| 摘要 |
A roof panel (1) for forming a low pitch or flat roof having an inner liner (2), an outer layer (3), a body of insulation material (4) between the inner liner (2) and the outer layer (3). A waterproof membrane (5) is pre-bonded to the outer layer (3). The membrane (5) comprises an integral side lap (10) extending sidewardly of at least some of the marginal edges (8) of the outer layer (3), and the side lap (10) being extendable over the joint (20) between adjacent panels (1) to form a sealed joint (20) between adjacent panels on assembly. |
