Roofing the house with your own hands. Roofing of steel sheets by yourself
Advantages made of galvanized steel roofing sheets are durability, lightness, increased resistance to mechanical influences, the ability to cover the roof of any configuration, even quite complex. The service life of such a roof is 18-25 years without major repairs.
The disadvantages of this type of roof are low fire resistance, as well as the high cost of its exploitation caused by the need for periodic painting. So, for the first time after installation, the roof of galvanized steel should be painted after a lapse of 8-10 years. Subsequent dyeing should be done every 2-3 years. Roof, made of black steel, requires painting every 2-3 years. The slope of the roof is 18-30 °.
The roof under the steel roof is made of bars having a section of 50 x 50 mm and a step width not exceeding 200 mm.
The block from the bars can replace the solid flooring from the boards, on top of which the first heat insulation layer is laid from the roofing material or roofing, and then the steel covering. This construction of the roof contributes to a significant increase in its service life and the insulation of the attic. The latter is especially important if the attic space is supposed to be used as an attic or the building is located in a cold climatic zone. However, when constructing such a roof, it is important to take into account labor intensity and significant financial investments.
Bars or plank boards are nailed in the direction from the eaves to the ridge.
Manufacture of roofing from steel sheets with own hands
The board, on which the joints of the prepared sheets( pictures) will be, are nailed after every four bars. In addition, it is necessary to make a solid flooring of planks over eaves of the roof and cornices, under valleys and razzhelobkami.
The width of such a flooring should be at least 600-700 mm.
A serious drawback of steel roofing is rapid corrosion under adverse atmospheric and environmental conditions. To increase the service life of the roof, the sheet material should be primed.
Priming is a simple operation consisting in the fact that the dust sheets, previously cleaned from dust, are covered with natural linseed oil on both sides. The oil is applied to the entire surface of the sheet evenly. In order to avoid omissions, a bit of grated bitches should be added to the clear and colorless varnish in a ratio of 10: 1.
A metal baking sheet is placed on the table, then a drying oil mixed with wax is poured into it. There is also put a steel sheet on the edge. Supporting it with one hand, the roofer with the other hand wipes the one side, then the other, with the rags soaked in linseed oil.
This operation is recommended to be performed with some pressure.
Upon completion, you should make sure that there are no leaks of drying oil and omissions on the sheet, only after that you can proceed to another sheet.
Before use, primed steel sheets should be dried well.
The next stage of the preparatory work includes the production of paintings, prefabricated parts of the ordinary coating and the preparation of sheets for wall gutters, cornice eaves, ends, etc.
The picture usually consists of 1-2 sheets with edges prepared for rebated joints.
Painting work is most conveniently carried out on a workbench having a length of 2 m and a width of 1 m, with a left corner in the form of a corner.
In appearance, folded joints can be divided into standing and recumbent, and by degree of compaction - into single and double.
To perform a single recumbent fold on a steel sheet placed on a workbench, a line of folding of the folded edge is marked with a scribe.
Then the risk is combined with the edge of the corner and with the help of a kayak make two beacons on the corners of the sheet. After that, the entire edge is bent at the risk, the sheet is turned over and dumped to the plane by the bent edge. On the second sheet do the same workpiece. The first and second sheets are connected to the lock and compacted with a kyanki.
With you was a site for the repair of apartments inexpensively.
