Roof repair materials are varied enough and are classified according to one of the following categories: bitum, bitum-polymer, polymer, mastics and so on.
For many years the conception of rolled roofing material was associated with rubberoid. It is still quite widespread in virtue of its low price and utility. The rubberoid roofing repair is very cheap. As a rule, the working process is conducted in the following way: rubberoid rolls are greased with bitum mastic heated in special kettles and are glued. At that the absolutely impermeable finish of a flat roof is created. At present rubberoid is used mostly for garage and household building roofs.
The old-fashioned rubberoid and resin gave place to rolled roofing materials of new generation and mastic. First ones are more resistant to mechanical loads, they are notable for low thermal-expansion coefficient, and mastic is able to resist critical temperature drops and doesn’t damage from frost penetration.
On the lower surface of this material a special bitum glue coating is applied that, when attaining certain heating-up temperature, provides perfect gluing to roof surface, and without any secondary stress. Roll roof repair solutions keep to improve, and today the maintenance-free exploitation period of such coatings can come to dozens of years.
The roof repair process with melting materials, in comparison rubberoid, is much more easier, without mentioning the remarkable cost cutting. The polymer adding to air-blown bitum heightens frost-, heat-resistance indications, flexibility, elasticity, crack and fracture formation resistance, abrasion resistance and external forces resistance.
Mastic for repair
Mastic can effectively replace roll materials. This is a viscous indiscrete mass. Applied to the roof surface, it fastens and becomes a monolithic coating. These materials can be divided according to the composition to bitum, polymer, bitum-polymer. Also, in addition, all manner of admixtures and solvents can be included. The coating, made up of mastic, is membranous in contradistinction from roll ones. It is used also as an adhesive composition for flooring and repair. It is not necessary to heat the present-day mastic (“cold-applied mastic”). According to the composition it can be of one and two component.
For the repair with your own hands you will also need appropriate tools – blowpipe, for want of it a torch-lamp can be used, sharp or cutting-out knife, an ordinary broom for rubbish removing, workwear. If you have to conduct these works urgently in winter, a shovel for snow removing from the roof can also be used.