Wiring in cavities to be spray foamed

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Old 04-18-11, 06:47 AM
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Wiring in cavities to be spray foamed

I'm planning a basement renovation and was going to use batt insulation but now I'm debating using spray foam. What implications does this have for wiring? Do wires have to be derated? Would it make sense to use conduit in case I want to make any changes in the future? It seems like once the foam is in place all the wiring is permanent.

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Old 04-18-11, 08:13 AM
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You can run the romex in the cavities to be foamed, but only in groups of two. If you have more than two cables next to each other they need to be separated. You could install conduit if you wish, but it is not required.
 
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Old 04-18-11, 05:43 PM
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Thanks for the reply!
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Old 04-18-11, 05:55 PM
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Would running something like a lubed garden hose before spraying foam and then pull it out and run your lines be acceptable/economical? If the electricians approve of it, that may be an option. Just throwing it out there.
 
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