Question 1

What Causes Penetrating Damp Around Windows?

Accepted Answer

Penetrating damp around your windows is usually a problem with the window frame – typically, it is not property sealed or in the case of an old window, the sealant is no longer effective. In this case, you may be able to have the windows resealed to correct the problem and prevent future moisture from getting through. However, in severe cases, it might be necessary to completely replace the window. If the damp that has been caused by the moisture getting through a faulty window frame has caused serious damage to the internal or external walls, this may require you to have the affected parts of the wall replaced or replastered once the source of the damp has been dealt with.

Question 2

Can You Get Paint to Stop Penetrating Damp?

Accepted Answer

You may be able to apply a paint or treatment to your external walls to prevent moisture from getting inside the bricks. However, it’s important to bear in mind that these treatments are only effective when the cause of the penetrating damp is porous brickwork, and will not usually be effective against other causes of penetrating damp such as cracks in the brickwork or roof or windows that need to be resealed. You should treat the outside of your house using the damp-proof sealant or paint on a dry day. The treatment is not designed to last forever and you will usually need to redo it around once per year in order to continue experiencing the benefits.