Why Your Roof Might Be Causing Dampness In Your Home

Dampness around the home can be a frustrating and confusing issue. Unfortunately, this can lead to quite significant problems over time.

While there are many causes for moisture buildup, one of the most common explanations is a roof which is either damaged or not properly shielded from outside conditions. So, how can you spot this dampness around your home and what are some surefire ways to address such a troublesome problem?

Major Indicators

One of the most common signals that moisture may be present is if mould is seen. When referring to the roof, you may begin to see this discolouration on your ceilings. When this is observed, it is wise to ascend into your attic or crawlspace and see if there is more mould. Should this be the case, the roof is likely the cause.

Another symptom is walls and ceilings that are cold to the touch. In some ways, this can be a precursor to mould which will form later down the line. Condensation may also be present although this is not always visible.

A localised spot of mould or water buildup is a sure signal that water is entering a room. However, this may not always occur at the ceiling. In some cases, water can cascade down and exit at other areas within the home. In any of these conditions, check the roof (both inside and outside) to see if there are any visible leaks.


Assuming that dampness is caused by the roof, there are several steps that can be taken. The first will deal with water that is actively entering your home. Replace all worn or missing shingles (a sign that shingles are insufficient is grit in your gutters and downspouts). Visibly make sure that all joints and the roof line are sealed tightly. This is easier to see if you enter the attic during the daytime and look for signs of natural light from above. Also, any missing tar paper needs to be replaced; this provides important waterproofing benefits. Check for blockages within your gutters and if they are very old, replace them as is necessary.

Still, we also need to recall that differences between the inside and outside temperatures could cause condensation. Modern roofing materials will provide a higher degree of insulation than those that had been used in the past. Likewise, check to make certain that the interior attic displays the proper amount of insulating material. If you are unsure, consulting with a local trade professional may be your best option.

Of course, there are many other causes for dampness within the home (such as its age, an improperly waterproofed basement or windows that are not sealed). However, it is a fact that a damaged roof is one of the easiest for water to enter into your home. The aforementioned symptoms can indicate that this problem exists. In in any such case, it is always best to speak with a qualified professional who will be able to diagnose the exact cause.

Written by Morgan Asphalte, the leading providers of roofing services in the London area. Get in touch today to find out more.

Posted on 21 January 2015 in Roof Damage.

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