The final layer of defense for North America's most iconic buildings.
At the Peter Ross Group, we bring over 60 years of detailing expertise and field execution to the continent's most challenging commercial projects. We engineer comprehensive, multi-layered systems designed to integrate flawlessly with your entire building envelope.
How We Engineer Roofing Solutions
Our specialized teams deliver precision and performance across a full spectrum of commercial roofing systems:
- Inverted Roof Membrane Assemblies (IRMA): High-performance waterproofing applied directly to the roof deck, protected by premium insulation and ballast.
- Conventional Roofing Systems: Flawlessly executed traditional assemblies, from vapor retarder to cap sheet, tailored for specific weight and design requirements.
- Roof Paver Systems: Heavy-duty paver installations that protect underlying membranes while creating durable, accessible spaces for mechanical equipment or occupant amenities.
- Green Roofs & Planters: Specialized waterproofing and root-barrier systems designed to support living roofs without compromising structural integrity.
Why Our Division 7 Expertise Matters
A roof is just one part of the building envelope. It has to tie seamlessly into the exterior cladding, the pedestrian terraces, and the metal flashing.
As a full-scope Division 7 contractor, the Peter Ross Group (alongside our family of companies including Pacific Waterproofing, Universal Polymers, WeatherSeal, Peter Ross Roofing, and Peter Ross CA) handles waterproofing from below grades all the way to the roof.
This comprehensive approach eliminates coordination gaps, because when we install a roofing system, we know exactly how it needs to integrate with the rest of the envelope, because we are often the team installing those other systems as well.
A Track Record You Can Build On
The Peter Ross Group was built on the projects that define skylines.
Since 1963, we have partnered with the developers, architects, and builders who refuse to settle and are counted on to deliver commercial and high-rise projects that demand the best.
With locations in Vancouver, Calgary, Seattle, and California, we have the reach and resources to execute at scale across the continent. If your project demands a roofing partner who can keep up, let's talk.