To protect the house from rain and snow, it is necessary to close it with a reliable roof. Roofing is designed to protect the interior from adverse weather conditions. Most often, for private houses, a gable or four-slope (hip) roof is used, but for small buildings, a single-pitch device is possible.
As a coating material, a multifunctional profiled sheet can be used. A self-made roof from a profiled sheet will allow you to complete the construction without unnecessary costs and damage to quality.
Pros and cons of roofing material
Installing corrugated board on the roof is a fairly popular way to complete the building's box. But before you choose this particular material, you need to familiarize yourself with its advantages and disadvantages. Knowing undesirable features, you can eliminate or smooth them out in time.
The advantages of the material include the following characteristics:
- a pitched or gable roof made of corrugated board with your own hands has a fairly low cost;
- installation technology and transportation do not cause difficulties;
- the technology allows for a high speed of roofing;
- light weight of material;
- strength and resistance to snow loads;
- high degree of waterproofing with proper installation;
- long service life;
- resistance to corrosion and fading under the influence of ultraviolet radiation;
- Fire safety;
- with proper fastening, high resistance to wind loads;
- the ability to use a sparse crate, which saves materials;
- the presence of many color schemes.
The list of positive characteristics is quite wide, but the roof from a professional flooring with its own hands has disadvantages:
- laying a metal sheet makes the roof too noisy in the rain;
- heating the surface in the sun;
- it is important to carefully lay the material, there may be a leak in the installation errors;
- the appearance of corrosion in areas with a damaged top layer.
If you do the job correctly, the above problems will not arise. To reduce the noise level, soundproofing materials are placed in the coating pie. Heating from the sun in this type of roofing is not higher than that of other materials. Unlike, for example, shingles, it does not lead to a change in the structure of the coating and its melting. If the installation technology is followed, there are also no problems with leaks, and to prevent corrosion, it is necessary to be careful when transporting and moving, to prevent damage to the profiled sheet.
Which professional sheet to choose for the roof
On sale there is a fairly large number of different types of corrugated board. When buying material for a single-pitched or gable roof, it is necessary to pay attention not only to color, but also to technical characteristics, namely:
- metal thickness;
- type of profile and its height;
- type of protective coating.
According to regulatory documents, three types of professional sheet are distinguished:
- brand “N” with high bearing capacity for horizontal structures;
- Grades “C” for vertical structures;
- brand "NS" - universal.
It is best to lay on the roof the material of brands “N” and “NS”. Mark "C" can be placed in a coating pie only on small buildings with a large slope of the roof (60 degrees or more).
It is also possible to lay the wall profiled sheet in a pie for a pitched roof garages. Also, when choosing, it is necessary to pay attention to the wave height of the sheet, it is indicated immediately after the letter in the marking. For pitched roofs, laying of grades H60 and H75 is possible. For flat, a professional sheet H75 or H114 is suitable. To choose the right one, you need to know the snow load and the pitch of the rafters.
Roof Design Options
Depending on the purpose of the subroofing space, the cake of a shed or gable roof may differ. When arranging a cold attic or technical floor, the design of the pitched roof will look like this:
- rafter legs;
- waterproofing;
- crate;
- roofing.
In this case, insulation is not required, since it is provided by the attic floor cake.
To equip the attic or a warm attic, it will be necessary to lay the insulation. The roofing cake from the profiled sheet will look like this:
- ceiling lining;
- lower crate;
- vapor barrier;
- rafter legs with insulation between them;
- waterproofing;
- wind protection;
- counter lath;
- upper crate;
- roofing.
The cake also largely depends on the chosen insulation. For example, laying mineral wool requires an arrangement of a layer ventilated by air. The thickness of such a gap should be at least 4-5 cm. This should be considered when choosing the thickness of the rafters and the counter-lattice. The insulated roof must satisfy the requirements of heat engineering, based on which, the thickness of the insulating material is selected.
Step-by-step styling technology
The device of the roof from corrugated board requires the implementation of preparatory work. They include measurements of the exact length of the ramp and the calculation of the required number of sheets. The roof of individual buildings can be single-pitched, gable or four-pitched. Most often, the length of the profiled sheet is taken equal to the length of the slope. In the calculations, it is necessary to take into account the overlap margin, which depends on the angle of inclination of the surface:
- 200 mm and more for roofs with a slope of less than 15 degrees;
- 150-200 mm for roofs with a slope of 15-30 degrees;
- 100-150 mm for roofs with a slope of 45 degrees or more.
After calculating the amount of profiled sheet needed to cover the roof, you need to check the tools that you may need. The device of the roof from corrugated board requires:
- rulers and pencil;
- building level;
- hammer and nails;
- tools for cutting metal (scissors for metal, hacksaw, circular saw, jigsaw for metal);
- riveting machine with steel rivets.
Having prepared all these tools in advance, you can easily lay a profiled sheet.
Crate Selection
The installation instructions for this element of the rafter system are quite simple. The lathing for a single-pitched or gable roof can be of two types:
- solid;
- sparse.
In most cases, both options are installed on the same roof. For the main area, the crate is laid sparsely, and such roof nodes from corrugated board as valleys, cornices, skates require laying without passes.
The lathing of a single-pitched or gable roof can be made of the following materials:
- a beam with a cross section of 50 by 50 mm;
board with a section of 32 to 100 mm.
Dimensions also depend on snow load and rafter pitch. In the first case, the crate is laid every 5 cm, and in the second after 10 cm (that is, after one). Possible laying more discharged.
All wooden roof elements must be treated with antiseptic compounds before starting work. After fixing the bars or boards (if there is no need for waterproofing), you can lay the roofing material.
Sheet Mounting Instructions
Installation of roofing from corrugated board requires attention to the reliability of fixing. Fixation of the sheets occurs with screws in the lower part of the wave. To properly cover the roof, you will need to prepare self-tapping screws with hex caps and neoprene gaskets. It is necessary to use special fasteners of increased strength, designed for metal.
This video provides instructions for laying a profiled sheet:
The fixing technology is quite simple: with self-tapping screws, the sheets are attached to the crate in the lower part of the wave so that for each square meter of coating there are 5-7 fasteners.
Also, before starting, do not forget to familiarize yourself with the important subtleties that professionals are talking about:
Before you cover the roof of the house with professional flooring with your own hands, you need to carefully study the issue. If the structure is mounted correctly, in the future there will be no problems with its operation. The roof will not leak and will last for many years.