Building Enclosure logo
search
cart
facebook twitter linkedin youtube instagram Spotify Podcasts Apple Podcasts Spotify Podcasts Apple Podcasts
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Building Enclosure logo
  • NEWS
    • Breaking News
  • SECTIONS
    • Columns
    • Project Profiles
    • Trade Shows
    • Sponsor Insights
  • SYSTEM DESIGNS
    • Low-Slope Roofs
    • Pitched Roofs
    • Metal Roofing Materials
    • Waterproofing
    • Sustainability
    • Insulation
    • Exterior Claddings
    • Wall Systems
    • Building Envelope
  • BLOG
    • The BE Blog
  • MEDIA
    • Podcasts
    • Webinars
    • Quiz
    • Videos
    • Polls
    • Interactive Spotlights
    • Newsletter
    • Photo Galleries
  • DIRECTORIES
    • Directory: Blue Book
    • Directory: Roofing Resource
  • PRODUCTS
  • TECHNICAL
    • Codes
      • Waterproofing
      • Roofing
    • Details
      • Waterproofing
      • Roofing
  • CONTINUING ED
  • ABOUT
    • Advertise
      • Editorial Calendar
    • Contact
    • eMag Archive Issues
  • SIGN UP!
Products

Interlocking Polycarbonate Translucent Wall System

LIGHTWALL 3440
Photo courtesy of Barry Schwartz Photography and EXTECH Inc.
LIGHTWALL 3440 2
Photo courtesy of Barry Schwartz Photography and EXTECH Inc.
LIGHTWALL 3440 3
Photo courtesy of Barry Schwartz Photography and EXTECH Inc.
LIGHTWALL 3440
LIGHTWALL 3440 2
LIGHTWALL 3440 3
November 20, 2017

The LIGHTWALL 3440 interlocking polycarbonate translucent wall system from Exterior Technologies Inc. (EXTECH) contributes to the aesthetic, performance and sustainability goals of agricultural and manufacturing facilities, airport hangars, parking garages, retail centers, hotels, schools and places of worship.

"As our most popular product, the LIGHTWALL 3440 offers a beautiful, durable and economical solution for building envelopes and skylights," says EXTECH Director of Product Application and Development Kevin Smith, R.A.

Among its project success stories is the Leo Baeck Temple in Los Angeles featuring EXTECH's LIGHTWALL 3440 system as a skylight capping its Jewish community campus center. Approximately 8 feet tall and 145 feet around and possessing many and varied angles, the translucent polycarbonate skylight conveys the sense of a floating gem with an ethereal glow.
 
To achieve a diamond-like look and precision, EXTECH provided its LIGHTWALL as a tongue and groove system customized to the structure. In addition to EXTECH, the project's design and building team included Architect 350, Sierra Pacific Constructors and Cal Pac Sheet Metal. Close collaboration was necessary to guarantee a seamless integration and installation.

"One challenge, from an engineering aspect, was getting our facets to match the face of the steel structure to which the system would attach," explains Smith. "As part of our shop drawing and fabrication process, we ensured a weather-tight building envelope by pre-fabricating all the corner miters and sloped head/sill/jamb conditions to exact angles before shipping to the job site. This was a quality control measure that guaranteed each piece of the roof cap would fit precisely without the need for field measuring and cutting, which substantially accelerated Cal Pac Sheet Metal's installation process."
 
Lightweight, easy to install and backed with a 10-year warranty, the LIGHTWALL system helps construction teams facing condensed schedules, and facility managers seeking low-maintenance longevity. "Our LIGHTWALL 3440 system can extend up to 54 feet long and eliminate leak-prone horizontal joints," Smith continues. "It meets demanding performance specifications, including high wind loads, impact resistance, fire rating, air infiltration, water penetration, thermal (0.25 U-Factor) and structural performance."

The temple's finished skylight not only achieves the desired aesthetic and performance, but also supports Leo Baeck Temple's environmental standards. LIGHTWALL 3440 uses highly insulating, 100 percent recyclable, 40 mm structural cellular polycarbonate and 38.95 percent recycled aluminum framing. "Our LIGHTWALL system does not require framing members within the field of the glazing, which allows for a clean, modern architectural aesthetic," notes Smith.
 
In addition to its recyclability and modern appearance, the polycarbonate skylight provides energy-efficient daylighting and reduces solar heat gain to keep people comfortable within the space during congregant activities and concerts. Viewed from the exterior, the diffusing characteristics of cellular polycarbonate reduce light pollution emanating from the building, which contribute to making it a good neighbor within California's San Fernando Valley.

