| 摘要 |
FIELD: roof. ^ SUBSTANCE: invention is related to roll roofing materials. Roll roofing material contains upper protective layer, substrate and polymer reinforcing mesh arranged in between. Protective layer is made of composition that consists of polyvinyl chloride, dioctyl phthalate, chalk, titanium dioxide and thermal stabilisers. Substrate is made of composition made of polyvinyl chloride, dioctyl phthalate, chalk, thermal stabilisers and wastes of roll roofing material production. ^ EFFECT: invention provides for lower level of linear dimensions variation in process of material heating and high quality of material with increase of its thickness. ^ 2 ex |
