| 摘要 |
<p>Roofing layer in the shape of a strip which has a profiled vapour pressure relief layer (3) on the bottom side (2), characterized in that this vapour pressure relief layer (3) has one or a combination of two or more of the following characteristics: profiles with free spaces (6) which extend over 55 to 70 % of the total surface; profiles with free spaces (6) which are formed of channels (9-10) with a width (B2) of at least 5 cm; profiles with channels (9-10) in the form of a grate; profiles whereby material parts (4) in the shape of a nodular pattern are provided.</p> |
