Flat & Low-Slope Roofing (TPO)
Flat & Low-Slope Roofing (TPO) in Oklahoma City
Flat and low-slope roofs need a continuous membrane instead of shingles, because water drains slowly and can sit on the surface. TPO is a single-ply membrane whose seams are heat-welded together. Tusk Roofing installs TPO on porches, additions and commercial-style roof sections across the Oklahoma City metro.
Why shingles don't work on flat roofs
Shingles depend on gravity: each row overlaps the one below and water runs off. On a flat or very low slope, water moves slowly or pools, and it can back up under overlapping shingles. A membrane like TPO covers the area in wide sheets so there's no overlap for water to get under.
Seams
TPO sheets are joined by heat-welding the overlap, which fuses the membrane into one piece. Seams, edges and penetrations like vents and drains are where flat roofs typically fail, so that's where the detail work goes.
Drainage and ponding
"Flat" roofs still need a slight slope toward drains, scuppers or gutters. When water sits on a roof long after rain stops, that's ponding, and it stresses the membrane and the structure. We look at how your roof drains and address low spots as part of the job.
Know the signs
Signs a flat roof needs attention
- Water standing long after rain
- Blisters, bubbles or cracks in the surface
- Open or lifting seams
- Leaks near drains or vents
- Stains on the ceiling under a porch or addition
Materials
- TPO single-ply membrane
How it works
Our process
- 1
Inspect
We check the surface, seams, edges and how water drains.
- 2
Prep
We remove failed roofing and address low spots where needed.
- 3
Install TPO
Membrane goes down and seams are heat-welded.
- 4
Detail and clean up
Edges, drains and penetrations are flashed, then we clean up.
From homeowners
“beyond exceptional”
Very pleased with TUSK ROOFING. The customer service was beyond exceptional. They handled everything in the most professional manner. I highly recommend this company for any of your roofing needs. The quality of work done to our roof was great. Colton Miller was great to work with and he was more than helpful with the entire process. I will be using them in the future!!!!
Joshua Downey · via Website
“found our matching shingles”
We are currently doing a 600sqft addition to our 80 year old home. Tusk was able to reconstruct our roof to make it seamless to the new addition. They also went above and beyond and found our matching shingles that were discontinued so we did not have to redo the entire roof. We are very happy with how our roof turned out.
M. A. · via Nextdoor
Questions
Flat & Low-Slope Roofing (TPO) FAQ
What is TPO roofing?
TPO (thermoplastic polyolefin) is a single-ply roofing membrane used on flat and low-slope roofs. Its seams are heat-welded to form a continuous surface.
Can I put shingles on my porch roof?
Only if the slope is steep enough for shingles. Many porches and additions are too flat, and a membrane like TPO is the right choice.
What is ponding?
Ponding is water that sits on a flat roof after rain instead of draining. It stresses the membrane and the structure, and it usually points to low spots or blocked drainage.
Where do flat roofs usually leak?
At seams, edges and penetrations like vents, drains and where the flat section meets a wall or a sloped roof.
Related services
Metal Roofing
Standing-seam and exposed-fastener metal roofing for low- and high-slope roofs.
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Roof Repair
Targeted repairs for leaks, missing shingles, flashing, and additions tied into existing roofs.
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Gutters
Gutter systems installed to move water off the roof and away from the house.
Learn more