Fibrexpan® thicknesses to install depending on the thickness of the reinforced concrete slab and the desired heat transfer coefficient U,
taking surface resistances into account, for a downward flow and a wall opening onto a closed, unheated room.
(Rs = 0,21 m2.K/W) :
Reinforced concrete: = 2 W/m.K
Fibrexpan® : = 0,038 W/m.K