Ads
related to: how to avoid damp spots on drywall cracks in walls and floors
Search results
Results From The WOW.Com Content Network
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.
A typical test objective for fire rated assemblies is to maintain the item or the side to be protected at or below either 140 °C (for walls, floors and electrical circuits required to have a fire-resistance rating). A typical test objective (e.g., ASTM E119) for fire rated structural protection is to limit the temperature of the structural ...
The curing of concrete when it continues to harden after its initial setting and progressively develops its mechanical strength is a critical phase to avoid unwanted cracks in concrete. Depending on the temperature (summer or winter conditions) and thus on the cement hydration kinetics controlling the setting and hardening rate of concrete ...