COMPARISON BY WEIGHT
THE WEIGHT OF BLOCKS FOR CARRIER WALLS
ON GROUND WITHOUT INSULATION
(Action on foundations):
FOR A HOUSE OF 2 LEVELS:
In T17 for a house of 100 m2 (800 pieces of 13,59 kg)
Cellular brick type OPTIBRIC PV of 20 cm for a house of 100 m2 (1,028 pieces of 17,60 kg)
Cellular concrete of 20 cm type YTONG for a house of 100 m2 (733 pieces of 15,66 kg)
In hollow concrete block of 20 cm for a house of 100 m2 (1,152 pieces of 11,59 kg)
20 cm COGETHERM pumice stone for a house of 100 m2 (985 pieces of 11,59 kg)
FOR A BUILDING OF 4 LEVELS:
In T23 for a building of 50 homes (27,000 pieces of 16,58 kg)
Cellular brick type OPTIBRIC PV of 20 cm for a building of 50 homes (34,714 pieces of 17.60 kg)
In block hollow concrete of 20 cm for a building of 50 homes (38,880 pieces of 24,00 kg)
In pumice stone 20 cm type COGETHERM for a building of 50 homes (33 230 pieces of 11.59 kg)
In full 20 cm concrete sail for a building of 50 homes (2,400 kg / m3)
No possibility to mount 4 floors of cellular concrete other than structure poles / beams and filling.
After that we have to add the weight of the insulation behind the load-bearing wall and the material VEGETAL BUILDING does not need important insulation compared to other materials. In absolute terms, the insulation is more than 50% less thick compared to the needs of a MONOMUR brick 20 cm thick.
It should also be known that practically the majority of the buildings beyond R + 2 are made of concrete veil in France which requires to have reinforced foundations because of the weight and a very important insulation compared to other materials cellular brick, block hollow concrete, cellular concrete and pumice stone to meet the thermal standard RT2012 in France.