DIY Doctor

Main navigation

Help Identifying Water Penetration or Condensation Causing Damp Spots on Walls

Postby CarryOnScreaming » Mon Feb 08, 2016 3:47 pm

Hi there

I have a flat on 3rd floor of a 1930's brick built ex-council block with tennants in at the moment. Small spots of damp have started appearing on the window wall, mostly low down, either side of the radiator, though a couple are above the sill beside the window on one side as well.

Main area of damp

I suspect they are from condensation, though the tennants assure me they keep the room well ventilated. Is it possible this kind of damp can appear through water penetrating the wall (solid brick, which looks good from distance outside)? I have no experience in this area so any information advice or opinions much appreciated.

Close up of patch

- there has been no similar problem in the past ten years that I and other tennants have lived in the flat.

More patches
Rank: Labourer
Progress to next rank:
Posts: 2
Joined: Mon Feb 08, 2016 3:25 pm


Simply Build It

Postby welsh brickie » Fri Feb 12, 2016 8:43 pm

no its condensation, usually from drying clothes on a radiator that's on an outside wall,
Neat bleach applied with a sponge will stop it.
welsh brickie
Rank: Project Manager
Posts: 2611
Joined: Sat Apr 12, 2008 7:54 am

Postby CarryOnScreaming » Sat Feb 13, 2016 10:36 am

Thanks for your reply

- yes, this seems to be the unanimous concensus from every angle, I shall be wise to this from now on!
Rank: Labourer
Progress to next rank:
Posts: 2
Joined: Mon Feb 08, 2016 3:25 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics