Damp can be caused by various factors, many of which can be prevented by good maintenance. Damp problems can occur anywhere that is exposed to moisture such as rain, external gutters, and water pipes. We prefer to fix the source of the problem rather than disguise the issue with waterproof render as many damp proofing companies will. We can provide a full service from survey to decoration so you don’t have to worry about employing other trades.
Penetrating Damp
This form of damp is caused by moisture getting into the property by passing through ceilings, floors, and walls. This will often be caused by plumbing defects, leaking roof coverings or rainwater goods, guttering, etc which can be either internal or external defects and may cause extensive damage to plaster, timber, and joinery. Other forms of penetrative dampness may relate to high ground levels or abutting structures where moisture ingress can occur.
Rising Damp
Rising damp occurs due to moisture from the ground which can pass into the masonry unless an effective barrier is present. Many older properties did not contain any damp proof course and more recent properties where a damp proof course was provided, may suffer from defects over time, often resulting from problems of ‘bridging’, high ground levels or damage during renovation works, etc. When a property becomes damp and starts to deteriorate, there is a risk of further decay to the property affecting internal aspects such as plaster, skirting boards, or floors and this is the primary concern with rising damp. When rising dampness occurs, the moisture from the ground contains ground salts, which are deposited within the plaster and hence renewal of the wall plaster is normally required to overcome the effects of the salt in the masonry.
Condensation Damp
Over 20% of homes may be affected by condensation damp making it the most common form of damp occurring. The cause of condensation damp is water vapour within the property being unable to escape and then condensing onto colder surfaces. If a room has poor ventilation and especially if there is a consistent temperature change in a room, such as the heating being turned on and off, water droplets can begin to appear on walls and windows which will then lead to the growth of dark mould and a musty smell.
This room had multiple issues with penetrating damp. The chimney breast had been blocked up with no air vents and rendered with Gypsum plaster. Rain was getting into the void which was full of debris. Moisture was trapped causing visible damp patches in the room.
The wall next to the window was severely saturated due to a poorly installed roof. The internal render was removed and our team repaired the roof. The wall was left to dry before the application of a breathable salt retardant cream and re-boarding of the wall. The finished result is seamless.
The client was so happy with the works we were asked to redecorate the whole room. Our designer provided advice for colours and finishes and our skilled team completed the works.
ROSCO & PERLINI LIMITED
11-12 Old Bond Street, W1S 4PN
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Registered in England 12622037
T: 07943 198 045
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