Why there are water vapor barrier structural insulated panels?
The structure of the group is to act as insulation vapor barrier. Most model building codes require vapor barriers perm rating of 1 or less. Perm rating at the Thermotech 21 ™ structural insulated panel system is less than one. In addition, as the Thermotech 21 ™ of the SIP wall systems, the gap has been eliminated, therefore, non-condensing moisture. Water is not a problem, the structural insulated panelized system. At polystyrene foam (EPS) material investment program will absorb and release water according to season, but there are no harmful effects from this by bike.
