Thanks to such a universal material as corrugated sheeting, you can quickly and easily create a roof covering, façade structure or fencing. But before you start working with this material, you need to learn how to properly attach corrugated sheeting, select the appropriate fasteners and find out the main nuances of working with the material. Let's look at how to attach corrugated sheets to various surfaces.
Corrugated sheeting is a material that can be safely called universal. It is used in a wide variety of construction operations. Corrugated sheeting is used with equal success for the construction of canopies and light pavilions, the construction of fences and various enclosing structures.
Corrugated sheeting is also suitable for laying on the roof, for covering walls and constructing floors. Of course, for each of the listed operations, a specific brand of corrugated sheeting with the appropriate characteristics must be selected.
Fastening methods
The method of fastening the corrugated sheeting is selected depending on which design option is being installed.
Using self-tapping screws
In most cases, fastening of corrugated sheets is carried out using self-tapping screws. Usually a special type of screw is used - roofing screws equipped with elastic gaskets. The presence of this gasket ensures the waterproofness of the assembled structure, since the elastic material, pressed by the fixed screw, reliably seals the fastener hole.
When fastening corrugated sheets with roofing screws, it is very important to screw in the screws correctly. Firstly, the axis of the screw must be strictly perpendicular to the surface of the coating. Secondly, the screw must be tightened to such a level that the gasket under the head is slightly compressed.
If the degree of screwing is insufficient, the gasket does not fit tightly to the surface, and if the screw is “pinched,” the overcompressed gasket will be severely deformed. All of the above errors will lead to the mounting location being leaky.
Advice! When installing structures made of corrugated sheets, a screwdriver is usually used. To facilitate the work process, it is recommended to install a torque limiter on the tool using the selection method. But even in this case, the master must visually control the degree of screwing in of each screw.
Rivets
Another acceptable fastening option is combined rivets. They are installed using a special gun. When working with corrugated sheets, it is recommended to use steel rivets, but aluminum rivets are not suitable for this work, since they do not provide sufficient fastener strength.
Prohibited fastening methods
When working with corrugated sheets, it is prohibited to use nails. This fastening option does not provide sufficient strength. For example, if you nail sheets of corrugated sheets to the roof sheathing, then such a covering will not withstand even moderate winds.
It is prohibited to use all methods of thermal welding to attach corrugated sheets. The fact is that when the material is heated, the polymer layer covering the material melts, as well as the protective zinc layer burns out. As a result, a material lacking anti-corrosion protection is very quickly destroyed due to corrosion.
Description of fasteners
Basic fastener, which is used when performing installation work with corrugated sheets, is a self-tapping screw.
Advice! To fasten the corrugated sheeting, special self-tapping screws are used, made from a special grade of carbon steel - C1022. To ensure greater stability of the products, a zinc coating is applied to the screws; its thickness can vary between 12.5-15 microns.
To avoid the need to make holes in the corrugated sheet for installing screws, during installation it is recommended to use hardware whose tip is a drill. Such self-tapping screws may have a semicircular or hexagonal head, which is painted or coated with a layer of colored polymer. By selecting self-tapping screws with heads that match the color of the corrugated sheeting, you can make the attachment points on the covering unnoticeable.
Advice! Special self-tapping screws with colored heads and a drill at the end of the thread are marked with the letter “M”.
Self-tapping screws for installing corrugated sheets usually have a soft elastic gasket to seal the holes formed during screwing. But sometimes it is necessary to use screws with tin spacers, for example, when fastening ridge elements to the roof.
How is corrugated sheeting fastened when installing different structures?
Let's look at how corrugated sheets are fastened when laying the material on the roof and when installing fences.
How is the material attached to the roof?
To securely secure the corrugated sheeting to the roof, it is necessary to build a sheathing. During housing construction, the sheathing is usually assembled from wood. When constructing industrial facilities, the frame for laying corrugated sheets can be assembled from metal elements.
The spacing of the elements during the construction of the sheathing is determined depending on the type of corrugated sheeting used, namely, on the height of the profiling sheets, as well as on the slope of the roof slopes.
