80-mil membrane. NDL-warranted.
Single-ply thermoplastic and modified-bitumen systems for multi-family, retail, and small commercial. Tapered insulation, welded seams, ES-1 edge metal — and a manufacturer-witnessed install that qualifies for a 30-year NDL warranty.
Four membranes. One spec for your building.
Spec'd by deck condition, traffic load, and rebate eligibility — not by what's on the truck.
GAF EverGuard® TPO
White, heat-welded thermoplastic. Best reflectance per dollar. Standard for retail and warehouse.
- Thickness
- 60 / 80 mil
- Warranty
- Up to 30-yr NDL
- 0.78 solar reflectance — ENERGY STAR® cool-roof rated
- Robotic hot-air welder, every seam probe-tested
- Mechanically attached, induction-welded, or fully adhered
- Eligible for most TX utility cool-roof rebates
Eight layers. Manufacturer-witnessed.
Tear-off & inspect
Remove existing membrane, inspect substrate and deck. Moisture-scan retained insulation. Document core samples.
Vapor barrier
Self-adhered vapor retarder over the deck when interior humidity load demands it (food, pool, healthcare).
Tapered insulation
Polyiso engineered to ⅛" per foot minimum positive slope. Crickets at every curb. R-30+ standard.
Cover board
½" HD polyiso or DensDeck Prime cover board for puncture resistance and warranty qualification.
Membrane attachment
Mechanically fastened, induction-welded, or fully adhered to assembly. Wind uplift designed to FM I-90+.
Hot-air welded seams
Robotic welder on the field, hand-welder at details. Every seam probe-tested by foreman before sign-off.
Flashings & details
Pre-formed corners, fabricated curbs, lead pipe boots, target patches. Edge metal to ANSI/SPRI ES-1.
Manufacturer inspection
Tech rep walks the roof and pull-tests fasteners before NDL warranty is registered.
Pick the membrane for the deck, not the brochure.
| TPO | PVC | EPDM | Mod-Bit | |
|---|---|---|---|---|
| Lifespan | 25–30 yr | 30+ yr | 30+ yr | 20 yr |
| Reflectance | 0.78 | 0.83 | 0.30 | 0.25 |
| Chemical resist. | Moderate | High | Moderate | Low |
| Foot traffic | Good | Excellent | Fair | Good |
| Cost / sq | $ | $$$ | $$ | $$ |
No Dollar Limit. No fine print.
- Up to 30-yr NDL manufacturer warranty
- Manufacturer field inspection pre-issue
- Probe-tested seams, pull-tested fasteners
- ANSI/SPRI ES-1 edge metal
- 5-yr Quality Roofing workmanship
- Optional PM program: $0.06–$0.09 / sq ft / yr
Flat roofing, plainly.
Pick the membrane and attachment.
Each membrane and attachment system is documented as its own option page — specs, use cases, FAQ, and warranty terms.
