Rectangular wooden plate is for use as roof underlay and comprises first unification component arranged at two limiting edges of rectangular plate and second such component arranged at two opposing edges of rectangular plate

摘要

The rectangular wooden plate is for use as a roof underlay and comprises a first unification component (12) arranged at two limiting edges of the rectangular plate and a second such component (14) arranged at two opposing edges of the rectangular plate. The second unification component has a completing formation to the first unification component and at least one of the two components has a sealing constituent (20) which can seal one or more of the wooden plates.