Flat Roofs That
Actually Hold Up
Flat roofs require a different level of attention than pitched roofs. Standing water, thermal expansion, and UV exposure are all bigger factors, and a flat roof installed without proper drainage planning or quality materials will fail faster and cause more damage than almost any other roofing failure.
We've installed flat roofs across the Inland Empire since 2022 and we know what works in this climate. We'll recommend the right membrane system for your property, budget, and usage, and install it to last.
Systems We Install
- Torch-Down Modified Bitumen, what we install on most flat roofs, usually finished with Polyglass Polyfresko, a white granulated cap sheet that reflects the sun and handles roofs with lots of penetrations
- TPO (Thermoplastic Polyolefin), energy-efficient white single-ply membrane, good in IE heat
- PVC, highly durable, chemical resistant, great for roofs with HVAC or kitchen exhaust exposure
- EPDM (Rubber), cost-effective, long-lasting, excellent UV resistance
- Reflective coatings over existing systems when applicable
What We Assess Before Every Install
- Drainage, existing drains, slope, and ponding areas
- Deck condition, wood rot, moisture damage, structural integrity
- Penetrations, HVAC units, vents, pipes, solar mounts
- Parapet walls and edge conditions
- Existing system condition if doing a recover vs. tear-off
Where We've Done This Work
Cities where we've done flat roof work, each with its own page:
Frequently Asked Questions
Quality TPO or PVC systems carry 15-25 year manufacturer warranties. Modified bitumen typically runs 15-20 years. Lifespan depends heavily on installation quality, drainage design, and maintenance.
Most residential flat roofs we do in the IE get torch-down modified bitumen, usually with a Polyfresko cap sheet on top. The layers are heat-welded together, it handles roofs with vents and AC stands well, and the white granule surface reflects the sun. We also install TPO, PVC and EPDM when a roof calls for one, and we will tell you why before you sign.
Standing water (ponding) that remains more than 48 hours after rain accelerates membrane degradation and is a sign of a drainage problem. It's worth having us take a look, it may be addressable without a full replacement.
Yes. We coordinate with solar installers regularly to ensure penetrations are properly flashed and waterproofed. If you're planning solar, let us know, we'll plan the roof work with that in mind.
What a Flat Roof Customer Said
In their own words, from Google and the other review sites. Each card opens the original. Read every review
