Roof decking is used very often in our time, as this material is quite strong, light and resistant to atmospheric influences. But in any case, the installation of corrugated roofing must be done correctly and carefully. Although it does not cause difficulties.
First of all, you need to purchase high-quality roofing material. It should not have chips, scratches or other defects and damage. It is also necessary to measure the roof in order to know how long the roofing sheets should be. Naturally, it is also necessary to take into account the fact that the sheets should protrude slightly from below. In order to calculate the amount of corrugated board, it is necessary to divide the length of the cornice of the building by the useful width of the sheet of roofing material, and round the resulting value up.
Before installing corrugated roofing, it is imperative to equip the roof with waterproofing and ventilation. Waterproofing is provided by a special film that prevents moisture from entering the roof structure. You need to lay the film from the highest point(skate) overlap. The film is attached with staples or rivets to the rafters.
In order for the roof to have good ventilation, it is necessary to nail special strips to the waterproofing, which will provide free space between the roof and the waterproofing. Further, the ventilation element is arranged on the ridge, from where fresh air enters under the roof.
The coating cannot just lie in the attic, therefore, the installation of a corrugated roofing provides for the arrangement of a crate, the thickness of which depends on the parameters of the coating sheet. It should be noted that the board for the eaves should have a maximum thickness, since the very first sheets are attached to it. The selected material for the batten should be fastened to the rafters with galvanized nails, which are less susceptible to corrosion.
If the installation of corrugated roofing involves the use of additional support bars, then they must be installed together with the crate.
Further, the installation technology of corrugated roofing is not difficult. The first sheets of material are baited from left to right or vice versa. In this case, it is worth moving very carefully along the crate, as well as along the baited sheets. Sheets are stacked so that the anticapillary groove of one of the sheets is covered by the next sheet. Only after laying 2 sheets is their final fixing.
Also, the installation instructions for corrugated roofing provide for laying sheets along the cornice line withsmall protrusion.
The material is fastened with screws or self-tapping screws, on which there must be special rubber seals that prevent moisture from penetrating under the roof and damaging the corrugated board. Do not tighten the screws too tightly.
The skate is installed last. In this case, a sealant must be placed between the bar and the ridge. If necessary, end elements are installed on the ridge bar.
It should be taken into account that when working with corrugated board, it is necessary to adhere to the angle of inclination from 14 to 20 degrees.
If the material needs to be cut, it is better to do it with metal shears.
