Cool Roofs Lower Building Energy Demand
Last year, the eighth consensus-based sustainability standard — NSF/ANSI 347, Sustainability Assessment for Single Ply Roofing Membranes — developed through NSF for building products went into effect.
Last year, the eighth consensus-based sustainability standard — NSF/ANSI 347, Sustainability Assessment for Single Ply Roofing Membranes — developed through NSF for building products went into effect.
OAK RIDGE, Tenn.