Climate zone 5 wall assembly – GreenBuildingAdvisor

Hi all,

Just wanting to toss a proposed wall assembly out there and see if the experts would change anything. 

Remodeling a 1961 home in Syracuse, NY. Wall cavities are 2×4 on 16” centers. 

Proposed assembly from inside to out would be…

5/8” Sheetrock primed and painted

Rockwool R-15 between studs

1×6 tongue and groove sheathing

1.5-2.5” CC SPF (more is always better?)

3/4” rainscreen

LP Lap siding

Reading mixed things about vapor retarder requirements on the interior. I would like to omit if possible. 

thanks!

Matt