E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
20/20.3
E04D 3/35 (2006.01) E04B 1/80 (2006.01) E04B 1/94 (2006.01) E04D 13/16 (2006.01)
Patent
CA 1148323
Abstract A heat insulating roof structure for an industrial building, in the form of an inter-purlin system com- prising spaced parallel purlins (10, 10A or 35, 35A or 45, 45A) having their base webs (14 or 41 or 50, 51) sheathed by a heat insulating sleeve (16, 17 or 53, 54 or 56, 57), thereby to provide lateral platforms on opposite sides of the purlin for the support of cross members (29 or 70) which form trays to support a layer of heat insulating material (31). In one form of embodiment the cross members are inverted tee bars (29), thereby forming open rectangularly framed trays for supporting the insulating layer. In another form of embodiment the cross members are closed tray bases (70) especially suitable for a vapour sealed system. In all embodiments the insulating sleeve assembly (16, 17 or 53, 54 or 56, 57) serves to minimise or avoid the creation of a cold bridge between the warm building interior and the cold space above the insulating layer (31).
364311
Johnson & Hicks
Purlin (anglia Jay) Company Limited
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