NCFI InsulStar Closed-Cell Spray Polyurethane Foam Insulation

NCFI. Made from up to 20% renewable agricultural products, InsulStar closed-cell spray polyurethane foam insulation provides R-values higher than R-6 per inch, helping to lower energy bills by as much as 60%, the maker says. The material requires only 2×4 studs for complete insulation, as opposed to the 2×6 studs required by many batt materials. This makes InsulStar ideal for reinsulating homes with 2×4 exterior walls. The material is designed to resist settling, shrinking, compressing, and sagging for the life of the structure. 866.678.5283. www.ncfi.com.