d079b06a_on___Green_Home_Guide_by_USGBC__Application_Tips
[Material] Polyisocyanurate Foam Insulation [Pros] * No hydrochlorofluorocarbons (HCFCs) * Typically no indoor air quality effects [Cons] * Made from petrochemicals * Not recyclable [Application Tips] 
Foam insulation boards. Appropriate for larger projects or new construction in areas with low to no moisture. Choose closed-cell option for higher moisture areas. Best for interior basement walls, beneath siding, and attic ceilings.
Buyer’s Guide to Green Insulation - Green Home Guide by USGBC
Application Tips