Understanding the pros and cons of using closed-cell spray foam to insulate beneath a concrete slab will help inform your insulation plan.
What's the Best Way to Insulate a Basement Slab? - GreenBuildingAdvisor
Foaming Under the Slab
Sink or swim: A comparison of below-grade rigid foam insulation moisture performance - Page 2 of 3 - Construction Canada
Cantilevered Floor Building America Solution Center
The Detail You Didn't Know You Wanted. Perimeter Sub-slab Insulation. .
Installing Rigid Foam Above a Concrete Slab - GreenBuildingAdvisor
Open or closed cell for roof and conditioned attic : r/Homebuilding
The Detail You Didn't Know You Wanted. Perimeter Sub-slab Insulation. .
insulation Archives - Hansen Buildings
Inspecting Spray-Foam Insulation Applied Under Plywood and OSB Roof Sheathing - InterNACHI®
spray foam Archives - Hansen Buildings
Does Foam Insulation Keep CMUs From Drying? - Fine Homebuilding
What's the Best Way to Insulate a Basement Slab? - GreenBuildingAdvisor
Sub Slab Spray Foam Insulation, Kingsport, Bristol
CLOSED CELL SPRAY FOAM UNDER A CONCRETE SLAB