| 摘要 |
The invention relates to a backing layer (10; 20) of a multilayered insulating panel (100) for building constructions. Said backing layer comprises: - a gas-tight reinforcement layer (1) comprising a first surface (Fl) and an opposite second surface ( F2 ); - a fire-resistant layer (2) for example in expandable material, operatively associated to the first surface (Fl) of the reinforcement layer (1). |
