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Fortress Windows
Fortress Windows
Designed for strength and the ability to blend into nearly any space, allowing seamless integration into any wall condition.
⚙️ Smooth OperationEquipped with sealed stainless steel ball bearing rollers, making the bi-fold door exceptionally easy to operate.
🛡️ Tested for DurabilityEach product family is rigorously tested for air, water, and structural performance, certified by NFRC and AAMA standards.
🌡️ Climate Ready GlassFeatures dual-paned low-E glass for superior energy performance, customizable in various types and thicknesses for thermal efficiency.
🔒 Concealed Locking SystemIncludes a hidden stainless steel multi-point lock to secure large panels, providing additional strength and protection.
| Performance Metric | Rating / Value | Level |
|---|---|---|
| Thermal Insulation | 3.8 ≥ U ≥ 2.0 W/m2k | 3~6 Level |
| Acoustic Performance | 28dB ~ 40dB | 2~4 Level |
| Water Tightness | 350~600Pa | 4~8 Level |
| Air Tightness | 5.5m3/(m2·h) | 5 Level |
| Wind Load Resistance | 3.0~4.0 Kpa | 5~7 Level |
Secure 6-Step Protection:
1. Protective tape for frames; 2. Fixed on wood pallets; 3. Secured with plastic belts; 4. PE films for moisture protection; 5. Air bags for gap filling; 6. Container reinforcement.
