Can you insulate an existing slab on grade floor?
...insulation, so whatever you feel there is the best you could hope to feel close to the exterior walls by insulating the ground. As for aesthetics, you’d need to dig gown a foot or so to lay the insulation and be able to cover it again with 6 to 8 inches of soil. So as for aesthetics, you can (and must) bury it.
The onl...