Damp patches on walls damp smell in newly built or renovated property Bands of dampness and discoloration on ground floor walls up to a height of 18 ID: 250844
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Dampness Possible characteristics Damp patches on walls, damp smell in newly built or renovated property Bands of dampness and discoloration on ground floor walls up to a height of 18 36. Damp and/or rotten floor boards. Patches of damp and/or mould e.g. in a corner of the ceiling, underneath the windowsill or on the walls. Crumbling plaster. Condensation on windows, or puddles gathering on windowsills. Mould and dampness, or even drops of water, all over (usually) an outside wall. Can effect bedclothes near that wall or the contents of cupboards. Type of dampness Construction processes. Rising damp. Penetrating damp. Condensation. Cause Plaster or concrete slabs not properly dried out. Defective or absent damp proof course (DPC). Water logging of the surrounding ground due to inadequate drainage. Faulty construction or lack of maintenance. Windows and doors that dont fit, holes in the roof, old or inadequate pointing to the brickwork, faulty joints in concrete slabs, blocked or leaking gutters, etc. Warm moist air meets cooler wall surface or windows. Inadequate ventilation, insulation, heating and/or poor building design. Remedy Drying out Repair or insertion of DPC. Repair fault, re- plastering. Increase insulation, ventilation and/or heating. * Identifying the problem: Dampness cited in Student housing and the law; page 114.