| 摘要 |
The present invention relates to a prefabricated roofing underlay. A number of battens (4) of wood are attached to an underlay (2) of plastic, glass fibre or the like, the underlay (2) with battens (4) being arranged to be stored and transported in rolled state and, upon application, being unrolled and secured to trusses (1) beneath. The rolling procedure is performed to produce two rolls rolled in opposite directions and connected together. |
