Mineral Wool as a Fire Barrier
Zone 5 – New Construction.
I’m thinking of a flash and batt application for my roof line to save some money versus all closed cell. The contractors I talk to are saying that if I went with all closed cell the foam needs to be painted to meet Thermal Barrier code.
Does anyone know if using a MineralWool batt could serve a substitution for this paint? This way, I save on the paint and with the flash/batt assembly?
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