Continous wet Patches on Sill Above Cavity Dwarf Wall

Postby alstudio » Sat Sep 02, 2017 12:17 pm

I've done searches in forums but not seen anything that seems to address my issue.
I had a new conservatory with double glazing built on the existing dwarf walls last autumn. I love it ...BUT

The wet patches as shown in the image never go away. They are only in the one section of the window sill.

Inside the dwarf wall is a cavity in which there is a plastic membrane and is now also full of pink expandable foam.
Outside very close to the larger patch there are 2 bricks which are wet ...the others are dry.
I think the 2 issues are related but not sure how!.

Please does anyone have any ideas ?.

Many thanks in advance.
conservatory window sill context.jpg
2 wet bricks.jpg
2 wet patches.jpg
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Sat Sep 02, 2017 11:41 am


Simply Build It

  • 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