What kind of corrugated board to use for the roof

Previously, the most popular material for blood was traditionally considered slate, but today it is surely replaced by corrugated board, which has excellent technical and aesthetic characteristics. To know which corrugated board to use for the roof is best, you need to consider its different options.

This roofing material can be chosen in terms of color and thickness, as well as the size of the sheets, that gives a distinct advantage over the traditional slate coating. In addition, it has a relatively small mass, and thanks to the coating of the material with special compounds or the colored polymeric protective film - is characterized by a rather long service life.

main advantages corrugated

Profiled sheeting is increasingly chosen by the owners of houses and cottages as a roofing material, as it has great advantages over other kinds of coatings. Its positive qualities include:

• The ecological purity of all components roof, - this is one of the most important advantages of this material.
• A variety of colors allows you to achieve harmony in the design of the exterior of the house - this criterion for many house owners is also not in last place.
• The choice of various protective coatings for steel sheet and finishing of the material . if necessary you can purchase profiled sheeting and without polymer protection.
• The affordable price of roofing material, which for many is the determining factor when choosing.
• The 12-meter length of the corrugated sheet allows covering the entire length of almost any roof slope without horizontal joints.
• The ease of in the installation, which you can hold yourself with the invitation of only one assistant.

What kinds of corrugated board are used in construction

Before buying for profiled sheeting, it is necessary to familiarize yourself with its existing varieties, as it is used not only to cover the roof, but also to install fences, gates and even light wall structures.

1. This material can be marked as follows:

• The letter "H" denotes the load-bearing roofing material used for roofing or flooring ininterfloor overlappings.
• " NA ", ie .a universal option that is used not only for roofs, but also for wall sheathing, as well as the installation of fencing.
• The third grade of corrugated board is designated by the letter "C", that is, only the wall material.

2. In addition to this , the material is distinguished by technical characteristics that relate to the thickness of the metal, the height of the wave, and also the parameters of the curved trapezoidal profile.

It is important to take into account that the height of corrugations and the thickness of the metal basically determines the rigidity of and the strength of of profiled sheet, the higher they are, the is more rigid material. Produced with a profiled sheeting having a wave height of 10 to 114 mm.

The thickness of the material can vary between 0.1 and 0.8 mm. It also directly affects the strength of the material.

3. Another one, an important parameter in the choice of corrugated board is the type of protective coating.

• For covering the roof, a galvanized profile sheet may be recommended for use, since it is not only affordable but also suitable for this purpose in quality, but also has the ability to reflect the sun's rays, therefore less heat on hot summer days. However, for reasons of decorativeness for residential buildings it is used infrequently, but mostly it is used to equip the roof of garages or outbuildings.

Galvanized on steel stainless steel with sides, electrolyte process with is hot-cured.

• In addition to galvanizing, aluminum-silicon coating is applied to thin steel sheets. This gives them special resistance to negative external influences. In addition, such sheets are robust and with the long-term operation.
• A combined aluminum-zinc coating is used to coat steel cold-rolled sheets. Its service life is less than that of the previous one, since it has a lower strength and resistance to aggressive external atmospheric and humidity effects.

4. If the roof is chosen not only for reliability material, but also as a decorative element of the exterior of the building, then there is the opportunity to purchase a corrugated board with a polymeric color coating. Its quality depends on the starting polymer:

• Polyester gives corrugated board a good decorative effect, but, unfortunately, the coating is short-lived and is prone to peeling off the metal substrate.
• Coating on the initial polymer - polyvinyl difluoride is considered to be the best quality roofing material. It has the most high characteristics for strength and resistance to ultraviolet and chemical effects. Therefore, the corrugated board covered with this material is quite expensive, but it has the longest period of operation, thereby justifying its high price.
• Pural can be called analog polyvinyl difluoride , as it has very close to it properties. Advantage of the coating of corrugated board made on its basis are rather high operational parameters, and at the same time - is more "democratic" price.

5. The scheme for the structure of high-quality corrugated board is as follows:

One of the anticorrosive coatings mentioned above is applied to the steel corrugated sheet. Then is applied to the with a protective chromate layer that provides high adhesion for the subsequent layers of the .

Next, the sheets are primed and then one of the decorative polymer coatings is applied. The colors can be different, therefore , choosing a roof, it is always possible to choose its in color to the shades of the walls of the house.

6. The connection and fixing of corrugated sheet sheets on of boards is done as follows.

• Special self-tapping screws are used for fixing, which are selected for the color of the flooring.

• For their screwing in the corrugated board in the right place, a hole is pre-drilled. Then into it using a special hexagonal nozzle on the screwdriver rt in is handled by the screwdriver.

Video: a few tips for choosing a high-quality corrugated board

Video: an important nuance when choosing a corrugated board

Sandwich panels made from corrugated board

We use corrugated board for the production of sandwich panels that are great for creating insulated roof slopes, as well as for facing carcass walls.

are especially convenient for work. Sandwich panels consist of two sheets of corrugated board and a thermal material laid between them. As thermal insulator , basalt mineral wool, polyurethane foam or expanded polystyrene can be used. For the roof, panels are used that have on the outside the load-bearing profile sheets with high waves reaching 140 - 160 mm, and on the inside - whether straight _ is smooth, it is possible to use a wall type.

In addition to two-layer sandwich panels, also produces three-layer variants designed specifically for the interior design of the attic. The design of the three-layer panels looks like this.

The advantage of this combined material is that it can solve three problems that arise when installing the roof - this insulation, sound insulation and reliable roof.

If for a roof the usual thin professional flooring is used all is equal it is necessary to do roof insulation, especially in houses which are located in cold regions of the country. And sandwich panels will get rid of additional measures, as they will perfectly cope with all the tasks that you need to solve when building a roof.

On panels designed to cover the roof, necessarily there are special locks that help to connect the two panels. Most often they represent a single wave of corrugated board without insulation material.

The positive qualities of this roofing material include:

• efficiency - in the sense that one action "kill t t rex hares";
• lightness mounting;
• heat resistance, especially if panels with mineral wool are used;
• immediately addresses the issue of not only the external roof covering, but also the interior trim of the attic;
• a small mass, which reduces the load on the bearing walls .

In addition to using sandwich panels to cover the roof, they are also used for warming the walls of industrial, residential and household buildings, built of different materials.

Influence of the roof slope on the calculation t t of the required quantity of the corrugated board

When selecting the corrugated board it is very important to take into account the slope of the roof slopes, as it is necessary to ensure a good drainage of water during the summer precipitation and abundant snow melting. From the angle of the slope depends on the size of overlapping adjacent sheets on each other to be done, if the roof is covered from the ridge to the overhang not with one single sheet, but composed of several.

• For example, if the slope is up to 10 degrees, then the sheets lay the overlapping the by 300 mm and, in addition, to avoid leakage, in addition to the waterproofing, overlapping sheets are coated with a sealant.
• For inclines of 10 to 15 degrees, the overlap must be at least 200 mm.
• With a slope of 15 to 30 degrees, the overlap can be reduced to 170 mm. If more steep slopes are provided, then even 100 - 150 mm will suffice.

The recommended roof slope for the flooring of this roofing material should be at least 20 degrees. In extreme cases, when the already finished roof overlaps, and to remodel the its is impractical, the slope should be at least 10 degrees. In this case, as mentioned above, the joint must be greased with a sealant.

In addition, it should also be borne in mind that if the roof slope is small, up to 10 degrees, then the material and width should fit the overlapping the not by one but by two waves.

Mounting of roofing corrugated board

• . crate must be installed under roofing material. Its step also depends on the slope of the ramp. boards are covered with a continuous plane if the roof has an small slope ramp - up to 10 degrees. The greater the angle, the wider the distance between boards .Usually on slopes of average steepness it is 450 mm, with corners above 30 degrees - 600 mm.
• The lath is stuffed with onto with asphalt waterproof film , which is fastened to the rafters with thin slats .All wood used for roofing should be pretreated with antiseptic compounds.
• Perpendicular to rails, slats are packed with the selected pitch guide rails , which will form the basis for the roofing from the corrugated board.
• Before starting the installation, it is necessary to carry out the test measurements of the skew diagonals. If their length differs, then they need to be aligned by adding additional elements to the crate .
• Mounting of sheets starts from the bottom end of the roof if several sheets are used for each vertical row. Continue stacking from right to left or vice versa. Having reached the opposite end of the roof, it is necessary to return to the edge from which the previous row was laid. Another option is to stack the sheets stepwise, in the sequence shown in the picture:

• The first sheet is not fixed immediately - it is first screwed onto one screwdriver so that it can be accurately leveled with the second sheet in wave and edging.
• After plating the second sheet overlap the to the first, they are fastened together to deepen the wave in steps of 350 - 400 mm.
• Screws are not tightened too tightly, otherwise the metal under it can be deformed.
• It is not recommended to step on the fixed corrugated board, in order to avoid its deflection. It is best to provide for the work a special ladder, which is fixed to the horse to the to the lynx, and is rearranged as needed.

Video: how to install the roofing profiled sheeting

Estimated cost of corrugated board

TSE on this material may vary depending on the regions of the country. Of course, the influences the for this factor and the technical characteristics of the corrugated board:

• thickness of the sheet metal base;
• material and quality of decorative coating;
• marking of corrugated board according to its designation ( wall or roofing);
• presence of insulation on sheets;
• usable area of ​​the sheet;

Tse on the material ranges from 150 to 500 rubles per square meter.

Video: what determines the price for the corrugated board

After the owner of the house determines the type of corrugated board he needs - thickness, wave height, coating quality, color and , ., It is necessary to make a preliminary calculation ,relying on the dimensions of the roof, the corners of the its ramps and the linear parameters of the commercially available sheets. Only after this, you can go to the store to place an order for the right amount of material.