TPO (thermoplastic polyolefin) is the most popular single-ply roofing membrane for flat and low-slope roofs — and for good reason. This heat-welded membrane system delivers exceptional durability, energy efficiency, and waterproofing, making it the ideal choice for homes and businesses across Southern California. With our intense sun and warm climate, TPO roofing in Los Angeles keeps buildings cooler while standing up to years of UV exposure.
At Cal Green Roofing, we install premium TPO roofing systems engineered for Southern California’s unique climate. The bright white reflective surface bounces UV rays away from your roof, while heat-welded seams create a single, watertight sheet that’s stronger than any glued or taped alternative. Whether you’re protecting a commercial building or a residential flat roof, TPO delivers decades of dependable performance.
1. Energy-Efficient Cool Roof: TPO’s bright white reflective surface bounces UV rays and solar heat away from your building, cutting cooling costs and keeping interiors comfortable through Southern California’s hottest months.
2. Heat-Welded Seams: Unlike glued or taped seams that can fail over time, TPO seams are heat-welded into a single continuous membrane — stronger, more durable, and far more resistant to leaks.
3. 20–30 Year Lifespan: A professionally installed TPO roof lasts 20 to 30 years, delivering decades of dependable protection and one of the best returns on investment of any flat roofing system.
4. Puncture, Tear & Chemical Resistant: TPO stands up to foot traffic, dropped tools, and rooftop chemical exposure, making it ideal for busy commercial roofs across Los Angeles.
5. Low Maintenance: TPO systems require minimal upkeep. Occasional inspections and simple cleaning are usually all it takes to keep your roof performing like new.
At Cal Green Roofing, we install premium TPO membranes with professional heat-welding techniques, so every TPO roofing system we put down in Los Angeles, Ventura, Orange and San Bernardino counties is built to last.
TPO roofing is a smart fit for commercial buildings, apartment complexes, warehouses, and residential flat roofs throughout Southern California. If your property has a flat or low-slope roof, TPO’s combination of energy savings, durability, and affordability is hard to beat — which is why it’s become the most installed commercial roofing system in Los Angeles.
Our TPO Installation Process
Every Cal Green Roofing TPO project follows a proven, step-by-step process:
1. Free Inspection — We assess your roof’s condition, drainage, and structure, and confirm TPO is the right fit for your property.
2. Membrane Recommendation — We recommend the right TPO thickness and system — mechanically attached or fully adhered — for your building and budget.
3. Professional Installation — Our certified crew installs your TPO membrane with precision, securing every inch to manufacturer specifications.
4. Heat-Welded Seam Detailing — Every seam, penetration, and edge is heat-welded and hand-checked for a watertight finish.
5. Final Walkthrough & Warranty — We walk the finished roof with you and back our work with a solid workmanship warranty.
We proudly install TPO roofing systems across Los Angeles, Ventura, Orange and San Bernardino counties — from downtown commercial buildings to hillside homes with flat roofs.
Your roofing project shouldn’t come with stress or uncertainty. At Cal Green Roofing, we keep the process clear, respectful, and straightforward, so you can feel confident every step of the way.
We give you honest pricing upfront. No hidden fees, no surprises.
Every roof is built with care and quality materials designed to last.
From start to finish, we treat your home like it’s our own.
We can guide you in the right direction.
We take the time to answer your questions with honest, tailored guidance
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