Penetrative Damp Blog

Penetrative Damp Blog

Penetrative Damp:


You may have heard of penetrative damp, but do you fully understand it? It’s getting to the time of year when we see increased moisture in the air and more rain than usual across London & Berkshire.


Simply put his type of damp is the consequence of moisture ingress into the property from the exterior. This type of damp can also affect any area within your property unlike rising damp.


DH Damp Proofing & Plastering see many of the older properties across London & Berkshire suffer from this type of damp. Although properties that have been built in more recent times have a much higher protection from penetrative damp you should still regularly check for any signs of moisture ingress.


Knowing what to look for is useful, take the time to regularly inspect the exterior of your property for any potential damage that could give rise to penetrative damp. For example, failing pointing, blocked gutters, broken gutters, ill-fitting or poorly installed windows, damaged rainwater pipes/down pipes, faulty plumbing, failing damp proof course or damage to any flat or tiled roofs. Any of the aforementioned damage should be fixed to avoid any future problems occurring.


Looking around the interior of your property if you notice any of the following: musty smell, patches of damp from a leaking roof, damp patches on walls that tend not to dry out, peeling or damaged plaster/wallpaper or black mould then you could well have fallen victim to penetrative damp. We would strongly advise that you arrange an inspection by a reputable company if you suspect any form of damp in your property.


Also, be aware that any timber that is exposed to prolonged moisture ingress can suffer wet rot or even worse dry rot, check any timber areas for any signs of moisture damage or infestation.


So, what can you do if you do indeed have penetrative damp. A specialist will need to be called in to assess the amount of damage and help put in place a treatment plan.


Treatment plans generally consist of finding the source of the moisture ingress and repairing this. You may need to install a water proofing membrane to the walls of the property that are affected. Any damaged timber and/or plaster will need to be removed to avoid causing any future problems.


After the damp has been treated you should continue to take preventative steps to avoid any moisture ingress into your property and identify and treat any potential issues before any damp appears on the interior of your property. Any leaks within your property should also be fixed to avoid a damp problem exacerbating the problem.


Never attempt to fix a damp problem yourself as a DIY project as doing this incorrectly can cause further damage to your property whilst not actually fixing the problem in the first place. We always advise that you contact a professional if you suspect damp in your property.

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