[Elderberry]

Could it have been that the initial fan fire ignited some cellulose insulation in the attic that smouldered and later caught fire?

[sinanju]

“Could it have been that the initial fan fire ignited some cellulose insulation in the attic that smouldered and later caught fire?”

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I guess we have to assume it was blowing directly into the attic as it said “ceiling” and not “wall”.