Gluing plastic foil with foam?

[BigGitt]

Wondering if anyone has tried to glue/attach age-resistant plastic to wood with foam sealant?

 

[Krawk]

Expanding foam does not adhere (properly) to polyethylene, so it's probably not a good idea. The question is also whether the expanding foam is sufficiently age-resistant. Clamp or stick/glue with the right product.

On the other hand, wood is not vapor-tight, so it might not make much difference. It totally depends on the construction.

 

[Forbo]

Used expanding foam on some tricky spots to seal the plastic... noticed that it adheres poorly to the plastic, so it's not a good idea. However, the foam is diffusion-tight if it's thick enough, so it can seal uncertain areas... otherwise, it's glue, tape, and clamp...(Staples with tape over them during installation and then clamp if possible...)