IMPROVEMENTS RELATING TO INSULATION PANELS

摘要

An insulation panel is formed with an upper layer (1) in the form of a weatherproof membrane which is permeable to water vapour, an intermediate foamed layer (3) and a lower metallic layer (4) which acts as a vapour barrier. The foamed layer (3) provides thermal insulation and acts as a bond between the outer layers (1 and 4). Ideally a glassfiber layer (2) will be embedded into the upper region of the panel to provide added rigidity. The edges of the panel will ideally be formed with interlocking rib and groove formations which can also be interconnected with supporting channel members for a complete roofing system.