
Protecting exposed spray foam insulation is a required step for property safety, especially in residential and commercial buildings throughout Waupaca, WI. Proseal Spray Foam specializes in applying durable thermal barrier coating to meet critical fire safety standards and ensure the longevity of your insulation investment. We provide specialized application services that dramatically slow heat penetration into the underlying foam.
A thermal barrier coating is essential whenever spray polyurethane foam is left exposed within a building envelope, acting as a crucial line of defense against fire. This coating system is engineered to delay the rise in temperature of the underlying foam structure when exposed to heat or flames. Applying TBC effectively creates a separation layer, satisfying regulatory standards that demand a 15-minute thermal barrier across various environments.
We approach every TBC application with precision, ensuring uniform and complete coverage that adheres perfectly to the foam structure. This protective layer not only manages fire risk but also contributes to the overall stability and performance of the insulation system itself. Our systematic process ensures that your property achieves necessary compliance without compromising the energy-saving benefits provided by the foam insulation below.
Implementing fire-rated wall protection via thermal barrier coatings is fundamental to passive fire safety, providing occupants with precious time during an emergency. When exposed to high heat, the coating reacts by intumescing swelling up to create a thick, dense char layer that insulates the underlying foam from the heat source. This chemical reaction prevents the foam from igniting or contributing fuel to the fire, containing it within designated areas.
Beyond preventing ignition, these coatings help maintain the structural integrity of the partition or enclosure to which they are applied for a longer period. This enhanced protection is critical in commercial settings where compartmentation is required to limit the spread of fire and smoke. We ensure that all required areas receive a proper application thickness, meeting strict industry standards for fire resistance.
Key Benefits of Our Thermal Barrier Coating:
Thermal barrier coating must be applied wherever spray foam insulation is installed and remains exposed, ensuring comprehensive protection throughout the structure. Residential insulation Attics are common areas requiring TBC, especially when used for storage or housing mechanical equipment where ignition sources might be present. Applying TBC here is often mandatory to protect the roof structure and the home below.
Similarly, any exposed foam installed on interior Walls or rim joists must be covered to satisfy fire separation requirements, particularly in garages or utility rooms. We specialize in reaching these challenging locations, providing a seamless and continuous protective shell across all applicable surfaces. Our goal is to ensure that every necessary surface is properly addressed according to its specific application requirement.
Places This Service Can Be Applied To:

The effectiveness of our thermal barrier service stems directly from the quality of the materials we use, specifically Intumescent coatings. These advanced coatings are designed to be inert under normal conditions but reactive under extreme heat. Unlike standard paints, intumescents undergo a sophisticated chemical reaction when temperatures rise, forming a thick, insulating layer that provides immediate thermal protection to the underlying surface.
Using high-quality intumescent coatings effectively shields the foam, preventing rapid temperature increases that could lead to combustion. This superior material is formulated for high adhesion and durability, providing reliable, long-term fire protection without frequent reapplication. We carefully select products known for their proven performance in critical fire safety scenarios.
When comparing TBC to traditional methods like gypsum board (drywall), the advantages in certain applications become clear, particularly due to installation simplicity and coverage capability. Drywall requires complex cutting, fitting, taping, and mudding, which can be difficult in tight or irregular spaces like trusses and angled walls. TBC, being a spray application, conforms perfectly to every curve and corner, eliminating gaps.
Furthermore, TBC provides a uniform protective layer without adding significant weight or bulk to the structure, preserving valuable headroom and structural capacity. While drywall is suitable for finished areas, TBC is the preferred solution for maximizing fire safety compliance in areas where the spray foam is intended to remain exposed, offering a faster and more consistent result.
Feature | Thermal Barrier Coating (TBC) | 1/2" Gypsum Board (Drywall) |
Application Speed | Rapid spray application; cures quickly. | Requires cutting, fastening, taping, and finishing. |
Conformity to Surfaces | Seamlessly covers irregular shapes and tight areas. | Limited flexibility; requires complex framing for curves. |
Weight Added | Minimal weight added to the structure. | Adds significant weight, especially across large ceilings. |
Thermal Protection Mechanism | Intumescent char layer shields foam from heat. | Physical separation and chemical dehydration. |
Mechanical Rooms often house sensitive equipment, boilers, HVAC units, and water heaters, creating environments with heightened heat and fire risks. If spray foam insulation is used in these utility areas, applying a TBC is critical to prevent any potential heat source from compromising the insulation. Protecting these rooms ensures operational continuity and safeguards expensive machinery.
The proximity of electrical wiring and mechanical exhausts necessitates a highly reliable thermal protection strategy that only a specialized coating can offer. We ensure robust coverage around ductwork, pipes, and utility penetrations where exposed foam might be present. This focused application minimizes the risk of fire spread in areas vital to the building's function.
In Waupaca, WI, adequate insulation is paramount for managing extreme winter temperatures and high energy costs, meaning many properties rely on high-performing spray foam. Because Wisconsin building codes strictly mandate the protection of exposed foam, especially in accessible areas like unfinished basements and attics, TBC application is a necessity, not an option. Our crew ensures that local residential and commercial properties meet these strict safety requirements specific to the Waupaca region.
The use of thermal barrier coatings also contributes to the longevity of the entire building system, shielding valuable foam insulation from incidental damage and moisture intrusion when the coat creates a durable surface. By preventing foam degradation and ensuring fire safety compliance, ProSeal Spray Foam helps property owners in Waupaca and surrounding areas maintain peak energy efficiency and structural safety for years to come.
Ensure your property is protected and compliant with essential fire safety standards. Contact Proseal Spray Foam now to discuss your TBC project needs and get the application scheduled immediately. Call us at (715) 227-6295 to secure your essential thermal protection service.
The duration depends on the total square footage and accessibility of the area, but most residential projects are completed within one or two days.
Yes, regardless of whether the foam is open-cell or closed-cell, if it remains exposed in an accessible space, TBC is typically required by code.
No, the coating is designed only for fire safety and does not negatively affect the R-value or thermal performance of the underlying spray foam.
The intumescent material expands and creates a thick, protective char layer that effectively shields the spray foam from the high temperature of the flames.
We recommend that occupants and pets stay clear of the immediate work area due to required ventilation during the application and curing process.