Spray Foam United States
Sealed Roof Deck in Coastal Florida
WALLTITE® Closed-Cell SPF Insulation
High-Performance Spray Foam for Disaster Durable Homes
PrSealed Roof Deck in Coastal Florida
A Sealed Roof Deck provides more than just insulation—it’s a high-performance roofing upgrade that uses WALLTITE® closed-cell spray polyurethane foam (ccSPF) to fortify your home against nature’s most destructive forces. Installed directly under your roof deck, ccSPF offers powerful adhesive and air sealing benefits in a single application, creating a more durable, efficient, and protected living environment.
This coastal region new construction project had expansive roof areas with lanai overhangs, with the entire home using some form of reinforcements for high wind and rain events. As a retirement investment for homeowners, there was expectations of lifetime performance and safety in potential future storms.
Project Overview
Project Focus: Sealed roof deck using closed-cell spray polyurethane foam insulation
Featured Application: Residential roof deck / underside of roof sheathing
Primary Product Type: Closed-cell spray polyurethane foam insulation and air-barrier material
Key Benefits: Helps improve wind uplift resistance, reduce water penetration, and support comfort and energy efficiency
Installation Approach: Spray-applied to the underside of the roof deck by a qualified professional applicator
Resiliency Support: Creates a secondary water barrier and can support roof deck sealing requirements for FORTIFIED Home™ Bronze designation
Credentials: BASF closed-cell SPF is accepted and listed by Miami-Dade County for wind uplift and is GREENGUARD Gold certified for low chemical emissions.
What Makes Closed-Cell Spray Foam So Effective?
WALLTITE® closed-cell SPF is a professional-grade, two-component insulation system that expands and hardens upon installation to create a custom-fit barrier. It adheres tightly to the underside of the roof deck, filling gaps and cracks while delivering:
- Superior insulation – Maintains indoor temperature by limiting heat transfer
- Air and moisture sealing – Keeps out drafts, humidity, allergens, and pollutants
- Structural reinforcement – Adds rigidity to the roof deck, improving wind uplift resistance
- Flood resilience – Resists water intrusion for at least 72 hours
- Healthier indoor air – Certified GREENGUARD Gold for low chemical emissions
Stronger. Safer. Smarter.
Whether you're preparing for hurricane season or simply want a more energy-efficient home, a sealed roof deck using WALLTITE® delivers:
- Wind resistance: Strengthens roof-to-wall connections, helping resist uplift during high winds and hurricanes
- Water barrier: Seals out rainwater and prevents leaks, even during driving storms
- Energy efficiency: Reduces air leakage, lowers utility bills, and improves indoor comfort year-round
Our Sealed Roof Deck not only strengthens our home, but also gives us peace of mind and saves us money on our electric bill.
Recognized by Leading Resilience Programs
BASF closed-cell spray foam is listed by Miami-Dade County for wind uplift resistance and supports compliance with programs like FORTIFIED Home™ – Hurricane, an initiative from the Insurance Institute for Business and Home Safety (IBHS).
A Sealed Roof Deck using WALLTITE® ccSPF can help homeowners meet the Bronze-level designation under FORTIFIED Home™, protecting what matters most with added structural durability and moisture protection.