DIY Insulating with spray foam kit
Has anyone had any experience with Touch N Seal or Foam it Green (or any other)spray foam kits? Do you think you can get a professional result with a DIY product like this? Any personal experience s...
Forum Discussion
With a foil face and fiberglass reinforcement, your Iso foam permeability to water vapor will be under 1 Perm. That is about as good as it gets. A vapor barrier of 4 mil polyethylene sheet will decrease vapor transfer into the wall. A thermal break of 1/4" extruded polystyrene (fanfold insulation) stapled across the studs and Iso foam will offer relief from conductive heat/cold transfer through the studs. That thermal break shouldn't be underestimated, IMO.
I cut and installed extruded polystyrene and friction fit it into the cavities. This was followed by sealing any voids or cracks with foam adhesive. It's not necessary to attach the foam sheets to the inside of the siding.
Good luck with your TC!
I cut and installed extruded polystyrene and friction fit it into the cavities. This was followed by sealing any voids or cracks with foam adhesive. It's not necessary to attach the foam sheets to the inside of the siding.
Good luck with your TC!
