Insulating Zone 6, 2×6 rafters roof during reroof
Hi, I want to improve the insulation on my house. It is a 1950 minimal traditional style with one and a half story located in the bc interior (zone 6).
It is framed with 2×4 walls and 2×6 rafters with very little head space. I can probably get away with using 3in max of space below the rafters.
Since I plan on changing the metal roof within the next year, what would be a good cost effective approach to this challenge without using spray foam?
I know there is a probably several good options that could do the job but most of the different assembly I have researched does not take into consideration that the roof also needs to be replaced.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part