Beat the Dallas Heat: Our White TPO Roof Stayed 75°F Cooler at 187°F

When Dallas hit 108°F this summer, we grabbed our infrared thermometer during a commercial roof replacement and discovered something that shocked even us.

The existing black EPDM roof? 187°F. Hot enough to fry an egg—literally.

The new white TPO roof we were installing? 112.5°F.

That's a 75-degree difference. On the same building. Same day. Same brutal Texas sun.

The Test That Changed How We Talk About Cool Roofs

We've been installing white TPO roofing systems in Dallas-Fort Worth for years, always telling business owners about energy savings. But seeing those numbers on the thermometer—187°F versus 112°F—made it real.

Your old black roof isn't just sitting there. It's a giant heat absorber working against your HVAC system every single day from May through September. At 187°F, that heat radiates straight down through your roof deck, into your ceiling space, and throughout your building.

Meanwhile, our white TPO roof reflects up to 87% of solar energy before it ever becomes heat. That's the difference between fighting the Texas sun and working with it.

What 75 Degrees Actually Means for Your Business

Lower roof temperature equals lower cooling costs. It's that simple.

Dallas commercial buildings that switch from dark roofs to white TPO systems see 20-30% reductions in summer cooling costs. For a 10,000 square foot building spending $2,000 monthly on air conditioning, that's $500 saved every month when you need it most.

Over a 20-year roof lifespan? We're talking $120,000 in energy savings—and that's using conservative estimates.

Cool Roof Technology That Works in Texas Heat

White TPO isn't just painted white. The membrane is formulated with highly reflective pigments engineered specifically to reject solar heat. According to the Cool Roof Rating Council, quality white TPO reflects 80-87% of sunlight—the highest rating of any commercial roofing material.

In Dallas-Fort Worth's intense UV exposure and nine months of heat, this cool roof technology isn't optional anymore. It's smart business.

The Numbers Don't Lie

• Black EPDM roof: 187°F (absorbs 70-90% of solar energy)

• White TPO roof: 112.5°F (reflects up to 87% of solar energy)

• Temperature reduction: 75°F (40% cooler surface)

• Energy savings: 20-30% reduction in cooling costs

• Ambient air temperature: 108°F (typical Dallas summer day)

From Heat Absorber to Heat Reflector

If your commercial building has a black or dark roof, you're paying to heat your building during the hottest months of the year. Every single day, your roof is working against your bottom line.

A white TPO roof flips that equation. Instead of absorbing Texas heat, it reflects it back into the atmosphere before it ever penetrates your building. Your HVAC system works less. Your electric bills drop. Your building stays more comfortable.

The 75-degree difference we measured isn't marketing hype—it's field-tested data from real Dallas commercial roofing projects, backed by decades of cool roof research from Lawrence Berkeley National Laboratory and the Department of Energy.

Ready to stop fighting the Dallas heat? Contact Arrington Roofing at (214) 698-8443 for a roof assessment and see how much a white TPO cool roof system can save your business.