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Learn how to spot the difference between harmless and serious cracks in your walls. We asked an expert to explain when and why you should be concerned.
A metal damp proof course (DPC) between the stone foundation and brick wall. Damp proofing in construction is a type of moisture control applied to building walls and floors to prevent moisture from passing into the interior spaces. Dampness problems are among the most frequent problems encountered in residences.
Plaster removed from a wall as part of a rising damp treatment. The wall was replastered using a sand-cement render. BS6576:2005 [61] states that "the function of the new plaster is to prevent hygroscopic salts that might be present in the wall from migrating through to its surface, while still allowing the wall to dry."
A slab-on-grade or basement floor should be poured over a cross-laminated polyethylene vapor barrier over 4 inches (10 cm) of granular fill to prevent wicking of moisture from the ground and radon gas incursion. Inside a steel building, water vapor will condense whenever it comes into contact with a surface that is below the dew point temperature.
Cracks in the walls and ceiling and gaps in the flooring can indicate significant problems. Also, check out common areas like hallways and stairwells for indications of structural issues or ...
Walls appear to be bowed inward. Peeling paint: Water seeping through walls may lead to bubbling or peeling paint along basement walls. [4] Efflorescence: White, powdery residue found on basement walls near the floor. Mold: Fungi that usually grow in damp, dark areas and can cause respiratory problems after prolonged exposure.