BS ISO 29764. Thermal insulating products for building applications. Determination of deformation under specified compressive load and temperature conditions
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