Commercial Roofing Project

Commercial TPO Membrane Recover in Grand Junction, CO

By CRC Project Management Team, Commercial Roofing Contractor · July 7, 2026

  • Commercial Roofing
  • TPO Membrane Recover
  • Johns Manville
  • Grand Junction
Aerial view of a completed white TPO membrane recover roof on a multi-tenant commercial building in Grand Junction, Colorado
Project Capsule: On a busy multi-tenant commercial property in Grand Junction, Colorado, CRC replaced an aging, leak-prone metal roof with a fully-adhered Johns Manville TPO membrane recover system, first locating hidden leak points with drone thermal imaging, then coordinating a multi-day rebuild that kept every tenant operating without interruption.

Project Facts

LocationGrand Junction, Colorado
CRC officeGrand Junction Office
Building typeMulti-tenant commercial property
MethodFull membrane recover over the existing metal roof, no tear-off
Roof system installedJohns Manville 60-mil white TPO membrane, fully adhered over rigid polyiso insulation and a coverboard
Leak detectionDrone thermal imaging scan of the roof performed before the recover
ManufacturerJohns Manville, installed by a JM Peak Advantage certified contractor

The Challenge

The building is a busy multi-tenant commercial property in Grand Junction with an aging, ribbed metal roof. Years of high-altitude UV, snow, and temperature swings had left the panels and their seams and fasteners vulnerable, and the property needed a fix that would not force tenants out or interrupt their operations during construction. Before any work began, CRC ran a drone thermal imaging scan of the roof to find exactly where heat and moisture were escaping through the metal, rather than guessing at problem areas from the ground. The scan pinpointed leak points at seams, fasteners, and penetrations across the field, giving the project team a precise map of what the new roof system needed to solve.

The Solution

Instead of tearing the metal roof off, CRC recovered it with a new low-slope membrane system built directly over the existing panels. FluteFill filled the metal ribs to create a flat plane, rigid polyiso insulation went down over that, a coverboard was mechanically fastened on top, and a Johns Manville 60-mil white TPO membrane was fully adhered across the entire roof.

The roof system was only half the job. Keeping the property fully operational during a major commercial reroof took hours of hands-on coordination from the CRC project manager, including scheduling two large material deliveries in the same window, mapping site logistics so trucks and equipment never blocked tenant access, and sequencing the crew around a tenant whose operations had to keep running throughout the project. One tenant space was covered floor to ceiling in protective sheeting to keep it fully shielded and usable while the roof overhead was rebuilt. Across the job, a single point of contact managed the property owner, the on-site team, the installation crew, material deliveries, and scheduling in real time.

The Result

The building went from an aging, leak-prone metal roof to a seamless white TPO membrane system engineered for the Grand Valley's sun, snow, and temperature swings. The reflective white surface lowers cooling load, the fully-adhered membrane seals the leak points the thermal scan identified, and the recover approach delivered a new roof without the disruption of a full tear-off. The project also shows the level of coordination CRC brings to a complex commercial job: a fully operational, multi-tenant property throughout construction, with every tenant able to keep running their business.

Before and After: The Membrane Recover

Aged ribbed metal roof on a Grand Junction commercial building with leak areas marked before a membrane recover
Before: the existing ribbed metal roof, with leak-prone areas marked ahead of the recover.
Close-up of an aging ribbed metal commercial roof in Grand Junction, Colorado showing weathered seams before replacement
Before: weathered seams and fasteners on the original metal panels.
Drone thermal imaging scan of a commercial metal roof in Grand Junction showing hidden leak points before the recover
Thermal imaging: a drone FLIR scan pinpointed hidden leak points before any work began.
Rigid polyiso insulation boards being installed over an existing metal roof during a commercial TPO membrane recover in Grand Junction
During: rigid polyiso insulation installed over the existing metal roof.
Johns Manville TPO membrane being adhered over a coverboard during a commercial roof recover in Grand Junction, Colorado
During: the Johns Manville TPO membrane being fully adhered over the coverboard.
Dusk view of a commercial roof recover in Grand Junction showing the metal roof, insulation, and new TPO membrane in one frame
During: metal roof, insulation, and new membrane visible together as the recover progressed.
Protective sheeting covering a tenant space during a commercial roof recover project in Grand Junction, Colorado
Tenant protection: a tenant space fully shielded so operations could continue during construction.
Finished seamless white TPO membrane roof with new pipe boot flashings on a commercial building in Grand Junction
After: the finished seamless white TPO membrane, with new pipe boot flashings.

Why CRC for a Commercial Membrane Recover

Commercial Roofing Contractor is a JM Peak Advantage certified installer of Johns Manville TPO systems and leads every commercial project with a proper inspection, including thermal and moisture detection where it applies. Our Grand Junction office serves the Western Slope, and our commercial team installs and warranties TPO, EPDM, and modified bitumen roofing systems across Colorado.

Get a Roof Recover Assessment

If your commercial building has an aging metal roof, a recover can be a faster, less disruptive path to a sealed, reflective roof than a full tear-off. Call our Grand Junction office at (970) 877-7663 or our Denver office at (720) 893-7663, or click to request a free roof inspection.

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