LIGHTWALL 3440®
Tongue & Groove Translucent Wall System
Elevate your building performance with the LIGHTWALL 3440®. Featuring both 40 and 50mm polycarbonate thick ‘tongue & groove’ panels, this system provides a simple installation and overall smooth appearance. Our LIGHTWALL 3440® system is unique in many ways and can extend up to 54 feet vertically.
System Benefits
Daylighting
Diffuses natural light deep into interior spaces
Thermal Performance
40mm or 50mm insulating cellular polycarbonate panels
Long Spanning
Vertical spans up to 54 ft. (40mm)
Design Flexibility
Multiple colors, translucencies, and coatings
Durable Construction
UV-resistant polycarbonate and aluminum framing
EXPLORE THE SYSTEM
PANEL SYSTEM
• 500mm wide tongue & groove panels
• Clear, opal, or various colors/translucencies available, with IR & AR options
• Uv-resistant co-extruded layer
• Up to R-5.26 / 0.19 U-factor (50mm clear/opal) and R-3.57 / 0.28 U-factor (40mm clear/opal)
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ALUMINUM FRAMING SYSTEM
• Double interior/exterior gaskets
• Optional thermal break
• Deep rabbets for thermal expansion
• Weep hood to prevent water infiltration
• Aluminum glazing clips
APPLICATIONS
Adaptable to a range of building types. Below is a sample of common applications.
performance & design options
Thermal Performance
50 mm
U-factor: 0.19 | R-value: 5.26 (clear/opal)
40 mm
U-factor: 0.28 | R-value: 3.57 (clear/opal)
Contact us for performance testing for specific panel types. Values may vary depending on panel color, finish, and PC manufacturer.
Material & Glazing Options
Glazing Options:
- Class A option
- Infrared blocking & anti-reflective options
- 7-wall 40mm panels
- 11-wall 50mm panels
- Standard colors: Clear, opal, bronze, green with custom color options available
Testing & Standards
Flammability Testing
- Self-ignition: ASTMD-1929
- Smoke Density: ASTM D-2843
- Burn Extent: ASTM D-635
- Interior Flame Spread: ASTM E-84
Weathering
- Color Change: ASTM D-2244
- Yellowing Index: ASTM D-1925
- Light Transmission: ASTM D-1003
Miscellaneous
- Air Infiltration: ASTM E-283
- Water Infiltration: ASTM E-331
- Load Bearing Capability: E-330
- U-Value: NFRC
LIGHTWALL 3440® Installation Instructions
HAVE AN EXISTING PROJECT?
LIGHTWALL 3440® CASE STUDIES
Case Study: Franklin County, PA Completes Major Courts Renovation Project, Featuring EXTECH’s LIGHTWALL and SKYSHADE Systems
Strongspan
Embedded at the tongue and groove connection, STRONGSPAN integrates with this system to extend spanning capabilities.
Polycarbonate Corners
For a sleek and continuous appearance to your translucent wall system, polycarbonate corners are available to elevate your next project.
NOT SURE WHICH SYSTEM FITS YOUR PROJECT?
We can help you find your best fit.
EXTECH works with architects and design teams from early concept through specification, helping evaluate system options, performance requirements, budget, detailing, and constructability.
