Sheathing Comparison - Zip vs Zip-R6 I’ve used both and each job is unique. I think the beauty of Zip-R6 is that you can meet the newer codes for exterior insulation in a one step installation. If you’re in a really cold climate you likely want to use standard Zip so you can go big on your exterior insulation. One wall of this house “The Risinger Build” we are using 2x6 walls with standard Zip then 3” of @atlaspolyisoinsulation Energy Shield for a continuous R19.7 (in cold climates you want a hi