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TPO white thermoplastic roofing membrane installation on commercial flat roof, energy efficient reflective white surface
Commercial Roofing

TPO
Roofing Systems

Energy-efficient thermoplastic polyolefin roofing engineered for commercial, industrial, and flat roof applications. Reduce cooling costs while protecting your building with cutting-edge reflective technology.

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Understanding the System

What Is a TPO Roofing System?

TPO (Thermoplastic Polyolefin) is a single-ply roofing membrane made from a blend of polypropylene and ethylene-propylene rubber, reinforced with a polyester fabric scrim for strength. It's one of the fastest-growing commercial roofing materials in North America — and for good reason.

Engineered for Energy Efficiency

TPO membranes are manufactured in a highly reflective white or light-colored surface that reflects UV rays instead of absorbing them. This "cool roof" technology can reduce roof surface temperatures by up to 40% compared to dark-colored roofing materials, directly lowering your building's cooling costs.

The heat-welded seams create a permanent, watertight bond that's actually stronger than the membrane itself — making TPO one of the most leak-resistant commercial roofing systems available today.

Best Suited For:

  • Commercial office buildings seeking energy savings
  • Industrial facilities and distribution centers
  • Flat and low-slope roofs (¼:12 to 2:12 pitch)
  • Retail centers, schools, and healthcare facilities
  • New construction and complete roof replacements
  • Buildings pursuing LEED or energy certifications
How It's Built

Components of a TPO Roofing System

Every TPO roof we install is a complete assembly of premium components working together to protect your building.

TPO Membrane

The white reflective top layer — available in 45, 60, and 80 mil thicknesses. Polyester-reinforced for exceptional tear and puncture resistance.

Insulation Layer

Rigid polyisocyanurate (polyiso) or EPS boards provide R-values that meet or exceed Ontario Building Code requirements.

Fasteners & Plates

Heavy-duty screws and stress plates secure the membrane to the roof deck, engineered for Ontario wind uplift requirements.

Flashings & Accessories

Pre-formed TPO-coated metal flashings, pipe boots, and edge details provide a complete watertight system at every transition.

Heat-Welded Seams: The TPO Advantage

Unlike adhesives or tapes that can degrade, TPO seams are fused using hot-air welding at 600°C+. The result is a monolithic bond that's stronger than the membrane itself — virtually eliminating the risk of seam failure throughout the roof's lifespan.

Why Choose TPO

Benefits of TPO Roofing

TPO roofing isn't just a material choice — it's a strategic investment in your building's performance, operating costs, and sustainability profile.

Energy Cost Savings

The reflective white surface can reduce cooling costs by 15–30% during summer months. Many building owners see a full return on investment through energy savings alone.

UV & Heat Resistant

TPO reflects up to 87% of the sun's rays, reducing thermal shock on the roof assembly and extending the life of your entire roofing system.

Lightweight Design

TPO weighs less than most other commercial roofing materials, reducing structural load on your building — ideal for retrofit applications over existing roofs.

Environmentally Friendly

TPO is 100% recyclable at end of life, contains no chlorine or plasticizers, and contributes to LEED credits for sustainable building design.

Chemical & Mold Resistant

TPO naturally resists mold, algae, and chemical exposure — making it an excellent choice for restaurants, manufacturing facilities, and healthcare environments.

Cost-Effective Installation

Large-width sheets (up to 12 feet) mean fewer seams and faster installation. Lower labor costs without compromising quality.

How We Work

Our TPO Installation Process

At Divine Roofing & Renovations Inc., we install TPO roofing systems using manufacturer-specified methods and rigorous quality control — ensuring decades of leak-free performance.

1

Deck Inspection & Prep

We inspect the roof deck for structural integrity, remove old roofing if needed, and ensure the substrate is clean, dry, and properly sloped for drainage.

2

Insulation Board Installation

Polyiso insulation boards are mechanically fastened in a staggered pattern, eliminating thermal bridging and providing a smooth, even surface.

3

TPO Membrane Layout

Large-width TPO sheets are positioned and allowed to relax, then secured with fasteners and stress plates along the seams according to wind uplift calculations.

4

Hot-Air Seam Welding

Using robotic hot-air welders at precise temperature and speed, all seams are fused into a single, monolithic layer. Every weld is probe-tested for integrity.

5

Flashing & Detail Work

Pre-formed TPO flashings are installed at all curbs, penetrations, drains, and parapet walls. Edge metal and coping cap the perimeter for a finished look.

6

Final Inspection & Testing

Every seam is inspected, the roof is flood-tested if required, and a comprehensive quality report is delivered before we hand the roof back to you.

Where It's Used

Applications

TPO roofing is the fastest-growing commercial roofing material across North America — trusted across diverse building types and industries.

Distribution Centers

Large-format sheets mean faster coverage for big-box warehouses. Energy savings are maximized on expansive roof areas.

Office Complexes

Reflective white TPO reduces HVAC loads on multi-story office buildings, directly impacting the bottom line.

Healthcare Facilities

Mold and chemical resistance makes TPO ideal for hospitals, clinics, and long-term care facilities.

Manufacturing Plants

Withstands chemical exposure and internal process heat while maintaining a durable, watertight seal.

Trusted Partner

Why Choose Divine Roofing & Renovations Inc.

A TPO roofing system is only as good as the team that installs it. Here's why Ontario businesses trust us with their commercial roofing projects:

Factory-Certified TPO Installers

Our crews are certified by leading TPO manufacturers and trained in the latest hot-air welding techniques and quality control procedures.

Ontario Climate Expertise

We design every TPO installation for Ontario's specific wind, snow, and temperature conditions — not a generic specification from a warmer climate.

Comprehensive Warranty Coverage

Full manufacturer system warranties available up to 30 years, covering both materials and labor.

Preventive Maintenance Programs

Semi-annual inspections and maintenance keep your TPO roof performing at its peak, identifying minor issues before they become costly repairs.

Our Commercial Promise

On-time, on-budget project delivery
Minimal disruption to your daily operations
Transparent, itemized pricing — no surprises
Safety-compliant work sites (WSIB covered)
Detailed before-and-after documentation
Free annual inspection for the first 3 years

Up to 30%

Cooling Cost Reduction

Get Started Today

Request a Free Estimate for Your TPO Roofing System

Ready to reduce your energy costs with a modern, reflective TPO roof? Our commercial roofing specialists will assess your building and provide a detailed, no-obligation estimate.

Call (647) 575-7180 Contact Us Today