To protect the roof today, a wide variety of materials can be used. One of the most popular, of course, is a metal profile (corrugated board). It is made by cold rolling from steels of high grades. If you wish, you can make a roof from a metal profile with your own hands, since one of the undoubted advantages of this material is ease of installation. Used corrugated board can be for roofs of any size and configuration. Today, such roofs can be seen everywhere.
What is corrugated board
A profiled sheet is a plate of rather thin metal (from 0.5 to 1 mm) coated with a polymer layer. Its surface is made in the form of waves. The dimensions of the metal profile for the roof can be very different. When choosing a type of material, first of all, you need to pay attention to the height of the wave and the thickness of the metal used to make it.
Main advantages of corrugated board
To the mainThe advantages of the metal profile, in addition to the ease of installation of sheets, include:
- light weight (from 3 to 20 kg);
- fire resistance;
- ecological cleanliness (the metal profile is completely safe for human he alth);
- durability (sheets of this material are absolutely not afraid of exposure to ultraviolet radiation, temperature extremes, acid rain, etc.);
- cheapness (corrugated board is one of the most inexpensive materials today);
- aesthetic appeal;
- high strength;
- reusable.
Disadvantages of metal profile
The disadvantages of this material include primarily noise. However, when using a sufficiently thick heat-insulating layer, which in this case can also be considered as noise-insulating, the consequences of such a disadvantage can be reduced to almost zero.
If the outer decorative layer is damaged, corrosion may develop on the sheets. Some disadvantage can also be considered that, when arranging a roof from a metal profile, you need to carefully monitor that the joints between the elements are sealed as much as possible. Otherwise, the finished roof will leak.
Varieties of material
If we talk about the scope, then there are three types of metal profiles:
- Material grade "C". Used for wall finishing.
- Professional sheet brand "H". Has the higheststrength characteristics and can be used for roofing.
- Material brand "NS". Can be used for fences, wall cladding, and roof protection.
Actually corrugated board is the cheapest type of metal profile. In addition to it, there is also a metal tile - a very aesthetic and practical material. Roofs covered with it look just great. Thus, corrugated board and metal tiles are the main types of metal profiles for roofing.
The main stages of work when installing this type of roof
Installation of a roof from a metal profile is carried out in several stages:
- rafter system device;
- vapor barrier installation;
- installation of thermal insulation material, with mineral wool being most often used;
- installation of waterproofing layer;
- crate device;
- installation of the drainage system;
- installation of metal profile sheets;
- sheathing of rafters from the side of the attic.
Steam, hydro and thermal insulation in this case is arranged in the same way as under any other roofing material. The crate is stuffed taking into account the dimensions of the metal profile sheets.
Gutter system installation
Before starting the installation of a metal profile roof, it is advisable to arrange a drainage system. At the first stage, the gutter holders are fixed to the crate. The edge of the latter should eventually be located about 3 cm below the edge of the future roof. ATotherwise, deformations are possible when snow melts in winter. After the holders are installed, a gutter is inserted into them. Next, a cornice strip is attached to the crate. Its installation is carried out so that the edge of the gutter is blocked. Also, on top of the cornice strip, you will need to bring the edge of the waterproofing film.
Calculation of a roof from a metal profile
Do-it-yourself metal profile roofing will be arranged with cost savings if the necessary calculations are made. This plan primarily takes into account:
- Number of elements in a horizontal row. To do this, pre-measure the length of the roof slope. Of course, respectively, in the horizontal direction. The resulting figure is divided by the width of the sheet. The length of the overlap between the elements is also taken into account.
- To calculate the length of the sheets and the number of rows, you need to add the length of the overlap (vertically) to the length of the slope, as well as the length of the overhang of the eaves.
In order to find out how many self-tapping screws you need, you need to calculate the area of the future roof and multiply the resulting figure by 6.
Preparation of tools and materials
Before proceeding with the installation of the roof, it is necessary to prepare the tools. On hand should be:
- building level and plumb line;
- metal shears or jigsaw needed for cutting sheets;
- electric drill;
- pencil and square;
- screwdriver;
- self-tapping screws.
The corrugated board itself must be transported and lifted to the roof with the utmost care. Otherwise, the protective polymer layer may be damaged.
Installing sheets on ramps
Now let's see how do-it-yourself metal profile roofing is done. Installation of sheets start from the bottom. They are attached to the crate with self-tapping screws at the bottom of the wave. This will ensure the reliability of the installation. In this case, the overlap must be carried out for at least one wave. For one 1m2 roofing there should be at least 6-7 self-tapping screws. The horizontal overlap (between rows) should be about 20 cm.
Gable lining
When calculating the material required for facing the pediment, it is taken into account exactly how it will be laid. The most economical is the horizontal mounting method. In addition, in this case, the house will look more aesthetically pleasing. When calculating, it is worth considering that about 10–15% of the material is spent on cutting.
For the pediment, wall corrugated board of the brand “C” is quite suitable. You can also use the material "H" and "HC". After performing heat and waterproofing, a frame of wooden slats is mounted. They will first need to fix the windproof film. The profiled sheet is cut using a hacksaw or a jigsaw.
When arranging a roof from a metal profile, you need to be extremely careful in terms of the possibility of damage to the polymer coating. Otherwise, the construction service lines will be significantly reduced, since the elements will begin to rust over time. Therefore usefor cutting sheets grinder is not recommended. To fasten the cut profiled sheet to the frame, you should start from the bottom corner. All elements are overlapped.
Installing the skate
The installation of a metal profile roof also includes the installation of a ridge. The junction of the slopes at the top is closed with a ready-made element, which can be purchased simultaneously with the purchase of sheets. The skate is made from the same material as the main elements. It is needed to prevent water from getting under the sheets. Laying in this case should be started from the side opposite to the direction of the prevailing winds in this particular area. Ridge elements are mounted with an overlap of 15-20 cm into the ridge in increments of 20-30 cm. Self-tapping screws are also used for fastening.
In the event that the angle of inclination of the roof slope is small, a special sealant should be placed under the ridge elements, which can also be purchased at a hardware store. There should be a small ventilation gap between it and the ridge.
Install the valley
When mounting a roof from a metal profile, it is necessary, among other things, to correctly install the valleys. In this case, good sealing is very important. A valley is a gutter that enters the internal inclined intersections of a slope. It is mounted on a continuous crate arranged on both sides.
Horizontally, the elements are connected with an overlap of 10–15 cm. The joints are necessarily treated with sealant. ForIn order for the valley strip to better adjoin the roof, a special self-expanding sealant should be used.
At the moment, it seems more than appropriate to use such modern material as a metal profile to protect the roof. Installation of the roof in this case can be performed in a short time and without the involvement of professionals. For little money, the owners of the house will receive reliable protection of its internal space from all adverse environmental factors.
