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 | | NEW 30 MINUTE-RATED INSULATED ROOF LINING | | | British Gypsum | | 17/09/2007 | | | Internal linings specialist, British Gypsum, has launched a new ceiling lining board that combines high levels of thermal insulation with 30 minutes fire resistance.
Developed in conjunction with a major house builder, the new lining board is an extension of the company’s market-leading Gyproc ThermaLine SUPER range, specially developed to satisfy the fire performance requirements for ceiling membranes in ‘room-in-the-roof’ constructions.
A laminate of 15mm Gyproc FireLine, a special fire-resistant plasterboard, and 40mm high performance phenolic foam, the new 55mm board includes an integral vapour control layer to prevent condensation in the roof construction, and can be used in combination with Isover glass wool insulation to achieve ‘U’ values down to 0.19 W/m2K in standard 175mm X 47mm timber rafter constructions.
Fixed directly to the underside of the joists using 90mm Gyproc Drywall Screws, the new board offers all of the usual benefits of an insulated dry internal lining, and can be jointed and decorated in the normal way to give smooth monolithic appearance. | |
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