BS 4841-3:2006 : Title: Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end-use applications Specification for laminated boards (roofboards) with auto-adhesively or separately bonded facings for use as roofboard thermal insulation under built up bituminous roofing membranes Pages: 20 Year: Publisher: British Standards Institution Availability: Within 1-2 working days
BSI will directly send the standards to End-User after our confirmation.