How Are Single Ply Membranes Installed?

Single ply roofing systems—like TPO, PVC, and EPDM—are widely used on commercial and flat roofs because they’re durable, flexible, and cost-effective. At L&L Roofing & Construction, we install these membranes using proven methods that ensure watertight performance and long-term reliability.

Common Installation Methods

1. Mechanically Attached

• The membrane is rolled out and fastened with plates and screws.

• Seams are heat-welded (TPO/PVC) or adhered (EPDM) for a watertight finish.

• Lightweight and cost-effective for large buildings.

2. Fully Adhered

• The membrane is bonded directly to the insulation or roof deck with adhesives.

• Provides a smooth, clean look with excellent wind resistance.

• Ideal for properties where appearance matters or wind uplift is a concern.

3. Ballasted

• The membrane is laid loosely and held in place with river rock or pavers.

• Low labor cost but requires a strong structure to support the added weight.

• Less common today but still used for certain applications.

FAQ: How Are Single Ply Membranes Installed?

Q: Which installation method is best?
A: It depends on your building. Fully adhered systems offer great wind resistance, while mechanically attached systems are cost-efficient for large roofs.

Q: Do TPO and PVC require special tools?
A: Yes. Their seams are heat-welded using specialized equipment for a permanent, watertight bond.

Q: Can EPDM be heat-welded too?
A: No. EPDM is typically adhered with special tapes or adhesives.

Q: How long does installation take?
A: Most single ply roofing systems are installed in just a few days, depending on roof size and weather.

At L&L Roofing & Construction, we believe in doing the right thing—because it’s the right thing. That means installing single ply membranes with care, precision, and integrity so your building stays protected for decades.

Call us today at (770) 874-0372 to schedule a free consultation and learn which installation method is best for your Gainesville property.