Severe Weather Performance

Severe Weather Performance

Each year, thousands of buildings are damaged due to flooding, hail and high winds. Closed-cell spray polyurethane foam (ccSPF) with Honeywell blowing agents has proven effective during severe weather. When ccSPF is sprayed, it expands into foam adhering to the spray surface and filling in cracks and crevices that cause air and water infiltration

Closed-Cell SPF with Honeywell blowing agents provides homes and buildings prone to severe weather with:

Excellent wind uplift resistance

  • Provides smooth, continuous surface that grips building deck and walls
  • Seamless – no joints or edges to “uplift”

High structural (racking) strength

  • Fully adheres to both exterior sheathing and studs inside stud walls – reinforcing both
  • ccSPF- filled walls can add 75% to 200% racking strength1

Outstanding water resistance

  • U.S. Federal Emergency Management Agency (FEMA) considers ccSPF to be a flood-damage resistant construction material2

Strong hail resistance

  • ccSPF roofing performs above average compared to other roofing systems in withstanding hail-related damage3

When considering ccSPF insulation to help protect against severe weather, Contact us to learn about the latest in blowing agent technologies.


1. NAHB Research Center for The Society of the Plastics Industry/Polyurethane Foam Contractors Division: Testing and Adoption of Spray Polyurethane Foam for Wood Frame Building Construction (May, 1992). www.sprayfoam.com/spps/ahpg.cfm?spgid=74.
2. FEMA Technical Bulletin 2-08 (replaces 2-93): Flood Damage-Resistant Materials Requirements (August, 2008). www.FEMA.gov.
3. Rene Dupuis, Structural Research, Inc. for the National Roofing Foundation (NRF): Field and Laboratory Assessments of SPF Roof Systems.
Presented at the Fourth International Symposium on Roofing Technology (September, 1999). www.nrca.net/rp/technical/techconf/fourth.aspx.