SECURITY AND THERMAL ISOLATION  


SEISMIC ACTIONS SECURITY
 
The wood house build with the block-bau technique, thanks to the woods features and to the interlocking system used for the construction, is suitable to resist also hearthquakes of high itensity. 
The wood, even if it is a resistant material, has a lower mass of the one of cement and bricks normally used in construction, and this makes the seismic action less influential. The flexibility and compactness of this way of building and the raw material used represent a perfect antiseismic system. 

SECURITY AGAINST FIRE 
Beyond any common belief and due to some its particular features, the trunk house system offers better warranties compared to the buildings made with other materials such as cement and steel. Wood in fact, even if it has a low combustion temperature (around 300°C), does not lose its mechanic properties even while burning. 

THERMAL INSULATION 
Everyone knows something about the insulation features of wood. Its limited specific gravity (density) assure an excellent insulation. A trunk wall with a 35cm average diameter corresponds, in terms of thermal resistance, to a 80 cm traditional brick wall, to a 400 cm stone wall and 470 cm beton wall! 
These parameters are referred just to thermal insulation. This is the reason why these buildings have been used since ancient times in particularly cold areas. 
This thermal welfare is linked to the hydrometric welfare as there are no barriers to the humidity interchange with the exterior, and in most cases with no mechanic ventilation. 
We have done some calculation based on a sample house to demostrate its thermal insulation: The bulding is included in the energy class “B” and this without using special windows and glasses. Different are There are different heating systems that can be used: gas with radiators or floor heating, wood, tiled & soapstone stoves.