Basement fixes for walls and floor
I am a residential energy and durability junior advisor who is dealing right now with a problem related to the constructive elements being in contact with the soil, without any water barrier.
This country house is located in a mixed-humid climate. It is a residential building with 2 stories from 1912. The ground floor walls are partially in contact with the ground (thick stone walls). No waterproof system. The ground slab is also in contact with the ground, with no waterproof system.
Mold on the walls;
Extensive efflorescence on the walls (mainly near the base-raising damp);
Painting peeling off on the walls;
Wood ground tiles being detached from the slab.
No liquid water entering the rooms.
Floor – Install a dimple mat on the ground floor, OSB subflooring and new wood tiles. I plan to avoid all the humidity to ruin the tiles again by blocking its upward movement. All the seam will be taped with a gas-tight material.
Walls – Since there is no liquid water entering I was thinking about just apply a heat applied bituminous against the wall and then apply some gypsum wallboard over some furring strips with mineral wool in between.
Floor – Won’t be that space between the ground slab and the dimple mat a nasty place for mold? I mean, evaporation and ventilation will be cancelled.
Walls – Am I thinking correctly? The wall won´t be able to dry inside, they will always be damp (durability problems ?). Won’t the inward vapour drive affect my membrane?
Many thanks in advance
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