Johns Manville makes building insulation, roof insulation, and specialty products for commercial, industrial, and residential applications. Product offerings include: formaldehyde-free fiberglass building insulation,
roof insulations, and filtration media.
DuPontT Tyvek® resists air infiltration and water intrusion and makes for a more comfortable, energy-efficient home or building.
Enerfoil is a rigid polyisocyanurate insulation sheathing. It provides high thermal resistance of R6 per inch for improved energy efficient performance of walls. Enerfoil's Energy Star certification means that it clearly contributes to reducing energy consumption.