After the sheathing is ready, you will need to make a preliminary layout of the foxes. It must be remembered that the sheets must be laid with an overlap. Moreover, the width of the overlap depends on how steep the slopes of the roof are.
After completing the preliminary marking, you can proceed directly to fastening the sheets. Here are the basic rules for doing this work:
- Self-tapping screws should be screwed in only in places where the profile is lowered, that is, where the material fits most tightly to the sheathing.
- At the top and bottom of the sheet, it is necessary to screw self-tapping screws into each profile depression.
- When fastening sheets on the long sides, it is necessary to screw in self-tapping screws in increments of 50 cm.
- Self-tapping screws are screwed into the sheet area, allowing one wave to pass through. The screws are alternated in a checkerboard pattern.
- To ensure that the coating is as even as possible, it is not recommended to attach the sheets to the sheathing one at a time. First you need to assemble a block consisting of 3-4 sheets fastened together, and only then screw the block to the sheathing.
- How to collect blocks? To do this, a starting sheet is laid and after it is aligned with the ends, it is secured with one self-tapping screw, screwing it into the top of the sheet. Then the next sheet is placed next to it, laying it overlapping. After leveling, the sheets are connected to each other using short self-tapping screws or steel rivets. Similarly, one or two more sheets are attached to the block. Next, the block is leveled and secured to the sheathing.
How should corrugated sheets be secured when constructing fences?
- When constructing fences, a frame is first assembled onto which the corrugated sheeting will be attached. The frame is assembled from supports, which are installed in pits and concreted. Transverse logs are attached to fixed supports, which are placed in two or three rows.
- Before you start attaching the corrugated sheet to the frame, you will need to measure the assembled structure to make sure that there are no distortions.
- Begin to attach the corrugated sheet from the end part, screwing in self-tapping screws in increments of 50 cm.
- When constructing fences, sheets are usually installed with an overlap of one wave width.
- If necessary, protruding parts of the corrugated sheeting can be cut using a hacksaw or metal scissors. Tool with abrasive discs(grinder) is not recommended to use, since during the cutting process the protective layers are destroyed and rusty spots will soon appear on the assembled fence.
- The ends of the sheets and the corner joints of the fence are closed by installing special strips. The planks are matched to the color of the corrugated sheet and secured with self-tapping screws.
So, correct fastening of the corrugated sheet during assembly is a guarantee that assembled structure will serve for a long time, delighting owners with its reliability and attractiveness appearance.
Building a house is a very expensive undertaking. One way to cut costs is to do the work yourself. Of course, not all stages of construction can be carried out independently; many of them require the use of special tools or construction equipment. But work such as laying roofing can be carried out without the involvement of specialists. Let's look at how corrugated sheeting is attached to the roof.
Corrugated sheeting is a widely known material; it is used for a variety of purposes, from the construction of fences to the construction of floors. Corrugated sheeting is also used for laying on the roof. This option for roofing design is chosen by many private developers, since corrugated sheeting has a completely affordable price and is quite easy to install.
But in order for the assembled corrugated roof covering to last for a long time, you need to know the rules for handling this material. Let's consider how the fastening of corrugated roofing should be carried out, as well as the fastening of shaped elements used when equipping the main roof components.
Preparing the sheathing
Sheet corrugated sheets are laid on pre- assembled sheathing. It is very important to install this coating correctly so that the sheets lie flat and the fastening is secure.
The design of the sheathing depends on the type of corrugated sheeting used, namely on the height of the profile, as well as on the angle at which the slopes are located on a given roof. The flatter the slopes and the smaller the height of the sheathing profile, the smaller the spacing of the elements in the sheathing should be.
Thus, when laying corrugated sheets with a profile height of 20 mm on slopes with a slope of less than 15 degrees, it is recommended to build a continuous deck. For this it is convenient to use sheet material, for example, multilayer moisture resistant plywood. But you can also assemble a continuous flooring from boards; they are laid with a gap of 1 mm to prevent subsequent deformation of the coating due to changes in humidity.
When laying the same form of corrugated sheeting with a profile height of 32 mm on the roof, a grating is built with a distance between elements of 30 cm. When using material with a profile height of 44 mm, the spacing of the elements in the sheathing increases to 50 cm.
