Closed-Cell Roofing Foam with a Lighter Density, Same Heavy-Duty Performance
Low GWP, High Uplift Strength, and Seamless Protection
QUIK-SHIELD® 155-2.5 is a 2.5 lb. closed-cell polyurethane spray foam that provides high-strength, self-flashing protection with impressive thermal performance and environmental compliance. Designed for contractors working in climate-sensitive markets, this system delivers serious uplift resistance, insulation value, and low air leakage—without relying on fasteners or seams. It meets California and Washington Low GWP mandates and contributes to LEED credits.
Why Quik-Shield® 155-2.5:
- Low GWP, Eco-Conscious Design
HFC-free blowing agent meets today’s environmental regulations without sacrificing performance. - Strong Adhesion & Wind Uplift Resistance
Class-leading 165 psf on metal decks and 160 psf on wood and concrete. - Formulated for Versatility
Available in Winter, Intermediate, and Summer blends to match jobsite conditions and minimize delays.
Key Specs at a Glance:
Property | Value |
---|---|
Base | Closed-Cell Polyurethane |
Solids by Weight | 2.5 lb/ft³ |
Solids by Volume | 50 psi |
Viscosity | A: 250 ± 50 cP / B: 800 ± 50 cP |
Weight per Gallon | A: 1.23 / B: 1.17 (specific gravity) |
Color | Yellow (not color-stable) |
Packaging | 275-gal tote, 55-gal drum |

Application Conditions:
Use the seasonal blend appropriate for ambient conditions:
- Winter: 45–65°F
- Intermediate: 65–85°F
- Summer: 80–115°F
Apply in ½″ to 1½″ passes, reaching full thickness on the same day. Surface must be clean and dry before spraying. Use high-pressure plural-component equipment (≥1000 psi dynamic pressure). Precondition materials to 70–80°F prior to application.
Where It Works:
- SPF roofing systems (new construction or retrofit)
- Compatible with concrete, metal, and wood decks
- LEED-driven or Low GWP regulated projects
- Areas requiring Class A/B fire-rated assemblies (UL 790)
- High-wind or weather-critical zones
QUIK-SHIELD® 155-2.5 is the lightweight option that still delivers heavyweight performance. With strong adhesion, consistent application, and environmental compliance, it’s built for contractors who don’t cut corners—on code or quality.
Need Support or Have Questions?
Our technical team is just a call away. We’re with you from bid to build.