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.

Worker in protective gear applying spray foam insulation on a large sloped roof

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
View of spray foam insulation installed on flat roof
View of mountains from rooftop, in Mesa, AZ.

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.

Spray foam insulation installers, insulating building's flat roof.

A Product That Reflects Our Values

From formulation to field testing, 155-2.5 reflects SWD’s commitment to sustainability, performance, and solving real-world challenges. Built on decades of field insight and regulatory foresight, it’s a system you can trust—today and tomorrow.

Need Support or Have Questions?

Our technical team is just a call away. We’re with you from bid to build.

CALL: 888-380-2022