Air sealing attic in winter – possible to keep can warm? – GreenBuildingAdvisor

I live in Michigan and need to air seal my attic. Unfortunately it’s going to be 20-30 degrees for the foreseeable future, which means cans of foam will very quickly fall below their 65 degree minimum (for HandiFoam Extreme). Is there some way to keep the can warm, such as by wrapping it with insulation, to allow me to spray foam gaps in the attic this winter?

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