COMPOSITE TIMBER Russian patent published in 2005 - IPC

FIELD: building, particularly composite timbers.

SUBSTANCE: composite timber is formed as box including two vertical and two horizontal wooden walls. Walls are connected one to another by extensions and grooves. Timber interior is filled with heat-insulator. Timber has grooves for receiving inserts of heat-insulation material. The grooves are formed on outer surface of horizontal walls in parallel to longitudinal axis of symmetry and extend over the full length of the timber. Stiffening ribs are connected to inner surfaces of vertical walls. Plates of heat-insulation material are embedded in stiffening rib surfaces facing vertical walls. Above heat insulation material used for insert and plate forming is foil-clad foamed polyethylene. Heat-insulator filling timber interior is made as foamed vermiculite bars.

EFFECT: reduced material consumption along with maintaining heat-insulation properties thereof.

3 cl, 1 dwg