KEYWORDS: daylighting walls

Share This Story

Looking for a reprint of this article?
From high-res PDFs to custom plaques, order your copy today!

 

Recommended Content

JOIN TODAY
to unlock your recommendations.

Already have an account? Sign In

  • bar graph shows LEED v4/LEED v5/LEED v6 in various colors

    When Will LEED v4 / v4.1 and LEED v5 Expire?

    The latest version of the LEED rating system, LEED v5, is...
    Sustainability
    By: Daniel Overbey
  • Celebrating Women In AEC-2026

    Celebrating Women in The AEC Industry Part 1

    A round-up of women in the design, engineering and...
    Building Envelope
    By: Lindsay Lewis
  • KEE membrane application on a roof

    A Beginner’s Guide to Single-Ply Roofing Membranes

    While PVC and TPO appear extremely similar, the chemistry...
    Low-Slope Roofs
    By: Peter Gross
Manage My Account
  • Sign up for the Newsletter
  • Online Registration
  • Manage My Preferences
  • Registration Customer Service

More Videos

Sponsored Content

Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the Building Enclosure audience. All Sponsored Content is supplied by the advertising company and any opinions expressed in this article are those of the author and not necessarily reflect the views of Building Enclosure or its parent company, BNP Media. Interested in participating in our Sponsored Content section? Contact your local rep!

close
  • HITT Construction headquarters
    Sponsored byBuilding Composites® LLC

    Pushing the Envelope

  • 2 construction workers and a DEXcell panel
    Sponsored byDEXcell Roof Boards

    Designing Low-Slope Roofs for Resilience

  • Bell Bank headquarters in Fargo, North Dakota
    Sponsored bySto Corp.

    Drained and Back-Ventilated Rainscreens vs Pressurized-Equalized Rainscreens

Popular Stories

graphic shows white arrows pointing to the right on a light green background

A Breakdown of Air Leakage Testing in LEED v5 BD+C

Open vs. closed cell foam in an attic

Open-Cell vs. Closed-Cell Spray Foam

skyscraper

NYC Tower Failure Offers Warning for Contractors

Building Enclosure Newsletter

BE Poll

Events

April 9, 2026

Strategies for High-Performance Below-Grade Waterproofing

Credits: 1 AIA LU/HSW ; 1 IIBEC CEH; 0.1 IACET CEU

On-Demand Designing a high-performance building enclosure requires more than just surface-level protection; it demands a rigorous, performance-based mastery of below-grade water and gas mitigation. This discussion will provide an expert-level analysis of below-grade waterproofing within the comprehensive framework of the high-performance building enclosure.

April 28, 2026

Roof Design Considerations That Prevent Installation Failures and Change Orders

Credit: 1 AIA LU/HSW; 1 IIBEC CEH; 0.1 ICC CEU

On-Demand This course provides visual examples of actual field conditions. Some good, some not so good; along with design suggestions that can cut installation costs and reduce construction change orders. Upon completion of this course, you will have a better understanding of the requirements the roofing contractor must meet to provide the specified roofing system warranty, and long-term value to the owner.

View All Submit An Event

Products

Plaster and Drywall Assemblies Manual

Plaster and Drywall Assemblies Manual

This is a comprehensive manual that goes beyond codes and standards, providing expert guidance in design, detailing, material selection and troubleshooting for plaster and drywall.

See More Products

Related Articles

  • EXTECH

    Interlocking Polycarbonate Translucent Wall System

    See More
  • by Nic Lehoux, courtesy of EXTECH *

    Performing Arts Center Transforms with Interlocking Translucent Wall System

    See More
  • EXTECH

    Wine Production Facility Pairs Perfectly with Translucent Wall System

    See More

Related Products

See More Products
  • energy modeling.jpg

    Energy Modeling and Computations in the Building Envelope

  • Classified Ad Listing

  • 007145828X.jpeg

    Manual of Low-Slope Roof Systems Fourth Edition

See More Products
×

Enhance your expertise with unparalleled insights.

Join thousands of building professionals today. Shouldn’t you know what they know?

SUBSCRIBE TODAY!
  • RESOURCES
    • Advertise
    • Contact Us
    • Store
    • Want More
  • SIGN UP TODAY
    • Create Account
    • Newsletter
    • Customer Service
    • Manage Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey/Respondent Access
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • Instagram
    • YouTube
    • X
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2026. All Rights Reserved BNP Media, Inc. and BNP Media II, LLC.

Design, CMS, Hosting & Web Development :: ePublishing