Damp control blog → Damp on the ceiling?

Damp on the ceiling
Damp on the ceiling

Damp on the ceiling?

Damp problems in the house are often visible on walls or on the floor and the ceiling of the house can also be affected by a large amount of damp. A solution (which we do not recommend) is to hide damp spots by placing a piece of furniture (or a painting) against it, yet still, damp spots are very noticeable and difficult to hide. More importantly, there is a much better solution, which is to tackle the damp problem at its core. So, what are the steps that you should take when you have damp spots on the ceiling?

The causes of damp spots on the ceiling

When you want to solve a damp problem, it’s important to know the cause of the damp spots. You can get straight to work to solve it, but that’s tricky if you don’t know what’s causing the problem. Various causes include rain damage, a leak or permanent high humidity in the house. When the cause of the damp problem has been solved, you can then start repairing the visible damage.

How do you know if you’re dealing with a leak?

Are the damp spots especially visible in the centre of the ceiling? If so, then there is a good chance that you are suffering from a leak. This is often the case when there aren’t any damp signs in the corners. A leak is also entirely plausible when the bathroom is almost exactly above the damp spots. One of the most common causes of a leak is a broken pipe, but it is also possible that water leaks while showering or bathing. When you notice a leak, the best thing to do is to call in a plumber- they can easily fix the leak and detect where the leak is. What they cannot do, however, is fix the damp problem, for that you will need to call in a damp specialist company, like SmartDry.

Damp problems in your house?

Are the damp spots caused by rainwater?

Are the damp spots on the ceiling mainly visible at the corners and edges? Especially close to the walls? Then there is a good chance that rainwater is the cause of the problem, specifically during strong rain showers or periods of heavy rainfall- this is when you notice that the spots are really damp. If the walls dry up after the weather has gotten warmer and dryer, then it’s almost definite that rainwater is creeping through the walls or through the roof as they are not providing sufficient protection against the rain. Check to see if there are any cracks or tears in the exterior walls or roof, and if there are then call in a roofer to have the roof damage repaired. Again, they roofer can repair the roof and a builder can repoint the pointing of the house, but they cannot dry out your walls, for that you need a damp specialist like SmartDry.

High humidity in the house

If it is too humid in your house, this humid air can accumulate in the ceiling and your walls. This is because the water vapour (which causes condensation damp) is lighter than normal dry air. This may seem inherently incorrect, but dry air is heavier than humid air due to it’s molecular compound, and so the old age rule applies and “heat rises”. If you ventilate the house sufficiently, you can avoid this type of damp, however, if the damp in the house cannot escape because the house is too well insulated, the damp will migrate into the walls and ceiling and accumulate. This causes the paint to peel off, ugly damp spots arise and mould begins to grow. If this is the case, opt for a permanent solution to remove the damp in the wall, a good alternative and natural solution that comes with a lifetime guarantee are SmartDry’s DryBricks.

Remove or hide the damp spots?

When the cause of the damp spots on the ceiling has been found and fixed, then it’s time to remove the damp in your walls. There are several methods to remove or hide the damp spots. You can choose to paint or plaster the ceiling. Each solution has a different price tag. What you can do is take pictures of the places in question, show them to a DIY store and they can advise you on the most suitable solution.

Plan a free damp assessment

Feel free to contact us for a free damp assessment or advice from our moisture expert.