Polykrov – rolled material for the device of the top layer of the roofing carpet
Polykrov is a bituminous-polymer welded roofing material based on fiberglass (glass fiber, polyester canvas) for the top layer of the roofing carpet.
The upper protective layer is a coarse-grained dressing, the lower protective layer is a film.
Polykrov contains a significant amount of bitumen-polymer binder, which makes it possible to produce roofing without the use of hot bituminous mastics.
Laying of polycrop is carried out according to the technology of mastic-free gluing – by melting the surface with the flame of a gas-air burner.
Roll width – 1±0.01 m.
Roll length 10 m.
Roll area 10±0.5 m2.
Stored on pallets of 25-27 rolls
|tensile breaking strength for material based on fiberglass and polyester, N, not less than:||500|
|tensile strength for materials based on fiberglass, N not less than:||300|
|relative elongation at break for materials based on polyester, % not less than:||30|
|elongation at break for glass-based materials, % not less than:||2|
|flexibility when testing a sample on a bar with a rounding radius of 15 mm, °C1||-15|
|heat resistance, °С||100|
|water resistance under pressure not less than 0.001 MPa for 72 hours||sustainable|
|weight 1 m2, kg||2,0-7,0|
|cover weight, g/m2||3000-7000|