The thickness of the sheathing elements is chosen based on the consideration that you will have to walk on the roof during installation and subsequent use. Therefore, the structure must be able to support the weight of an adult.
Advice! As a rule, boards with a thickness of 32 mm are used for lathing; timber with a cross-section of 60 mm can also be used.
Methods and rules for fastening sheets of material
First of all, the scheme for fastening the corrugated sheeting on the roof must be determined. Yes, on gable roof it is advisable to lay the sheets in one row, ordering sheets of material equal in length to the length of the slopes, taking into account the width eaves overhang.
Advice! If the roof has a complex shape, then you will have to measure each slope separately and, in accordance with the results obtained, order sheets of different lengths.
However, single-row installation is not always possible. If the roof slopes are long, then it is more convenient to fasten the corrugated sheets in two rows, joining them along their length. At the junction of the sheets, the material is laid with an overlap of 10 to 25 cm wide, depending on the slope of the slope.
When wide, the sheets are also laid with overlaps. On flat slopes with a slope of up to 15 degrees, the overlap width should be two waves; on steeper slopes, the material is laid with an overlap one wave wide.
Hardware for fastening sheets
When conducting roofing works The corrugated sheet is fastened with self-tapping screws. Galvanized steel screws with hexagonal heads and elastic washers must be used.
The gasket is necessary to seal the fastening point, since when screwing in a self-tapping screw, the integrity of the material is compromised. The end of the roofing screws is made in the form of a drill, so before screwing in the hardware you will not need to drill holes with a drill.
Advice! So that when attaching corrugated sheeting with self-tapping screws on the roof, the work can be done more accurately, it is recommended to pre-mark the attachment points.
The caps of roofing screws, as a rule, are painted in the same colors as the corrugated sheeting. By choosing fasteners of a suitable color, you can make the fastening points almost invisible.
If the fastening of corrugated sheeting to the sheathing is always carried out with self-tapping screws, then the sheets in places of overlap can be fastened with both self-tapping screws and combined rivets 4-6.5 mm long.
To install rivets, you should use a special tool - a rivet gun. To install rivets, it is necessary to pre-drill holes in the material, and the diameter of the holes should be 0.1 mm larger than the diameter of the rivet.
Location of screws when attaching sheets
What is the scheme for fastening corrugated sheets with self-tapping screws? Recommended: 
- When fastening along the upper and lower edges of the sheet, place screws in each profile depression.
- When fastening along a longitudinal joint, it is necessary to place self-tapping screws in increments of no more than 50 cm.
- To achieve a better fit of the sheets in the overlap area, it is necessary to place the fastening points with an offset of 5 mm from center line. For the top sheet, the displacement is made towards the formed joint, and for the bottom - in the opposite direction.
- In the central part of the sheet, the screws should be placed in a checkerboard pattern, screwing them through one wave of the profile.
Fastening additional elements
- The cornice strips are installed before laying the sheets. They are fastened with self-tapping screws, spaced in 30 cm increments.
- Internal corners. These are the most vulnerable roof components, therefore, when arranging them, internal and external additions are used. Before installing the sheets, a lower valley strip is laid, which is fastened with self-tapping screws with a screw spacing of 50 cm. Sealant is placed under the outer sides of the strip. After laying the corrugated sheets at the junction of the main covering and the valley strip, the outer strips are screwed.
- Ridge elements. They are installed at the junction of the slope coverings. They are fastened with long self-tapping screws, screwing them into the profile raising ridge.
The main mistakes that beginners make
When fastening corrugated sheets on the roof, novice craftsmen often make mistakes. The most common of them:
- Fastening corrugated sheets with nails. A coating installed in this way will not withstand even average wind loads.
- Cutting sheets using abrasive wheels or gas burners. This cutting method destroys the polymer and zinc coating of the sheets and the material begins to quickly rust.
- When screwing in self-tapping screws, chips are formed. If it is not removed immediately, rusty spots will soon appear on the coating. To remove chips, it is recommended to use a soft-bristled brush.
So, correct fastening of corrugated sheeting on the roof will increase the reliability of the coating. Well-fixed material can withstand various climatic influences, including strong wind loads.
