American Nfrc Standard Double Glazing Aluminum Sliding Doors/Folding Doors/Casement Doors

American Nfrc Standard Double Glazing Aluminum Sliding Doors/Folding Doors/Casement Doors. Good water resistance of windows and doors. Sliding Door: Water tightness up to 720 Pa according to applicable U.S. standards. Our high-performance configurations can be tested according to ASTM E90 for airborne sound transmission. Through optimized aluminum profiles, thermal-break technology, high-performance Low-E glass, insulated glass units and carefully engineered sealing systems, our products can achieve excellent thermal.