Bozeman Public Safety Center
- EverGuard® TPO 60 mil smooth membrane
- GAF SA Vapor Retarder XL Self-adhered vapor-inhibiting membrane
- EverGuard® TPO Quick Spray Adhesive Sprayable, solvent-based contact adhesive
- EnergyGuard™ Polyiso Insulation Flat and tapered panels
- EnergyGuard™ HD Cover Board Highest R-value cover board at 2.5 (tested in accordance with ASTM C518)
About the Bozeman Public Safety Center
As seen in Roofing Contractor MagazineThe Bozeman Public Safety Center houses the Bozeman Police Department, a fire station, the Municipal Courts and Prosecution and Victim Services. The ambitious new construction project encompasses 95,000 square feet. The facility needed a roof system that would withstand the tough Montana winter weather for decades to come.
The architect on the project, ThinkOne Architecture, specified a TPO system from GAF, which was installed by Summit Roofing, a GAF Master Select Commercial Roofing Contractor with offices in Missoula and Helena, Montana.
The 55,000-square-foot roof deck was first covered with GAF’s SA XL self-adhered vapor retarder, which was directly applied to the deck. It was topped with two 3-inch layers of polyisocyanurate insulation — the first mechanically attached, the second adhered. Tapered polyiso was adhered to flat roof sections to ensure proper drainage. After a half-inch layer of high density polyiso was adhered, 60-mil GAF TPO membrane was fully adhered using GAF Quick Spray adhesive. Crews from Summit Roofing installed approximately 55,000 square feet of 60-mil TPO from GAF. “The system provides both the uplift resistance and longevity that is required for a government building that is expected to be in service for many years,” says Mike Chrismer, Senior Territory Manager, GAF.
A Great Fit
Installation challenges included blustery weather conditions. “Some of the project was installed in the winter with limited temperatures,” notes Chrismer. “We had to take special precautions to make sure all the adhesives were at the correct temperature during installation. This included storing them in a heated area and using heat blankets for the tanks.” Safety was the top priority, according to Bill Johns, president of Summit Roofing. “The main concern is always fall protection,” he says. “This project had ten different deck areas and various roof elevations. Some roof areas required 100 percent fall protection; others utilized safety railing and a preventative warning system. Weather in Bozeman is always a safety concern.”
Teamwork was needed to cope with a supply chain that was stretched thin by the effects of COVID-19. “Since the pandemic, sourcing everything has been a challenge,” Chrismer says. “It took a lot of cooperation among the partners, including the general contractor, Langlas & Associates, to help unload, store and stage material for this project. GAF is committed to delivering best-in-class service for our customers, which is crucial to our goal of becoming the leader in the commercial roofing industry,” Chrismer concludes. “As such, despite the supply chain issues, GAF was able to pull product from several of our facilities across the U.S. to facilitate this project amid supply chain issues. We also shared our SA XL vapor retarder as a test project, which worked well and adhered to the deck.”
Summit Roofing — Missoula, MTSummit Roofing is an established commercial roofing company, specializing in single-ply membrane roofing, and works all across the state of Montana.
Great performance in a value-priced TPO roofing system.
Self-adhered vapor-inhibiting membrane
Slope, high thermal value panel with glass fiber reinforced cellulosic felt facers (GRF) bonded to a core of isocyanurate foam
High thermal value panel with glass fiber reinforced cellulosic felt facers (GRF) bonded to a core of isocyanurate foam
Related Case Studies
Requires extensive sustainability criteria, including Living Building Challenge Red List free materials, solar panels, and rooftop rainwater collection
One of the world’s largest IT facilities received a completely new TPO roof system totaling more than 200,000 roof squares.
This 200,000-plus square-foot site that hosts 300-plus events every year received an upgrade to its 20-year-old roof.
Center for indoor sports and recreation in Orland Park, IL, requiring a roof system without the use of fasteners that might compromise its noise-deflecting acoustical metal