Generally offers R-3.8 to R-6.5 per inch, depending on the type.
Pros
Lightweight and easy to handle.
High insulating value with minimal thickness.
Water-resistant properties that prevent moisture accumulation. –
Cons
More expensive than fiberglass options.
Vulnerable to UV degradation if not covered.
Spray Foam Insulation
Spray foam insulation is applied as a liquid that expands and solidifies, creating an airtight seal that reduces air leaks.
R-value
