Glue for attaching vapor barrier to wood?

[MalinW]

Hi
We are trying to connect the vapor barrier in the walls to the window frames. The age-resistant tape is not sticking very well. I have read on the forum about an adhesive that worked for the vapor barrier and wood, but I can't find that thread.
Does anyone know the adhesive?
Or is there any other good way to seal against the window frame?

Thanks!

MalinW

 

[daije]

fill the space between the wall stud and window frame. then take regular construction latex and apply it on top of the filling. done

 

[MalinW]

Hello daije,
Thank you for your response. Unfortunately, I don't think it's that simple. We have heavily added insulation, so the vapor barrier must be really tight to prevent moist indoor air from escaping and condensing in the walls.

 

[Snurre]

Yes, it's that simple! Backer rod and seal with latex, end of story!

 

[MalinW]

OK, good thank you!
Are the backer rod and latex caulk vapor-tight? I have searched Sika's, Casco's, and Bostik's websites without finding information about that. When I google diffusion-tight sealant, there are a lot of instructions that it should be used when installing windows, but I find no reference to any sealant that is vapor-tight.
Does the latex adhere to the vapor barrier?

 

[danieldanieldaniel]

if you use building foam instead of drev, it becomes diffusion-tight

 

[MalinW]

Well, expanding foam would have been good, but now the windows are already there, sealed and finished. It will be expanding foam if we decide to renovate another house

 

[Snurre]

OK, great thanks!
Is the backing strip and the latex sealant diffusion-tight? I've searched Sika's, Casco's, and Bostik's websites without finding info on that. When I google diffusion-tight sealant, there are many instructions that it should be used when installing windows, but I can't find any reference to a sealant that is diffusion-tight.
Does the latex adhere to the diffusion plastic?

http://www.leifarvidsson.se/files/pdf3/51_low.pdf
One of many products! Google diffusion-tight sealant, and you'll find many results!

 

[Knåpen]

Check out Bostik foiltack, maybe that's what you want.

 

[MalinW]

We finally got hold of our constructor. He thought we should use Sika's Igaspistolet. It is butyl rubber-based, not latex. It is special for diffspärr and the only one that works in Sika's range according to them. There are probably other equivalent compounds, but we will test this one.

Thanks for all the answers!

MalinW