Closed-cell
About R-6 to R-7 per inch. Water-resistant and a complete air barrier. Acts as a vapor retarder, adds racking strength, and is the right call in crawls, rims, and many exteriors.
Spray foam
Spray foam fills every void — especially irregular cavities — and raises thermal and acoustic performance in walls, roofs, and floors.
About R-6 to R-7 per inch. Water-resistant and a complete air barrier. Acts as a vapor retarder, adds racking strength, and is the right call in crawls, rims, and many exteriors.
About R-3.6 to R-3.8 per inch. Expands to fill bays, excellent sound control, cost-effective coverage on interiors and vaulted ceilings.