All-in-One Protection

Spray Foam Magazine – Summer 2025 – In the ever-evolving landscape of building materials, No-Burn® Plus Spray Seal™ delivers a groundbreaking, all-in-one solution that streamlines building envelope performance. This water-based, low-VOC intumescent coating is specially designed for exterior sheathing materials like OSB and plywood, combining fire protection, air sealing, and weather resistance in a single application.

The result is a high-performance, code-compliant product that saves time and labor while enhancing building safety and durability.

Unlike traditional systems that require separate components for air barriers, water-resistive barriers, and fire-rated materials, No-Burn® Plus Spray Seal™ replaces multiple components such as fire retardant treated wood (FRTw), building wraps, fluid-applied membranes, and specialty sheathing systems.

Key Performance:

• 1.6 ACH 50 rating using fiberglass and a basic air-sealing package
• Equivalent fire-retardant treated wood rating
• Single coat application
• Minimal taping – only seams not backed by framing
• Rapid installs – i.e. 2 to 4 homes per day
• 6-month UV & Weather exposure
• NEW ZERO LOT LINE - 1HR RATED WALL ASSEMBLY

Dr. Joseph Lstiburek, a renowned building science expert, supports the product’s versatility and performance. “No-Burn® Plus Spray Seal™ replaces typical water-resistive barriers such as building wraps, building papers, and fluid-applied coatings with a single application coating that also provides fire resistance,” he explains. “This simplifies construction while improving overall building envelope performance.”

Whether you are working on single-family homes, multi-family units, or commercial projects, No-Burn® Plus Spray Seal™ offers a comprehensive, practical, and code-approved approach to modern construction challenges. With its streamlined application process and multiple benefits, it stands out as an essential solution for builders who demand efficiency without compromising safety or quality.