TPO Flat Roofing for Additions, Porches, and Low-Slope Buildings
Flat and low-slope sections need a different roofing system than a pitched shingle roof. We install and repair TPO membrane and modified-bitumen systems built for genuine watertightness, not just a slapped-on patch.
What Is TPO Roofing, Exactly?
TPO (thermoplastic polyolefin) is a single-ply membrane installed in large sheets and heat-welded at the seams — a genuinely different construction method than shingles, built for surfaces with little to no pitch where water needs help draining rather than simply shedding downhill. Its typically white or light-colored finish reflects heat rather than absorbing it, which matters on a Texas roof.
- Heat-welded seams — a continuous, genuinely watertight surface rather than overlapping shingle layers.
- Reflective finish — reduces heat absorption compared to dark roofing materials.
- 20-30 year typical lifespan — with proper drainage and seam maintenance.
Installed pricing typically runs $4.00-$10.00 per square foot depending on membrane thickness and what condition the existing roof deck is in.
Where We Use It Most
- Home additions and porch roofs with little to no pitch.
- Detached outbuildings and garages.
- Commercial storefronts and mixed-use buildings around the Bishop Arts District.
Related Services
Flat Roofing Questions
What is TPO roofing?
TPO (thermoplastic polyolefin) is a single-ply membrane roofing system used on flat and low-slope roofs — additions, porches, and most commercial buildings. It's heat-welded at the seams for a genuinely watertight surface, and its white or light-colored finish reflects heat rather than absorbing it.
How much does a TPO or flat roof replacement cost?
Installed pricing typically runs $4.00-$10.00 per square foot for TPO, depending on membrane thickness and roof condition underneath. We'll give you an exact number after a free inspection.
How long does a TPO roof last?
A properly installed and maintained TPO system typically lasts 20-30 years, similar to architectural asphalt shingles but with different maintenance needs specific to a flat roof — mainly seam and drainage checks.
Is TPO better than modified bitumen for my flat roof?
Both are solid low-slope options. TPO tends to offer better heat reflectivity and a cleaner seam system; modified bitumen can be a good fit for certain budgets or existing roof conditions. We'll recommend the right one for your specific situation during inspection.
Have a Flat or Low-Slope Section That Needs Attention?
Free estimate, honest recommendations. We serve Dallas 75208, Oak Cliff, and West Dallas.