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

  • Year-Round Schools Require Year-Round Indoor Air Quality Planning

    While many schools are out for the summer, year-round schools follow a more “balanced” schedule with shorter, more frequent breaks spaced throughout the school year. Even though this offers educational benefits, these facilities have less downtime for building maintenance. This can become an issue when facilities managers overlook the importance of routine HVAC maintenance and air duct cleaning services.

  • University of Pennsylvania Releases Design of Future Physical Sciences Building

    The University of Pennsylvania (Penn) in Philadelphia, Penn., recently released renderings of an upcoming 350,000-square-foot Physical Sciences Building, according to news release. The facility was designed by CO Architects and will unite the university’s departments of Physics and Astronomy, Mathematics, and Earth and Environmental Science.

  • UT-San Antonio Begins Residence Hall Renovations

    The University of Texas at San Antonio recently began a $6-million renovation project to one of its residence halls, according to a news release. Originally completed in 1986, Chisolm Hall measures in at 120,860 square feet and is the oldest and largest residence hall on campus.

  • California High School Opens New Classroom Building for 7th-, 8th-Graders

    Santa Rosa City Schools in Santa Rosa, Calif., recently announced the completion of a new classroom building for Piner High School. As the campus transitions to a Junior/Senior High School, the facility will play home to the school’s new population of seventh- and eighth-grade students.