Damp Proof Course Above Internal Floor Level

Damp below damp proof course level.

Damp proof course above internal floor level. Selection of materials for damp proof course in buildings. Dpc material for situations where differential thermal movements occur. Generally damp proofing keeps moisture out of a building where vapor barriers keep interior moisture from getting into walls. Dpc above ground level.

External ground levels ideally need to be lowered 150mm below the damp proof course or the internal flooring. By simply lowering external ground levels this will allow wall base evaporation to help control rising dampness. Depending on the extent of the rising damp this can be a more costly and extensive job to repair. A quick summary checklist.

The below diagram shows what bridging of the damp proof course looks like. As it dries out the damp retreats slowly back to the points of ingress so if you are not able to see any isolated damp areas either ventilate and heat or shut all the doors and windows and use a dehumidifier. Types of materials for damp proof course. Houses are usually built with a damp proof course dpc just above floor level to prevent moisture rising up but if this has failed or the property did not have a dpc then rising damp can occur.

Dpc material for floors roofs etc. Waterproof is defined by the astm as a treatment that resists the passage of water under pressure. Methods of damp proof course installation in construction. Tip 1 if a concrete floor is damp all over it is hard to isolate the moisture source.

Damp proofing is defined by the american society for testing and materials astm as a material that resists the passage of water with no hydrostatic pressure.