NFPA 13 provides allowed omissions for sprinklers in combustible concealed spaces where the entire cavity is filled "with non-combustible insulation".
Is fiberglass the only non-combustible insulation? Is blown-in insulation considered to be non-combustible, or does it depend on the type of blown-in?
Just curious if there was helpful literature so that we knew what to recommend or look for when we come across these scenarios. Thanks in advance.
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