Skip to main content
Add as a preferred source on Google

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

  • College of the Desert Hits Construction Milestone on New Campus

    College of the Desert recently announced that the construction of its new Palm Springs Campus in Palm Springs, Calif., recently reached a major construction milestone, according to a news release. The college is partnering with general contractor C.W. Driver Companies, which recently “topped out” the facility by placing the final beam in its structure.

  • Moline-Coal Valley School District to Consolidate Two Schools into New Facility

    The Moline-Coal Valley School District in Moline, Ill., recently broke ground on a new elementary school that will consolidate the students and staff from two existing schools, according to local news. Robert Ontiveros Elementary School will serve as the new home for Lincoln-Irving Elementary School and Willard Elementary School.

  • Northeastern University Breaks Ground on New Housing Community

    Northeastern University recently announced the groundbreaking of a new student housing community on its campus in Boston, Mass., according to a news release. The university is partnering with American Campus Communities (ACC) for development of the project, which will have the capacity for 1,200 students and has a scheduled completion date of fall 2028.

  • Hawaii Elementary School Breaks Ground on New Classroom Building

    Kealakehe Elementary School in Kailua, Hawaii, recently began construction on a new, $16-million classroom building for its campus, according to a news release. The 13,000-square-foot building will stand two stories and connect the existing upper and lower campuses.