Ultra-low energy consumption aluminum alloy grade B fireproof window

Proper installation/maintenance preserves ultra-low energy and fire performance. Certified technicians (trained in energy-efficient fire windows) must anchor frames with corrosion-resistant stainless steel fasteners, sealing frame-wall gaps with airtight, fire-rated sealant (not generic caulk) to maintain air permeability standards. Align sashes precisely—misalignment breaks airtightness and fire seals. Lubricate hardware annually with energy-saving, non-toxic lubricant (avoiding oil that degrades gaskets). Bi-annual inspections check: thermal breaks (no cracks), glazing seals (no krypton leakage, tested via U-value monitoring), fire seals (no hardening), and weatherstripping (no wear). Clean glass with mild, non-abrasive cleaners to protect Low-E coatings (scratching reduces energy efficiency). Damaged parts (cracked glass, worn weatherstripping) need manufacturer-approved, energy-efficient replacements—generic parts void fire/energy ratings. Never modify post-manufacturing (cutting/d…