| 20090188161 | ROOF CONSTRUCTION FOR A GREENHOUSE - Roof construction for a greenhouse has two roof elements positioned at an angle, wherein first and second members extending between ridge and gutter are fitted in each roof element. The second members extend perpendicularly to the ridge/gutter and are members taking compressive load, while the first members joined thereto are members taking tensile load. There are tensioning members to introduce tension and pressure, respectively, into the construction. With this arrangement a particularly rigid whole is obtained. The tension members can be joined to ridge and gutter, but it is also possible to construct these with a shorter length. | 07-30-2009 |
