Does a metal roof actually cool a Frisco home through a North Texas summer?
Disclaimer: this is general guidance from a North Texas roofing contractor. Every roof is different — actual scope, cost, and timeline depend on an on-site inspection. Insurance specifics depend on your policy and carrier.
The Frisco homeowners had been considering a metal roof for two years. They’d been told it would ‘cool the house significantly’ and save them money on summer A/C bills. We installed a standing-seam steel roof in early 2025 and they tracked attic temperatures for the full summer. This is what the data showed.
The pre-install baseline
The home was a 2010-build 3,400 sq ft Frisco property. Original 30-year architectural shingles, dark gray. The homeowners had been logging attic temperatures during 2024 summer:
- Average July attic peak temp: 148°F
- August peak: 152°F (recorded one afternoon)
- July electricity bill: $487 (about 60% of which was A/C load per their meter)
This is typical for a North Texas home with standard asphalt shingle roofing. The dark color absorbs solar load and the standard underlayment doesn’t reflect much of it.
What the metal roof changed
We installed standing-seam Galvalume steel in a lighter ‘silver pewter’ color. The system included:
- Reflective Galvalume metal (Energy Star rated)
- Synthetic underlayment
- 1-inch furring strip vented air gap between underlayment and metal
- Increased ridge venting (added two vents)
Result for 2025 summer:
- Average July attic peak temp: 119°F (29°F lower than baseline)
- August peak: 124°F (28°F lower)
- July electricity bill: $359 ($128 lower)
What the numbers actually mean
The 29°F attic temperature reduction was real and measurable. The electricity savings translated to approximately $1,200/year of reduced cooling cost in their specific home.
Over a 30-year metal roof lifespan that’s $36,000 of cumulative cooling savings — enough to recover the metal-vs-shingle cost premium over time, depending on initial install pricing.
Caveats: results vary by home. A poorly insulated home with bad attic ventilation won’t see the same delta. A south-facing roof will see more dramatic cooling improvement than a north-facing one. And a darker metal color reduces the reflective benefit significantly.
For homeowners considering a metal roof, see metal roof in McKinney, TX pricing and decision criteria in the full metal roof guide.
Where to go from here
For more on metal roof in McKinney, TX in our service area, the full pillar guide covers the broader category. Full service detail lives on the metal roof in McKinney, TX service page, and our broader services overview on the roofing services page.
