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Can a leaky roof cause damp?

A leaky roof is one of the main causes of penetrating damp. Water can penetrate roofs and walls during heavy rainfall. If you notice dark, damp patches on roofs and walls of your home during heavy rainfall, then this could be a tell-tale sign that you have a leaky roof.

If you have a problem with damp in your home, then there could be a variety of causes, so we’ve outlined the common types of damp, the common issues that cause them, what to look out for and the most common solutions to eradicate them.

Penetrating Damp

As already mentioned, a leaky roof can be one of the main causes of penetrating damp. If a leaky roof is allowing moisture into your home and you want some advice, please call us. We're always happy to help and can also offer a free quotation to replace the roof with one of our weather-proof systems. Other causes of penetrating damp include cracked walls, ageing brickwork, glazing issues, faulty guttering, fascias, soffits and downpipes.

If you have blotchy patches on internal walls, plaster damage, mould, moss or eroded brickwork on internal or external walls, then this could be a sign that cracked or ageing bricks are allowing moisture into your home.

There are several professional solutions for structural issues that cause penetrating damp, however, it is advisable to use a professional surveyor to identify the cause first. Peter Cox have a branch in Lincoln and have a fantastic reputation. They also provide solutions to this type of issue.

If you have an issue with damp and have noticed a damp patch directly beneath your guttering on the outside of your home, then faulty guttering could be to blame. Excess water due to blocked or broken guttering can lead to damp on interior walls and flooring, as well as damage to the foundations of your home over time.

If you can see that there is obvious damage to your guttering that is causing the issue, then please call us and we can survey the problem, providing a free quote to install a new gutter system.

If you can’t see any damage, then the issue may be caused by a blockage. There are a number of local services that offer gutter cleaning services and will survey your gutter system to identify the problem. Mark Hennis at GutterPRO Lincolnshire is a local gutter cleaning professional with an excellent, local reputation.


Damp caused by the build of condensation is often caused by poor ventilation in the home. Cooking and washing produces moisture that is carried by warm air in the home and condenses on the coldest parts of the house, such as windows and exterior walls if there is a lack of ventilation or issues with the ventilation in the home.

Ventilation issues can be caused by faulty roofing, faulty soffits, faulty glazing or a lack of ventilation in certain parts of the house, such as a bathroom soffit vent.

If you are experiencing damp, mould and mildew and can often see a build of condensation on exterior walls and windows, then it may be worth speaking to a reputable surveyor for expert advice. This will identify the root cause of the issue and you can act accordingly.

Rising Damp

Tell-tale signs that you may have rising damp are damage to skirting boards and plaster, tide marks rising up the wall, warping of floor coverings and peeling paint and wallpaper.

Rising Damp is usually caused by damage to the damp-proof course or the fact that one isn’t present at all. Condensation is sometimes misdiagnosed as Rising Damp, so it’s worth looking for the tell-tale signs to get an idea of which it is, if you’re having issues with damp.

If you’ve got a good idea that it’s Rising Damp then again it’s worth contacting a professional surveyor for expert advice.

If you think that damp is being caused by a leaky roof, roof damage, fascia, soffit or guttering damage, then please give us a call. We’re always happy to offer advice where possible!

01205 316 563


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