Description

Triple Single Hung Window Features

Our triple single hung windows combine ​emergency egress compliance with ​triple-glazed energy efficiency, engineered for basement safety and climate control. Featuring three 4mm glass panes with argon/krypton gas fills and a lift-out bottom sash, these units deliver:

​Code-compliant escape – 20″×36″ clear opening exceeds IRC 2025 egress requirements
​Advanced insulation – U-factor 0.22 outperforms standard single-pane windows by 63%
​Shatter protection – Laminated inner layer meets CPSC 16 CFR 1201 safety standards

Technical innovations include:
​Thermal spacer – 16mm polyamide barrier prevents condensation (<30% RH)
​Hybrid frames – Fiberglass-reinforced vinyl withstands 200 PSF wind loads (ASTM E330)
​UV-blocking – Low-E coating rejects 72% solar heat gain (SHGC 0.19)

Benefits of Triple Single Hung Windows

1. Energy & Space Efficiency
​**$520/year savings** – Triple glazing reduces HVAC costs 31% vs single-pane models
​Vertical operation – Requires only 6″ clearance for space-constrained installations

2. Climate Defense
​​-40°F to 120°F stability – Gas-filled chambers prevent seal failure in extreme temps
​Sound isolation – STC 38 rating blocks 87% urban noise

3. Safety & Compliance
​5-second egress – Tool-free sash removal meets NFPA 101 emergency standards
​Child-safe – 4″ maximum opening prevents falls (ASTM F2090 compliant)

4. Maintenance & Security
​Tilt-in cleaning – Access both glass surfaces from indoors
​Multi-point locks – Withstand 250lb forced entry attempts

5. Sustainable Value
​30-year lifespan – Oxidation-resistant spacers maintain seal integrity
​Carbon offset – Gas fills reduce annual CO₂ emissions by 1.2 tons per window