Read a great article on the Construction Instruction website discussing some of the same factors we do here on our IDEAL blog.  You can read the full article HERE.    There is also a nice visual representation of Attic insulation factors that you can view HERE.

Highlights include:

– proper vapor barrier seal between living spaces and Attic

– installing Air chutes, or styro-foam baffles, along the perimeter of the Attic space to ensure proper air flow intake from the soffit cavity

– insulating up to and over the external wall plates to ensure full coverage of the Attic floor

– the importance of an R-value of R50 in colder climates