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Zip-R or Comfortboard Zone 6? – GreenBuildingAdvisor
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Are these two options equivalent solutions for 2×6 walls in Zone 6 (Minnesota)?
From the inside…
1. Drywall > Membrane > R-21 batts > Zip sheathing > 1.5″ Comfortboard 80 (R-6) > Rainscreen > Metal siding
2. Drywall > Membrane > R-21 batts > Zip R-6 sheathing > Rainscreen > Metal siding
Cost-wise, they are similar.
Labor-wise, option 2 wins.
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