Airtight cavity filling as a base for vapor barrier

  • Erstellt am 2023-07-27 12:31:05

xxv1nxx

2023-07-27 12:31:05
  • #1
Hello everyone,

I am currently insulating the roof of my house from 1930.
As you can see in the picture, there are cavities that I need to fill in order to attach the vapor barrier.
Do you have any idea what I can use to fill such cavities?
I was thinking about using foam sealant, but I am afraid that the adhesive will not stick to hardened foam.

Many, many thanks in advance,
Vince
 
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