| 摘要 |
<p>PCT No. PCT/SE81/00128 Sec. 371 Date Dec. 7, 1981 Sec. 102(e) Date Dec. 7, 1981 PCT Filed Apr. 27, 1981 PCT Pub. No. WO81/03196 PCT Pub. Date Nov. 12, 1981.A roofing sheet intended to constitute external roofing, especially for roof constructions for small houses, comprises an upper edge which the mounted state of the sheet extends horizontally and perpendicular to the pitch, and is shaped to act as a beam, a lower edge which extends in parallel with the upper edge and is formed to overlap the upper beam section of an underlying sheet. The upper beam section and the lower edge are connected by groove-shaped portions, which in the mounted state of the sheet extend in the direction of the pitch.</p> |
