PolyCon PC 450 Open Cell Spray Foam Now Certified to Appendix U
No Ignition Barrier Required
Upgrade Your Insulation Offering
PolyCon’s PC 450 Open Cell Spray Foam (no-mix Required) has officially passed the rigorous Appendix U testing protocol, offering unmatched installation flexibility and cost savings without compromising safety or code compliance.
What Is Appendix U?
Appendix U, adopted by the International Code Council in 2023, provides a standardized path to code compliance for open cell spray foam used in unvented attics with a downward opening hatch. Systems that pass this test do not require an ignition barrier such as intumescent coatings.
Key Advantages of PC 450 with Appendix U Certification:
No Ignition Barrier Required
- Installs directly to the underside of roof decks and attic walls
- Eliminates the cost, labor, and time of applying coatings
Faster Installs & Lower Labor Costs
- One-crew, one-step install
- No need to schedule or wait for coating application
Simplified Code Compliance
- Recognized compliance pathway under IRC Section R316.5.3 – o Specific approvals and IRC Section R302.9.4 Alternative Test Method • Easier approval by building officials and inspectors
- Does not require a specific brand of attic hatch, just a downward opening hatch • Compliant with up to 14” on walls and ceilings
PolyCon Closed Cell Insulation (PC 2500 HFO & PC 2800 HFO)
- Product Design: Developed with an EPA-approved blowing agent for exceptional energy efficiency and waterproofing in roofing applications.
- Applications: Suitable for various roofing configurations, often eliminates tear-off, and provides a seamless blanket of insulation.
Improved Profit Margins
- Fewer materials and labor = higher contractor profitability
- Makes open cell foam more price competitive
Enhanced Marketability
- Boosts your value proposition to builders and homeowners
- Promotes fire safety, efficiency, and simplicity in one system
The Best Insulation Solution for…
- Unvented attics with a downward opening
- Retrofit insulation upgrades
- High-performance residential homes
- Code-sensitive jurisdictions
Certified & Trusted
PC 450 passed full-scale fire testing per ICC-ES AC377 Appendix U using: • Full-depth cavity fill
Test Report: RTL0972-7 – Dated April 30, 2025
Call Today!
Contact PolyCon Sales
Email: info@polyconspf.com
Phone: 1-855-PC1-FOAM