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LIGHTWALL 3440®

TONGUE & GROOVE 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.

Translucent Wall Systems for Universities

UNIQUE FEATURES

  • Double gasketed interior and exterior perimeter framing
  • Optional thermally broken frame
  • Weep hood to prevent water infiltration
  • Aluminum glazing clips (typically fastened to interior horizontal supports)
  • Deep rabbets for thermal expansion

GLAZING DETAILS

  • 500mm (19-11/16”) wide tongue and groove cellular polycarbonate
  • [.19 U-factor, R-5.26] for 50mm panels (clear/opal)*
  • Co-extruded with a UV resistant layer
  • [0.28 U-factor, R 3.57] for 40mm panels (clear/opal)*
  • Available in various colors and translucencies, with IR or AR coating options

* Please contact us for performance testing for specific panel types. Values may vary based on panel color, finish (IR/AR/Matte, etc.), and polycarbonate manufacturer.

TYPICAL APPLICATIONS

  • Schools
  • Aircraft hangars
  • And more...
  • Office buildings
  • Military buildings
  • Recreational facilities
  • Commercial buildings
  • Government buildings
  • Interior backlit walls

LIGHTWALL 3440® 3D scenes

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3440 CAD

3440 BIM

3440 Spec

3440 Detail

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

Anodize Colors

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Paint Color Selection Guide

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Leed Info

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3440 Brochure

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LIGHTWALL 3440® CASE STUDIES

Click an image to read more about our latest projects

LIGHTWALL 3440 Translucent Wall System

Case Study: STRONGSPAN Solution for Gymnasium Windows

Translucent Wall System

Case Study: Rogue Primary School

HAECO Translucent Panels for Aircraft Hangar Doors

Case Study: HAECO America’s New Hangar at PTI

Blue Cube Polycarbonate Wall System

Case Study: Display at the Ocean Explorium

LIGHTWALL 3440 Aircraft Hangar

Case Study: DuPage Airport Authority Hangar

Pathways Innovation Center - LIGHTWALL 3440

Case Study: Pathways Innovation Center & Roosevelt High School

Translucent Polycarbonate Walls- Logan Airport Hangar - Boston, MA

Case Study: Boston Logan International Airport Hangars

Eleanor Boathouse Translucent Walls

Case Study: The Eleanor Boathouse at Chicago’s Park 571

Translucent Wall System - LIGHTWALL 3440 - Temple

Case Study: Leo Baeck Temple

Translucent Wall System - LIGHTWALL 3440 - Holbrook School

Case Study: Holbrook School and JFK Elementary

Convention Center Backlit Facade

Case Study: Waterloo Convention Center

Canopy System - Government Facility

Case Study: Franklin County, PA Completes Major Courts Renovation Project, Featuring EXTECH’s LIGHTWALL and SKYSHADE Systems

LIGHTWALL 3440 Translucent Wall System - Athletic Facility

Case Study: Beloit College Powerhouse

LIGHTWALL 3440 Translucent Wall System - Performing Arts Center

Case Study: Glorya Kaufman Performing Arts Center Translucent Wall System

Industrial retrofit - LIGHTWALL 3440 wall system

Case Study: Factory Window Retrofit with LIGHTWALL 3440

Industrial retrofit - Polycarbonate wall system

Case Study: FID Kennedy Revitalization

Translucent Wall System for Education Facility

Case Study: John McCain III Elementary

Interior translucent wall panels

Case Study: Mixed-Use Bronx Post Office

Interior Translucent Wall System - Sandi Simon Center for Dance

Case Study: Sandi Simon Center for Dance Retrofit

Backlit Facade - NYC Times Square

Case Study: Times Square NY Retailer Backlit Translucent Wall System

Buffalo Convention Center - Backlit Polycarbonate Facade

Case Study: Buffalo Convention Center Backlit Facade

LIGHTWALL 3440 - Field House Translucent Walls

Case Study: Delbarton Field House

Printed Polycarbonate Panels

Case Study: Jackie Robinson Museum

OSU Energy Innovation Center

Case Study: Ohio State Energy Advancement & Innovation Center

Translucent Wall System for Athletic Facility - Anderson Fieldhouse

Case Study: Anderson Field House

industrial building

Case Study: Industrial Window Renovation for Pittsburgh Manufacturing Facility

Translucent Wall System - Beaverdam Reservoir Boathouse

Case Study: Polycarbonate Cladding for Virginia Boathouse Facility

LIGHTWALL 3440®

INSTALLATION Guide

LIGHTWALL 3440® GALLERY

Translucent wall system
LIGHTWALL 3440 Glorya Kaufman Performing Arts Center
LIGHTWALL 3440 Beloit College
Translucent wall system - LIGHTWALL 3440
Translucent Wall System - LIGHTWALL 3440 - Holbrook School
Industrial Window Renovation - Norfolk Southern Railyard
Backlit Facade - NYC Times Square

LIGHTWALL 3440® OPTIONAL ACCESSORIES

STRONGSPAN Mullion

Strongspan

Embedded at the tongue and groove connection, STRONGSPAN integrates with this system to extend spanning capabilities.

Polycarbonate corner

Polycarbonate Corners

For a sleek and continuous appearance to your translucent wall system, polycarbonate corners are available to elevate your next project.

EXTECH
200 Bridge St., Pittsburgh, PA 15223
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LIGHTWALL 3440