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Prescriptive Vs. Intumescent Post New Topic | Post Reply
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Trey Gibson
Posted: Mar 24, 2009 02:52 PM
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Prescriptive Vs. Intumescent
When reading the ESR reports some mention both a prescriptive ignition barrier and an intumescent paint. What is the difference in these two things?Thanks in advance |
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mason
Posted: Mar 25, 2009 08:09 AM
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A precriptive igniton barrier would one that is specifically mentioned in the building codes such as 1.5 inches of mineral fiber, 3/8 inch drywall, 0.0016 inches of metal, 0.25 inches of wood. All intumescent coatings must be tested with the specific foam that it is to be used in a room corner test in order to obtain ICC ES approval (and an ICC evaluation report) |
