How do we specify glass railings?

  • By Dan Stachel
  • 06/01/19

Glass design and engineering analysis can be inconsistent across projects. There are several possible reasons for this including the treatment of guardrails as a product rather than an engineered structure, general inexperience with glass as an engineered material, and limited access to glass design software in the U.S.

To ensure you have all the pertinent details, ask suppliers to provide you with a comprehensive proposal, including detailed takeoffs with specific inclusions or exclusions for each railing style within the project scope. These details should include aspects such as finish, linear footage, structural attachment, and makeup. Additionally, request a submittal package that includes 3D renderings based on the architectural and structural specifics for the project.

High-definition surveying (HDS) technology offers tremendous benefits over conventional surveying. It allows for the capture of thousands of critical measurements with precision accuracy, thereby significantly reducing the need for fabrication rework. It also offers a much faster track to the manufacturing process by eliminating the risk of human error and saving weeks of manual field measuring.

Regardless of the method selected for analysis, there are two key principles that should be considered when specifying glass railing: the elastic properties of laminate interlayers (and how they change with temperature and load duration), and understanding that local stresses—e.g., contact materials, support size, and hole size—are critical. In light of these varying factors, it’s recommended that a good finite element program be used to accurately determine glass stresses instead of any manual analysis.

Glass analysis is the most critical aspect of specifying point-supported glass due to life-safety factors. It’s essential that those who have a stake in a project understand this and take appropriate measures to ensure that building code requirements are met.

This article originally appeared in the College Planning & Management June 2019 issue of Spaces4Learning.

About the Author

Dan Stachel is vice president of Trex Commercial Products (www.trexcommercial.com).

Featured

  • Pfluger Architects Hires New Higher Ed Practice Leader

    Pfluger Architects, based in Houston, Texas, recently announced Christopher Laack as its new higher education practice leader, according to a news release. Laack has more than 20 years of experience as a licensed architect and most recently served as the Principal and Commercial Practice Leader for VLK Architects.

  • Oregon Institute of Technology to Construct $35M Mass Timber Residence Hall

    Oregon Institute of Technology in Klamath Falls, Ore., recently announced the construction of a new, $35-million mass timber residence hall, according to college news. The facility will stand four stories, have room for 517 students, and cover 86,710 square feet to address the college’s need for more on-campus housing.

  • Greenheck Launches New Series of Rooftop Units

    Air movement, control, and conditioning solutions provider Greenheck recently launched a new line of rooftop units that merge the conveniences of traditional rooftop ventilators and dedicated outdoor air systems, according to a news release. The Model RT controls temperature and humidity for indoor comfort.

  • Boosting Student Wellness and Safety Through Indoor-Outdoor School Spaces

    Engaging students through facilities designed for indoor and outdoor learning and activities reflects a growing awareness of how children learn and thrive, with educators recognizing the importance of getting outside and disconnecting from technology. And, as today’s youth grapple with the urgent mental health crisis of increased anxiety and loneliness fueled by both the pandemic and technology, along with a related crisis in youth physical health, the wellness benefits of getting outside have never been so palpable.