BS 4841-4:2006 : Title: Rigid polyurethane (PUR) and polyisocyanurate (PIR) products for building end-use applications Specification for laminated insulation boards (roofboards) with auto-adhesively or separately bonded facings for use as roofboard thermal insulation under non-bituminous single-ply roofing membranes Pages: 18 Year: Publisher: British Standards Institution Availability: Within 1-2 working days
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