Exterior Walls and NFPA 285


NFPA 285 Test Configuration image courtesy Carlisle Coatings & Waterproofing

Interior Spray Foam Insulation

Chapter 26 of the IBC 2006 building code requires foam insulations used inside the building weather barrier to be protected by a thermal barrier. The code defines thermal barriers as 1/2 inch thick gypsum wallboard or equivalent to limit the temperature..

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