal expansion of the material during temperature changes, cracks will appear in it. Plus, a tightly screwed self-tapping screw will pinch the rubber gasket. Due to the stress effect, cracks will quickly appear in it, through which water will begin to penetrate into the cracks.
Installation of the wind bar

It remains only to figure out how to fix the additional elements of the roofing corrugated board on the roof:
1. In order not to walk on the profiled sheets once again, the strips at the junction of the slopes begin to be fixed already when the profiled sheet is already laid on one of them. When laying the second slope, the sheets will simply be slipped under the bar, and then fastened
2. It is allowed to fasten the strip after the installation of adjacent slopes. The advantage of this method is the control of the ventilation gap on the ridge and the ease of installation of barrier elements to protect against insects and birds. But the likelihood of damage to the surface of the sheets during repeated walking increases.
3. Unlike sheets, planks are fastened in such a way that the hardware falls into the crest of the wave of the sheet lying under the plank. Skate elements are screwed in the same way
4. In the area of \u200b\u200bthe ridge, it is better to lay a porous sealant for corrugated board that repeats the shape of the waves. It is able to breathe, that is, to pass vapor, while it well protects the under-roof space from moisture, wind and dust.
5. On the gables, do not forget to install wind pads - they will protect the roof from the damaging effects of the wind. They are fixed in increments of 20 cm.
Many people confuse the methods of fastening slate and metal profiles. Indeed, the slate is attached to the upper ridge. This is done so that moisture, flowing down the wave, does not get through the hole into the under-roof space. Self-tapping screws are protected by a rubber gasket, and there is no such danger.

The fastening of corrugated board should be more durable - after all, unlike heavy slate, metal sheets have a fairly high windage.