Wood is the only material which settles in and breaths. Agreeable and friendly, it creates an authentically quiet environment. It was shown that children aggressiveness and their impulse to mark the walls diminish considerably in the educational places build with wood. Being alive, wood breathes: its capacity of absorbing and returning the humidity from the air generates a very pleasant living climate. The wood, competitive in special in the case of the cold regions, adapts well in the worm regions as well. A simple wood wall insulates better than a masonry wall with insulation. The reduced thermal inertia quickly regulates the temperature changes; and as the wood structure characterizes by the absence of the heat bridge - representing more than a 30% of a masonry house waste - the house of wood finds itself in the frontline of the systems of energy consumption reduction. Wood constructions long term reputation from the North of the European continent is actually confirmed in the central and south regions as well. The wood does not store up and naturally integrates through construction structures and technical solutions of airing, ventilation, solar protection. The wood constructions also offer an excellent sound insulation.