FIELD: construction, particularly roofing material production and usage for different building structure roof erection.
SUBSTANCE: rolled roofing material comprises laminated protective layer and substrate layer made of rubber-polymeric mixtures having the same compositions and intermediate layer of non-woven polyester mesh. Rubber-polymeric mixture includes powder rubber having particle dimensions of up to 0.8 mm taken in amount of 30-50% by weight, low-density polyethylene in amount of 27-60% by weight, EVA in amount of 7-20% by weight and microwollastonite in amount of 5-14% by weight. Material production method involves simultaneously mixing rubber-polymeric mixture components in two extruders; forming rolled substrate layer blank and protective layer blank on two calendars at the same time, wherein extruders and calendars are built in the same production line; bringing the layers one to another for following layer lamination; arranging intermediate non-woven polyester mesh between substrate and protective layers.
EFFECT: increased resistance to temperature fluctuations and piercing.
3 cl, 2 tbl, 3 ex, 1 dwg
