Originally Posted By: Mobilus
Thanks, Loretta!

I finally got a bid on the closed cell spray insulation for the shop: $2500. I want to check with some other installers before ponying up.

For those of you with experience, should I install electrical components (outlets, light fixtures, etc) before or after the insulation?


Depends on how thick your going. I have seen guys put a bolt through the end of the chainsaw bar and use it as a depth guide to cut a grove to place the wire in when wiring the shop. Up here in Canada we put 3" closed cell spray insulation.

In my experience it is best to run the electrical first. If you have any water lines do not spray directly on them. They will freeze up here if you do that. Most people think spraying them with foam is the best thing to do but the foam will transfer cold even that it is insulation and they will freeze. Best to leave an air gap.

Cheers Don.

Last edited by DonoBBD; 01/14/14 01:18 PM.
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