The final roofing covering is one of the most important elements of the building, which takes on the “blow” of all atmospheric phenomena - wind, rain or snow. Since corrugated roofing sheets have a complex wave-like shape, there are certain rules for attaching corrugated sheets to the roof, which are discussed in this article. You will learn what screws are needed for corrugated roofing, their fastening schemes and consumption per 1 m².
Correct fastening of corrugated sheeting on the roof with self-tapping screws
When installing the outer surface of the roof, a very important point is correct use fasteners In strong winds, the tearing loads on the finishing coating can be up to 600 kilograms per square meter. In addition, excessive deformation of the sheet when tightening the screw can lead to a violation of the tightness of the roof at the place of its installation. This often leads to the need to completely reassemble the roofing pie in order to determine the location of the leak and eliminate it. The first thing you need to understand is what kind of screws are needed for corrugated roofing. Not every screw is suitable for this, so you need to select special fasteners that ensure the force of pressing the sheet to the sheathing and the tightness of the fastening.
Select fasteners that match the color of the roof covering and are equipped with an elastic plastic sealing washer.
When screwing the screw, a screwdriver with tightening force control is used. The screw is installed in the cavity strictly perpendicular to the surface of the corrugated sheet; during installation, the surface should not bend inward. If there is a skew when screwing, the screw must be unscrewed, a wooden plug must be driven into the hole using PVA-M glue and the self-tapping screw must be installed correctly.
For the final roof covering, profiled sheet CH35 or CH45 is used. Accordingly, fasteners are used in the form of self-tapping screws with a length of 20 to 50 millimeters:
during installation into the depression sheet – 20 mm long;
during installation at the overlap point adjacent sheets – 50 mm;
for fastening ridge strip through corrugated sheeting - 50 millimeters or more, depending on the roof structure. In some cases, longer fasteners can be used.
When purchasing screws, you need to take into account a large percentage of their quality rejection. The main disadvantage of the screws is that the drill end is not sharp enough, which can lead to rolling of the edges of the holes and deformation of the sheet. The screw diameter is selected within the range of 4.8-6.3 millimeters.
Source stroitel-list.ruHow to properly install corrugated sheets on the roof
The roof is installed in a certain order, ensuring its strength and tightness.
Installation of individual sheets begins from the lower left end. On the first vertical row there is a gable overhang no more than 40 centimeters wide. But the sheets are not stacked in order, but in a checkerboard pattern, that is, the second will be the first sheet of the second vertical row, then the second of the second vertical row, then the second of the first. In this way, the slope of one side of the roof is formed, after which the installation of the second begins in the same order. The verticality of the rows must be controlled with a mounting cord.
The vertical overlap of the sheets should be at least 20 centimeters; horizontally, this figure depends on the design of the corrugated sheet. Under normal conditions, such an overlap is performed in one wave, in more severe climatic conditions - in two. The decision is made at the design stage depending on the climatic conditions in the construction region.
For a standard sheet 0.8x1.1, the distance between the screws is 0.5 meters, that is, there are 4 pieces per 1 m2. But you need to take into account that along the lower edge of the sheet of the first row of the roofing pie, fasteners are installed in each lower shelf.
The gable edges of the finishing coating are attached at intervals of about 250-300 millimeters. In addition, overlapping side, ridge and wind strips are attached with the same parts, increasing their specific consumption.
The average consumption of fasteners is taken to be 8 pieces per square meter, with 4 pieces 35 mm long, 2 pieces 20 mm and the same number longer, from 50 mm. But you need to keep in mind that this indicator directly depends on many factors:
roof structures;
sheet thickness finishing coating;
applied profile.
Video description
How not to attach corrugated sheets to the roof is shown in the video:
Fastening corrugated sheets with self-tapping screws on the roof is one of the the most important moments for the installation of the roof and this must be taken into account when installing it.
On our website you can get acquainted with the most . In the filters you can set the desired direction, the presence of gas, water, electricity and other communications.
