Nominal R-value on plans

Hello,On my draft plans they say “NOMINAL R-21 INSULATION AT WALLS”.  This is not correct and needs to be updated to reflect R-23 cavity with R-10 exterior, rigid, XPS.  Should… Hello,On my draft plans they say “NOMINAL R-21 INSULATION AT WALLS”.  This is not correct and needs to be updated to reflect R-23 cavity with R-10 exterior, rigid, XPS.  Should…Read MoreGreenBuildingAdvisor