L&L Roofing explains how spray foam roofing costs compare to single ply, modified bitumen, and metal flat roofs for Gainesville property owners.

What’s the cost compared to other flat roofing options?

June 15, 20262 min read

What’s the Cost Compared to Other Flat Roofing Options?

Spray foam roofing (SPF) is competitively priced with other flat roofing systems—and often saves money in the long run through energy efficiency and reduced maintenance. At L&L Roofing & Construction, we help Gainesville property owners compare SPF costs with single ply, modified bitumen, and metal so you can make an informed decision.

Typical Cost Range (Per Square Foot Installed)

  • Spray Foam (SPF): $4 – $7

  • Single Ply (TPO/PVC/EPDM): $3.50 – $7

  • Modified Bitumen: $4 – $8

  • Flat Metal Roofing: $7 – $12

(Note: Costs vary by roof size, prep work, and materials. SPF is often cheaper on tear-off projects since it can be applied over existing roofs.)

Why SPF Can Save Money Long-Term

  • Energy Savings: SPF provides one of the highest R-values per inch, lowering utility bills.

  • Minimal Tear-Offs: Can be applied over existing roofs, reducing labor and disposal costs.

  • Low Maintenance: Recoating every 10–15 years keeps SPF performing without full replacement.

  • Leak Prevention: Seamless waterproofing reduces costly repairs.


FAQ: What’s the Cost of Spray Foam Roofing Compared to Other Flat Roofs?

Q: Is SPF the cheapest flat roof option?
A: Not always upfront, but long-term energy savings and reduced maintenance often make it the most cost-effective.

Q: Does SPF cost more than TPO or PVC?
A: It’s in the same range but offers higher insulation value, which reduces lifetime costs.

Q: How does SPF compare to metal?
A: SPF is significantly less expensive than flat metal roofing, especially for large buildings.

Q: Will roof size affect cost?
A: Yes. Larger roofs often see lower cost per square foot due to scale.


At L&L Roofing & Construction, we believe in honesty, integrity, and doing the right thing. That means giving you clear cost comparisons—not just selling you the most expensive option.

Call us today at (770) 874-0372 to request a cost estimate for spray foam roofing on your Gainesville property.


L & L Roofing and Construction

L & L Roofing and Construction

Lucas Heaps and Luke Goetz are the proud owners of L & L Roofing and Construction that serves the North Georgia and Greater Atlanta area.

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