Asbestos cement or metallic smoke pipes demand careful fire-prevention insulant. Wooden surfaces of attic flooring can be plastered, closed up thin plates of sheet metal or asbestos, to paste a foil, to treat polymers (phenolic, carbamide, furan), organosilicone solutions. The phosphate coating applied on a surface harden and become fireproof.
In drawing the scheme of protection of a ceiling from heats is shown: 1 – a refractory material; 2 – slate; 3 – a metal sheet; 4 – wood.
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