06/19/2026
If you've gotten spray foam quotes, you've probably heard "open-cell" or "closed-cell" without much of an explanation. The question worth asking any contractor: "Why are you recommending that type for this specific location?" The answer tells you a lot.
Comparing open-cell and closed-cell spray foam for a Michigan home? Here's what most contractors don't explain, and why the right choice depends on where it's going.