I am building an addition in Ottawa, Canada and plan to have 3” of exterior mineral wool insulation on my walls with 3/4” strapping at 16”, aligned with the studs… I am building an addition in Ottawa, Canada and plan to have 3” of exterior mineral wool insulation on my walls with 3/4” strapping at 16”, aligned with the studs…Read MoreGreenBuildingAdvisor

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