... flame-retardant Perforated FSK facing,Foil Insulated material widely for roof structure. Features:to be sealed on glass ... , or to be used as sound/heat insulator for high-rise buildings and hotels, or works as ... , easy to laminate, durable Specifications: a) Foil:7μ b) 3-way scrim c) PE d) Kraft: 50gsm,55gsm3) Roll ... Roll length: 60,120, 300, 500, 1800, 3000m Perforated Foil Insulated material