No-Burn Plus® - Successfully Tested as an Alternative to Gypsum Wallboard to Meet Thermal Barrier Requirements over Structural Insulated Panel (SIP) Assemblies

No-Burn® Plus Specialty Coating Technology and innovative Structural Insulated Panel (SIP) designs, further enhance value engineering offered to architects, engineers, building contractors and building owners.
No-Burn® Plus is an Intumescent Protective Coating that meets code requirements as a fire protective coating that is spray applied over OSB. No-Burn Plus is applied in the field or at the manufacturing plant by a No-Burn Certified Technicians.
No-Burn® Plus is a water-based system that cures within 24 hours. This coating provides a long-term protective shield whose only purpose is to prevent the direct impact of a flame source on the wood surface.

The picture above is of a UL 1715 full-scale room fire test combining PorterSIPs™ panels with No-Burn® Plus intumescent coating to demonstrate that this system could provide the code-prescribed 15-minute thermal barrier rating without the need for typical membrane protection, commonly provided by gypsum wallboard.
Thermal barriers are required as a method of separating foam plastic insulation from the interior of a building according to the International Building Code (IBC) section 2603.4. In practical terms, this means that materials such as the rigid insulation used in SIPs require a form of fire protection to be provided that allows the panel to “withstand” a minimum of 15-minutes in a fire situation so that inhabitants can exit the structure and the fire service can gain control of the fire.

