Aluminum alloy grade B fire-resistant Windows for cold regions

A key advantage is balanced Class B fire safety and cold-climate durability. Fire performance meets Grade B standards: steel-reinforced frames, expanding seals, and fire glass block flame/smoke for 1h, ensuring evacuation time. Cold-adapted features outperform generic fire windows: thickened thermal breaks cut heating costs by 35–45% vs. non-cold models, while triple-pane argon glazing eliminates frost (common in single/double-pane units in cold regions). Anti-freeze hardware avoids winter jamming (a flaw in standard fire windows), and snow-resistant frame designs (sloped sash tops) prevent snow accumulation that could damage sashes. Aluminum frames offer corrosion resistance (withstanding salt-laden cold winds, better than wooden fire windows) and lighter weight than steel (reducing building load). The Low-E coating also blocks UV rays, protecting interiors from fading while retaining solar heat—an extra cold-region benefit. Customizable finishes (powder-coated, anti-peeling) resist c…