Determining the amount of fasteners per sheet of corrugated sheeting
The easiest way to answer this question would be to simply count. If there are 8 screws per 1 square meter of roofing, and its area is: 0.8 x 1.1 = 0.88, it is logical to recalculate this way: 8 x 0.88 = 7 pieces, rounded. But in this case there is simply no point in calculating the specific consumption of fasteners; it is much easier to calculate the total roof area and use the generally accepted consumption rate per square meter. This value is always calculated when designing a structure. In addition, such a calculation is made taking into account the features and dimensions of the profile.
Installation of waterproofing and sheathing for corrugated sheets
The supporting surface for the finishing coating - the sheathing - is made from a board 25 millimeters thick or sheet materials like plywood, chipboard, OSB or other similar ones. The material is attached to the rafters with nails or self-tapping screws. Waterproofing is installed on top of the sheathing, most often roofing felt is used for this, but the use of thick polyethylene film is possible.
Video description
You can see how to install a profile from corrugated sheets in the following video:
Installation is carried out in the following order:
Board sheathing There are two types - sparse or continuous. The latter is carried out with a distance between boards of up to 5 centimeters; the sparse packing step provides for a distance between boards of up to a meter, depending on the format of the finishing sheets.
The boards are being stuffed, starting from the bottom edge rafter system horizontally.
Two or three boards in the ridge space are installed closely no gaps.
On top of the sheathing waterproofing is installed from roofing felt. The flooring starts from the bottom edge of the roof. The sheets are laid with an overlap of up to 15 centimeters, the joint is glued with construction tape or joined using bitumen mastic.
The main task of waterproofing is to seal the supporting base for the finishing coating and drain condensate from the under-roof space.
This coating structure is used when installing a “cold” roof. To make it warm, you need to form a roofing pie using insulation and vapor barrier films. The use of roof insulation reduces heating costs by up to 20-30%.
On our website you can find contacts construction companies who offer services roof design and repair. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.
Causes of roof leaks
This phenomenon can only occur as a result of installation errors or breaks in the insulating material. Even installation of waterproofing on the sheathing is also important. If swelling of the material is observed in certain places, leaks are inevitable, and primarily from condensation, even if the finishing coating is applied perfectly.
The second cause of leaks may be poor-quality cutting of sheets, leading to deformation and loss of flatness. roofing material.
Roofing installation
Fastening the corrugated sheeting with self-tapping screws on the roof, as mentioned above, is done from the lower left corner of the slope. The work is carried out in the following order:
First of all, along the lower edge of the sheathing drip is installed– a special strip for draining condensate from the under-roof space into storm water inlets.
First sheet laid on the sheathing parallel to the rafters, thereby forming the amount of overhang. For a standard sheet it should be no more than 40 centimeters.
Correct fastening of corrugated sheeting on the roof with self-tapping screws is carried out taking into account the above requirements - installation in a stream at right angles.
The second sheet is installed with side overlap in one or two waves, which depends both on the properties of the coating (thickness) and the operating conditions of the roof characteristic of the region of construction.
Further installation is carried out staggered until the slope is completely covered.
In the same way the second slope takes cover, after which wind strips are installed.
The last operation to be performed is installation of ridge strip, which finally forms the finishing coating of the roof.
Cutting corrugated sheets
If it is necessary to adjust individual cards to the installation site, use various ways. It should be noted right away that cutting methods may be different, but you should immediately warn against using technologies that lead to heating of the sheet, for example, cutting with a grinder. In this case, the paint coating peels off, leading to its further destruction in an accelerated manner.
You should use other available methods: hand or mechanical metal scissors or a jigsaw.
Which screws are suitable for installing corrugated roofing
For such a coating, special fasteners are used. In Russia, self-tapping screws for corrugated roofing are produced taking into account the requirements of GOST 17917-86. Distinctive feature Such screws consist of the presence of a drilling part at the front end, which allows drilling of the material during the process of tightening the screw. The second feature is that the head is hexagonal in shape, and the manufacturer’s hot stamp is applied to the end. There is also a support washer with a plastic spacer underneath it. (See Figure 2.)
The use of other fasteners, as a rule, leads to numerous leaks in the roof covering.
