Guide
1
Before laid roofing , you must prepare the surface, which will then be laid roof.It should not have cracks or potholes.If necessary, they are sealed with cement mortar.
2
After drying screed surface is coated with a layer of primer.It will connect the remaining debris and make the surface smoother.
3
If you can not buy ready-made primer, then it is not difficult to make yourself by mixing approximately 4-5 liters of bitumen and 5-6 liters of kerosene.The filler may be used 1.5 kg of finely powdered chalk or talc.
4
Before you start working with roofing ohm coils are unwound and left in this position for at least a day.Laying roofing and should be carried out in dry and calm weather, when the ambient temperature is not less than
10ยบ C.
5
begin to lay roofing material with the lower part of the roof.On the prepared surface is applied a layer of adhesive or mastic.Starting from the center to the edges, fit the first web.In the case of blisters, cut and paste them again.Next sheet bonded with overlaps of at least 10cm.
6
roof to serve as long as possible when laying roofing and must take into account the angle of slope of the roof.If it is less than 15%, the layers should be at least 4-5 if more, then not menee2's.If, at some place adjacent to the roof wall or another structure, number of layers must be increased at least by two.
7
After the first layer is laid, it is necessary to make a break for 12 hours.It is necessary for the complete drying of the adhesive or mastic.It will also allow you to fix the flaws, if they were made during installation.It is worth recalling that overlaps to adjacent layers should be offset with respect to each other.
8
at the lowest layers of roofing material must be laid brand PSC.It differs in that it does not have a sandy powder.For the top layer, it is better to use roofing th marks RSC.With his laying powder in place of contact webs need to clean off, it will allow better glue adjacent webs.This will give extra chances for moisture seepage through the roof.