Laminated non-combustible board for forming ductwork and...

E - Fixed Constructions – 04 – B

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E04B 5/48 (2006.01) B32B 3/28 (2006.01) E04B 9/00 (2006.01) E04C 2/32 (2006.01) F23J 13/02 (2006.01) F24F 13/02 (2006.01)

Patent

CA 2110430

The present invention relates to a laminated structural sheet material or board having a planar configuration and comprising a hollow core portion and metallic foil exterior surfaces especially useful for forming ductwork, headers and deflectors in heating and cooling systems. The sheet material is substantially moistureproof, smokeproof and fireproof for forming such ductwork, headers and deflectors in combination with ceiling and/or floor joists and flooring materials, the material or board being readily bendable and having scored edges for attachment to wooden ceiling and/or floor joists in planar or angled relation. 24

La présente invention porte sur des matériaux en feuilles ou des panneaux à structure multicouche ayant une configuration plane et comprenant une âme creuse et des surfaces extérieures en feuille métallique spécialement utiles pour former des conduits, des collecteurs et des déflecteurs dans des systèmes de chauffage et de refroidissement. Le matériau en feuilles résiste substantiellement à l'humidité, à la fumée et au feu pour former de tels conduits, collecteurs et déflecteurs en combinaison avec les solives de plafond ou de plancher et les matériaux de planchéiage, le matériau ou le panneau étant facilement pliable et ayant des bords à entailles pour fixation à des solives de plafond ou de plancher en bois, en relation plane ou à angle.

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