Description

Basement Window Awning Features

Our basement awning windows combine ​weatherproof performance with ​below-grade functionality, engineered specifically for subterranean installations. Featuring heavy-gauge aluminum frames (1.6mm thickness, ASTM B221 compliant) and sloped sill designs, these units deliver:
​Dual drainage system – Channels 2.5″ hourly rainfall away from window wells
​Enhanced security – Multi-point locking system meets ASTM F2090 Grade 40 standards
​Condensation control – Thermal break technology reduces moisture buildup by 68%

Technical specifications include:
​Low-profile operation – Out-swing clearance under 4″ for tight exterior spaces.
​Impact-resistant glazing – 6mm laminated glass withstands 150 PSF soil pressure .
​R-value 5.0 insulation – Expanded polyurethane foam core with 0.29 U-factor.

Benefits of Basement Window Awnings

1. Optimized Below-Grade Ventilation
​45° outward opening – Creates chimney effect airflow (32 CFM ventilation capacity) while blocking debris
​Humidity sensors – Optional automated operation maintains 45-55% RH levels.

2. Weather Defense System
​Hydroshield sill – 7° slope directs water flow at 1.5 GPM capacity.
​Ice barrier prep – Compression gasket remains flexible at -30°F.

3. Security & Emergency Compliance
​Egress-ready sizing – 20″x24″ minimum opening meets IRC Section R310.
​Shatterproof design – Meets CPSC 16 CFR 1201 Category II impact rating.

4. Energy-Smart Construction
​Solar Heat Gain Coefficient 0.27 – Low-E coating blocks 73% UV radiation.
​Air infiltration <0.3 CFM – Triple weatherstripping exceeds ENERGY STAR® requirements.

5. Maintenance-Free Durability
​Galvalume® coating – 35-year warranty against corrosion.
​Self-cleaning glass – Photocatalytic coating reduces exterior cleaning by 80%.