Conclusion
Despite its apparent simplicity, installing corrugated sheets requires certain skills and experience - starting with knowledge of how to properly “tie” cards together and ending with the skill of correctly screwing in self-tapping screws - so that they go to the required distance. That's why, installation work you need to trust professionals who will do them quickly, efficiently and with a guarantee.
Building a country house is a very labor-intensive task, but the result is worth all the effort. Partial or complete performance of the work yourself is in a good way save. The article will talk about laying the roof with your own hands. Let's look at how to attach corrugated sheets to the roof.
Characteristics of the profiled sheet
Profiled sheets (also called corrugated sheets) are a very common material in construction. Among its advantages are lightness, durability, strength, safety for environment, reliability, and ease of installation. The material is excellent for roofing, finishing works, as well as installation of fencing.
The profiled sheet does not need to be painted regularly; the color will not fade under the sun. Galvanized steel is used to make the material. Sometimes a polymer coating is applied over it. In appearance, the profiled sheet is similar to slate. Products are produced in many variations, differing in performance characteristics and sizes.
Material grades
Existing brands of corrugated sheets:
- “C” - used for the construction of small ceilings, the height of the corrugation ranges from 8 to 44 millimeters;
- “NS” - used as a roofing covering, the corrugation height is in the range from 35 to 44 millimeters;
- “N” - corrugated sheeting with reinforced stiffeners, used as a permanent roof, the corrugation height ranges from 57 to 114 millimeters.
It is best to cover the roof using profile sheets with a height of 20 to 60 millimeters, which have a special groove for draining liquid. The thickness is selected based on engineering calculations of various loads.
The product kit should include instructions on “How to properly screw a corrugated sheet onto a roof.” If it is missing, you should ask the seller for it.
For the owner country house It is important that the roofing covering is durable and also has a pleasant appearance. Therefore, when choosing a material, it is necessary to take into account climatic conditions region. For areas with high snowfall, it is worth buying a profiled sheet with a corrugation of 20 millimeters, and the roof slope angle should be made from 15 degrees. Profiled sheets with the designation “NS35” and “NS44” are intended for private construction.
How to screw corrugated sheets to wooden sheathing
Laying corrugated sheets is done with overlapping sheets, like other roofing materials. In this case, the spacing distance is determined based on the roof slope.
The amount of profile overlap for fastening corrugated sheets on roofs with different slopes:
- If the roof slope is no more than 14 degrees, a horizontal overlap of about 20 centimeters is made.
- For a roof with a slope of 15 to 30 degrees, the overlap should be from 15 to 20 centimeters.
- For a roof with a slope of more than 30 degrees, the overlap should be from 10 to 15 centimeters.
Profile sheets are laid parallel to the cornice. Parallel sheets are fixed with one self-tapping screw. In this case, it is necessary to take into account the amount of eaves overhang, which is calculated from the profile height.
Amount of eaves overhang:
- If the wave depth of the profiled sheet is 8, 10 or 20 mm, the overhang should be from 5 to 10 cm.
- In other cases - more than 20 cm.
To fasten profiled sheets, self-tapping screws with a length ranging from 2 to 25 cm and a diameter of 4.9-6.3 mm are used. EKT, Hilli, Fisher fasteners have drill bits. Such screws can be tightened without preliminary preparation. High-quality self-tapping screws contain special gaskets that protect the holes from liquid penetration.
Recommendation: when choosing self-tapping screws, you should take into account the length of the cylindrical thread. In high-quality fasteners, this indicator should be at least 5 mm greater than the width of the sheets being joined. An average of six to eight screws are used per square meter of roofing.
It is also worth remembering that to attach the corrugated sheeting to the sheathing you need to use rubber sealing washers. Self-tapping screws measuring 28x4.8 mm are screwed into the lower sections of the product. But the skate is attached to the upper “waves” (more details: “”).
Isolation device
You need to know not only how to attach corrugated sheeting to the roof with self-tapping screws, but also about correct device insulation - very important stage installation of roofing material. The fact is that moisture forms under the roof. Condensation gradually destroys the coating, which will require its replacement. Insulation helps protect the roof from moisture formation. The task itself includes installing heat and vapor barriers, as well as adjusting ventilation.
