Spray-Foam InsulationFrom Icynene

Icynene

LD-R-50 spray-foam insulation is made from natural castor oil, which eased the mind of one MVP judge. "The building-envelope benefits of spray-foam insulation are well documented, but the petroleum-based nature of the product was problematic relative to green building," he said. "Problem solved." The production of castor oil requires no pesticides or man-made irrigation. The insulation is 100 percent water-blown and free of HFCs. Cost: walls, $1.35 to $1.50 per square foot; roof decks, $1.65 to $1.85 per square foot. 800-758-7325. www.icynene.com.

• Pocket Guide
• Product Spec Sheet
• Product Video