New white TPO single-ply membrane roof on a large warehouse in Phoenix, straight heat-welded seams in long rows, skylights and rooftop units, clear blue sky

Phoenix TPO Roofing

TPO & Single-Ply Roofing in Phoenix, AZ

White TPO membranes with heat-welded seams for warehouses and large flat roofs.

TPO Roofing for Phoenix Commercial Buildings

TPO is a white single-ply membrane rolled out in wide sheets and joined with hot-air welded seams. It is common on Phoenix warehouses, distribution centers and big-box retail because it covers large areas quickly and is reflective from the day it is installed.

A TPO roof is only as good as its seams and details. We probe-test welds, and we flash parapets, drains, curbs and penetrations with membrane welded into the field sheet.

TPO repairs use compatible membrane welded over a cleaned surface. Older TPO that has weathered may need extra cleaning and preparation for a new patch to weld properly.

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Hot-air robotic welder moving along a seam of white TPO membrane on a flat roof

Inside a TPO Roof

Handheld hot-air welder and silicone roller sealing a TPO membrane seam at a corner, gloved hands

Heat-welded seams

Hot-air welded laps that become one piece with the membrane.

Layers of polyiso insulation boards fastened to a metal roof deck before the TPO membrane goes down

Insulation

Rigid insulation boards fastened or adhered to the deck below the membrane.

TPO membrane flashed up a parapet wall and around a roof drain, clean welded details

Details

Membrane flashing at parapets, drains and curbs.

Long rows of new white TPO membrane on a warehouse roof with skylights, wide angle

Large roofs

Wide sheets that cover warehouse roofs with fewer seams.

TPO or Foam?

TPO single-plySpray foam with coating
SeamsHeat-welded lapsNo seams in the foam
Slope correctionTapered insulationFoam thickness shaped in place
UpkeepSeam and detail checksPeriodic recoating
Common fitWarehouses and large open roofsRoofs with many penetrations or low spots

TPO & Single-Ply Roofing Questions

How long does a TPO roof last in Phoenix?

Service life depends on membrane thickness, installation quality and upkeep. We document the membrane type and warranty on every TPO roof so you can plan ahead.

Can TPO be installed over our existing roof?

Sometimes. It depends on how many roofs are already on the building and whether the existing roof and insulation are dry. We check both before recommending a recover.

Can you repair a TPO roof someone else installed?

Yes. We weld compatible membrane over cleaned and prepared areas and reseal failed details.

Is TPO a cool roof?

White TPO is highly reflective when new, which helps meet the reflectance targets Phoenix uses for commercial flat roofs. Keeping it clean helps it stay that way.

Request a TPO Roofing Assessment

Tell us about the building, the roof size and any leaks. We will look at the roof and give you options.

Call 602-536-4117

Free estimate, no obligation

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TPO & Single-Ply Roofing Across Phoenix