Question regarding rigid foam under slab (for Martin)
I’m building a home in Ottawa, On. (zone 6)
I’m laying 2 inches of EPS under the slab (R-8) and 4 inches of EPS on the interior foundation walls. (R-16)
I will be installing Rub-R-Wall and Geo Wrap over the exterior of the walls.
From reading previous posts, I will be adding my poly directly above the foam, directly below slab.
Question: Can I tape up all the seams with recommended foam tape? Will this help? just so we can walk over the foam while installing the foam on the walls.
I intend on first applying the foam on the ground, then applying an adhesive on the foam for the foundation walls…then taping up all the joints with the tape.????
I first thought about applying a fastening system for the walls, but was told the drilling time in concrete for 69 sheets of foam would be too extreme.
Any advise would be much appreciated!
GBA Detail Library
A collection of one thousand construction details organized by climate and house part