You can increase the service life of the roof if you place a gasket under the corrugated sheets that protects against the formation of moisture. It is preferable to choose a vapor-waterproofing membrane. It is mounted on large nails in increments of about 20 centimeters. You should start laying from the eaves, going towards the ridge of the roof.
The protective film is laid with a slight overlap (from 10 to 15 centimeters). You also need to maintain about 2 cm of slack between the rafters. The sheets are fixed in places where they overlap with double-sided tape.
Ventilation holes are located closer to the roof ridge. They are designed to allow free movement of air under the roof, preventing the formation of condensation. You will need to adjust ventilation ducts, a small gap under the roof, as well as the presence of ventilation grilles that are located at the ends of the building.
Tip: on protective film needs to be secured wooden slats, they are designed to remove generated moisture and liquid. All places must be securely fastened. This is the only way to ensure quality ventilation gaps. This completes the roof insulation.
How to properly attach corrugated sheets to the roof
Let's take a closer look at the problem of how to screw corrugated sheeting onto the roof. When installing the profile, you must remember one nuance: the sheets must be laid so that the bottom wave runs along the edge of the roof, and not the top. The capillary groove should also be directed upward. Logs are used to transport roofing material onto roofs.
Subsequent rows must be laid along the slope, but with a 10-centimeter overlap on the previous ones. In this way parallel sheets are lined up. When one slope is covered, you can move to another, the installation algorithm is the same.
To facilitate the installation procedure, you will need a small ladder, level with the length of the roof. It will be used to move people along the roof. If such a staircase is not available, you can buy it at a hardware or hardware store, or build it yourself. To do this, you need one longitudinal board - the base - and many small steps. The structure is fixed to the corner of the ridge.
To cover the roof ridge, you can use a galvanized strip or corrugated sheet, also fixed with self-tapping screws. When the installation procedure comes to an end, it is necessary to clear the roof of construction debris and shavings. Places where the corrugated sheet is scratched or cut off need to be touched up to prevent edge corrosion. After 3 months, it is advisable to tighten the screws. This is due to the fact that over time the fastening weakens.
Fastening corrugated sheets with self-tapping screws - possible mistakes
Possible mistakes and actions that should not be taken when laying corrugated sheets:
- Under no circumstances should corrugated sheets be attached to wooden sheathing using nails. They can fly off in strong winds; such a connection is extremely unreliable.
- Welding and gas cutting of profiled sheets is prohibited.
- When cutting profiled sheets, you cannot use a grinder. Friction will create high temperature, which will destroy the polymer coating with zinc. Such a profiled sheet will be susceptible to corrosion and will quickly collapse.
- Metal shears are suitable exclusively for longitudinal cutting of corrugated sheets. Cross cutting with such tools will result in deformation of the product. Correction of the resulting irregularities is very difficult task. And there is no guarantee that the deformation will be completely eliminated. As a result, the sheet will be unsuitable for installation.
Electric scissors and a jigsaw will do an excellent job of cutting. It is also used for these purposes a circular saw with large pobedite teeth.
Corrugated sheeting as a roofing material is everywhere replacing the usual asbestos-cement one. This is not surprising - the material is much more practical, cheaper, lighter, easier to install, and simply more attractive in appearance. If the profiles are selected correctly and all installation work is carried out in accordance with the manufacturers’ technological recommendations, then in terms of reliability such roofing is in no way inferior to other types of coatings. And some shortcomings are more than compensated for by its affordability and speed of roofing operations.
Another advantage is that any home owner can build such a roof if he has at least a little experience construction work. It is certainly difficult to do without helpers, but with two or three people the covering can be completely installed in a matter of days. Of course, to do this, you need to understand the nuances of the main operations - how to make the correct sheathing and how to properly attach corrugated sheeting to the roof with self-tapping screws. These are the questions that will be key in this publication.
Briefly about corrugated sheets
So, what is corrugated sheeting? This term is usually understood as profiled metal sheets, most often made of thin (up to 1 mm) sheet steel, widely used to create various enclosing structures in different areas construction. There are also products made of aluminum or even copper, but this is a very expensive pleasure, and there is hardly any need to consider them. Moreover, the principle of performing roofing work does not really depend on the material of manufacture.
