How to Fix Gap above Insulated Plasterboard that has Been Damp Since Installation


Postby AndyB19 » Sun Aug 30, 2015 6:54 pm

I had a room dry lined with insulated plasterboard 2 years ago, to make it warmer. However the builder didn't do a very good job, as there was one area where the plaster never dried, see picture. I had the roof checked, but it is fine (no damp coming through). 6 months ago I chiselled the plaster away in the area that never dried, to find that the builder had cut the insulated plaster board too short in that area, and had filled the gap with mortar, which didn't dry and then the plaster on top of it subsequently never dried. I have removed all the mortar he used to stuff the gap, however some of the plasterboard has come away too.

I'm now left with this hole and not sure how to fill & repair it? The area is 1 metre long, and max 150mm down, and the plasterboard originally used was 32.5mm deep approx (builder used dot & dap approach to fix it to the brick). We are hoping to sell soon, so just want to patch it up, rather than take the whole board down.
image.jpg

Any suggestions re how to fix this would be great.
AndyB19
Rank: Labourer
Progress to next rank:
0%
Posts: 1
Joined: Sat Aug 29, 2015 2:08 pm

Sponsor

DIY asbestos test kits

Postby welsh brickie » Mon Aug 31, 2015 6:41 pm

fill it with expanding foam, its waterproof, and has high insulation properties
welsh brickie
Rank: Project Manager
Posts: 2596
Joined: Sat Apr 12, 2008 7:54 am

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