Can You Add Insulation Under a Single Ply Roof?

Yes—you can add insulation under a single ply roofing system, and it’s one of the best ways to improve energy efficiency and comfort. At L&L Roofing & Construction, we often install TPO, PVC, and EPDM membranes with customized insulation layers to meet code requirements and help property owners save on utility bills.

Types of Insulation Used

• Polyiso (Polyisocyanurate): Most common choice, offering high R-value per inch.

• EPS (Expanded Polystyrene): Cost-effective option with good thermal resistance.

• XPS (Extruded Polystyrene): Strong and moisture-resistant, ideal in areas prone to ponding.

Benefits of Adding Insulation

• Energy Savings: Lowers heating and cooling costs year-round.

• Code Compliance: Meets or exceeds Georgia energy code requirements for commercial and residential roofs.

• Improved Comfort: Helps maintain consistent indoor temperatures.

• Roof Performance: Provides a stable base for the single ply membrane.

FAQ: Can You Add Insulation Under a Single Ply Roof?

Q: How much insulation do I need?
A: It depends on building type and code requirements. We’ll calculate the right R-value for your project.

Q: Will insulation add weight to the roof?
A: Minimal compared to other systems. Most buildings can easily support single ply plus insulation.

Q: Can insulation help with ponding water?
A: Yes. Tapered insulation can be used to create slope, improving drainage on flat roofs.

Q: Does adding insulation increase installation time?
A: Slightly, but the energy savings and long-term performance make it well worth it.

At L&L Roofing & Construction, we believe in honesty, integrity, and doing the right thing. That means designing your single ply roof with the right insulation to protect your property and your budget long-term.

Call us today at (770) 874-0372 to schedule a consultation and learn more about insulated single ply roofing in Gainesville and surrounding areas.