How to cover the roof with a metal profile? The technology by which the profiled sheet is laid on the roof is not very complicated. The only thing that is required for this is to know the necessary features and rules for working with this material. It is not difficult to fix the corrugated board on your own, regardless of the type and configuration of the roof.
Do-it-yourself metal profile roof, as already noted, is mounted in compliance with the necessary technology and basic rules. Let's take a look at them.
First you need to make a high-quality crate, which will be durable and reliable, and on which it will fit metal profile for your roof.
Your attention! If the roof is gable, then the installation of the roof starts from the end, if it is hipped, then from the center of the hip. You also need to pull the cord along the cornice, along which the metal profile will be aligned. By the way, it is better not to align the flooring along the end of the slope.
The fastening of the metal profile on the roof should take place in the area of \u200b\u200bthe ridge to the bottom of the crate for every second wave. If fastening occurs at the end edge, then fastening is carried out along the bottom of the profile in each bar located horizontally.
After that, the middle must be fixed with self-tapping screws in a checkerboard pattern. For reliable fastening, it is necessary to screw in 4-5 self-tapping screws per square meter.
It should be noted that the metal profile is attached only to the part of the wave located below, unlike slate.
About steel roofs
A profile sheet for a roof with long slopes is made using the method of building up sheets that have an overlap of about 20 cm. The sheets are fastened simultaneously by nailing to the crate for each wave.
There are two methods that are most often used to make multi-row laying of decking from a profiled sheet:
- First you need to make a block of four profiled sheets. To do this, you need to lay the first sheet on the bottom row. Another sheet is attached to it from above, which will be the first in the second row. Another sheet is fixed on the bottom row, the same is done in the top row. Thus, four sheets are obtained on the roof. Then, next to it, with the help of an overlap, another of the same block is installed, and so on until the entire installation is completed.This method is most often used for roofing from a metal profile with a drain or drainage groove.
- How to perform roof decking installation another way? A block is arranged, consisting of three sheets, which are stacked as follows: the first row is made of two sheets, which are stacked and connected to each other. Then another sheet is attached to them, which is the first in the second row. After that, the block is aligned parallel to the cornice and fixed. Near it, another block is attached with an overlap, and so on until the very end. This method is used for fastening profiled sheets that do not have a gutter, since all sheets in the first row are closed with sheets of the next row.
Roof slope
When mounting roofs from a profiled sheet, you need to know the answer not only to the question of how to cover the roof with a metal profile, but also what angle of inclination the roof has.
In the event that the roof has a slope of less than 14 degrees, then adjacent sheets should be laid with an overlap of at least 20 cm. If the angle is increased to 15-30 degrees, the overlap can be reduced to 15-20 cm.
If the slope of the roof from corrugated board with your own hands exceeds 30 degrees, it is allowed to make an overlap of 10-15 cm. If you have a generally flat roof, the angle of inclination of which is less than 12 cm, then additional sealing of horizontal and vertical overlaps with silicone sealant will be required.
Directly mount
It is best to fasten profiled sheets with special roofing screws to structures made of wood.At the end of such self-tapping screws there is a drill along with a polymer gasket. It is desirable that the self-tapping screw has a size of 4.8 by 35 mm.
In order to fix the skate, self-tapping screws with a length of 80 mm will be needed. When mounting such sheets, one should not forget to perform vapor and waterproofing, as well as provide a gap so that ventilation of the space located under the roof can be carried out.
It is worth noting that with constant heavy rainfall, damage to the roof can occur if it was incorrectly laid initially. To avoid this and not engage in constant repairs, you need to immediately answer the question of how to properly cover the roof with a metal profile.
Let's talk about why metal profiles are used for roofing. This material is made from steel sheets that are coated with a polymer and galvanized coating for protection.
The profiles acquire the required rigidity after rolling, carried out at different heights and configurations. It is noted that corrugated board is much stronger than analog wall materials.
The material is able to resist different loads due to the presence of additional stiffeners. Profile height can be higher than 20 mm. In order for the work to be done correctly and quickly, you need to do a few things.
So, how to cover the roof with a metal profile? Several rules.
- The slope of the roof has already been discussed earlier. It must be measured out very carefully, since it will depend on how strong the structure will be, and also whether there will be an unpleasant outcome.
- Then you need to calculate how many sheets you need. You also need to decide whether you need separate plates.Only after everything is taken into account, it will be possible to start preparing the material for work.
- After that, you need to pick up the sheets of the desired length. It is desirable that they be the same length as the slope, so that you do not have to carry out unnecessary work. In this case, it must be remembered that the length of the flooring should be 4 cm longer than the length of the cornice.
- Before starting installation, you need to check how flat the roof is. After that, the roof is covered with a layer of waterproofing, which will help the roof to serve without leaks for a long time.
- The next step is to lay out the rails, thanks to which air circulation will be achieved between the waterproofing and the corrugated board. It will also help protect the material from rotting and mold.
It is worth noting that profile iron for the roof is a very slippery material, so you need to be very careful when working with it at a height.
Now you should not have any questions about how to cover the roof. The main thing to remember is that in this case you need to think through each step in advance and complete all of the above points.
Otherwise, you will have to deal with roof repairs quite often or fork out for a new roof.
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