An energy efficient insulation system for my area?
I am building a new home in Sacramento (No. Cal) and would like it to be as efficient as possible. I’ve noticed that the design for an insultation system (air/vapor barrier, R value, etc.) depends on your climate. While that seems like an obvious concept I believe that is what is causing some of the confusion for a lay person like myself, particularly in regards to the vapor barrier discussion. Is there a resource available that can recommend/describe a standard shell “system” ( dry to interior or exterior?, would a hybrid system work in my climate, and if so open or closed cell?, etc.) for my area? Any and all guidance would be much appreciated. So far, I know we are using advanced framing techniques, (we are not using SIPS), and there will be foam board on the exterior but beyond that no decisions have been made. What options do I have to fill the cavities? Should I dry to interior or exterior? (I would like to shoot for R-30 walls and an R-50 roof.) Thank you.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part