TPO Flat Roofing for Additions, Porches, and Commercial Properties
Flat and low-slope roofs need a different system than a pitched shingle roof — we install TPO membrane systems built to handle Central Texas heat and heavy rain.
Where Flat Roofing Makes Sense
Flat and low-slope roofing shows up more often than people expect — additions, porches, garages, and outbuildings frequently use a flat or nearly-flat design, and it's the standard for most commercial and multi-family low-slope roofs. TPO membrane has become the go-to system for these applications:
- Reflective surface — TPO's typically white or light-gray membrane reflects solar heat, helping with cooling costs.
- Heat-welded seams — creates a genuinely watertight surface rather than relying on adhesive or fasteners alone.
- Cost-effective for low-slope — generally more budget-friendly than trying to adapt a pitched-roof material to a flat surface.
What Installation Involves
- Deck inspection to confirm it's structurally sound and properly sloped for drainage.
- Insulation board installed as the substrate beneath the membrane.
- TPO membrane installed and heat-welded at every seam.
- Flashing and drain details finished to prevent standing water and edge leaks.
Related Services
Roof Installation
New-construction and addition roofing, any system.
Learn more about Roof InstallationFlat Roofing Questions
What is TPO roofing?
TPO (thermoplastic polyolefin) is a single-ply membrane roofing system used on flat and low-slope roofs. It's heat-welded at the seams for a watertight surface, and its reflective white surface helps with cooling in Central Texas heat.
How long does a TPO roof last?
A properly installed TPO system typically lasts 20-30 years, similar to architectural asphalt shingles, though actual lifespan depends on membrane thickness and installation quality.
What's the difference between TPO and modified bitumen?
TPO is a newer single-ply membrane system, generally more reflective and often more budget-friendly to install. Modified bitumen is a multi-layer asphalt-based system that's been used longer and can be a better fit for certain roof conditions — we'll recommend the right one after inspecting your specific roof.
Do you install flat roofing on residential additions?
Yes — flat and low-slope roofing is common on porches, sunrooms, and additions where a pitched roof doesn't make sense, in addition to commercial applications.
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