Hi, For our exterior home remodel, we have decided to use Zip R with insulation (R9) which is 2 inches thick and have heard that 3.5 or 4 inch nails will… Hi, For our exterior home remodel, we have decided to use Zip R with insulation (R9) which is 2 inches thick and have heard that 3.5 or 4 inch nails will…Read MoreGreenBuildingAdvisor

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