In all the plans of architect or the builders of houses, it appears behind the walls a layer of insulation.
Example: After a hard thickness th1 (bricks, parpains, monomers, ...) there is a layer of insulation th2 with its 'ba13'.
From a real plan
In fact, to have the same result, you have to thicken the walls.
Would it be possible to add this option to existing walls with the choice of thickness (0 = none) ?
Of course, doors and windows must take this into account as in reality !
I'm ready to become a 'beta-tester'... [;)]
[:)]