Thanks!
I'm definitely in a cold zone. We've seen -30F this Winter already without wind chill.
When you say 'Poly' are you referring to Polyurethane? Is that a spray or something I add on top of the gravel/sand/Styrofoam?
Hello,
My house once had a breezeway between it and the garage. Previous owners turned this breezeway into a finished laundry/mud room with a concrete slab underneath that cannot be accessed from the basement. On both sides of the breezeway are patio blocks.
The issue I'm having is...