Tongue and groove panel for insulated wooden walls, floors or roofs, comprises sandwich construction with wooden boards bonded together via insulation layer

摘要

The panel (1) has a sandwich construction comprises two wooden boards (2, 3) bonded together via an intermediate insulation layer (4). The panel has at least one tongue (7) extending in the panel length direction on one side and at least one corresponding groove (8) extending in the parallel length direction on an opposite side.