Roofing members without auxiliary facers and related methods

Details Roofing members without auxiliary facers and related methods Roofing members without auxiliary facers and related methods

E - Fixed Constructions

04

D

E04D 13/16 (2006.01) B29C 44/30 (2006.01) B29C 44/56 (2006.01) E04C 2/20 (2006.01) E04D 11/02 (2006.01) E04D 12/00 (2006.01) B29C 67/24 (2006.01)

Patent

CA 2216028

An insulation board (10) insulation board comprising a foam core (11) selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof; the board being devoid of facers. A method of covering roofs comprises applying insulation boards to a roof deck, the insulation boards comprising a foam core selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof, the boards being devoid of facers; and, applying a weather protective layer over the insulation boards. A continuous method of making a facerless insulation board comprising the steps of feeding a first sheet (24) of temporary facer material into a laminator (25); depositing a foamable polymer liquid (40) onto the first sheet; feeding a second sheet (23) of temporary facer material into the laminator above the foamable polymer liquid; allowing the polymer liquid to rise between the first and second sheets forming polymer foam (44) of a pre-determined thickness; curing the polymer foam under heat (45) to create the insulation board; removing the first and second sheets from the board prior to final curing and cooling; and cutting the board to desired lengths.

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