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Can I spray foam insulate from the outside?

Kurt Klischuk Published: June 6, 2019, 8:56 a.m.Last updated: July 24, 2019, 10:56 p.m.

I bought an old timer home on Gibsons, BC and the siding needs replacing. I want to use the opportunity to seal up and insulate the wall cavity once exposed. I expect to see insufficient or no insulation. After applying spray foam what is best to apply (tyvek vs. something other) before installing the new board and batton siding?

Thank you, Kurt

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