Insulation plan for bonus room above garage
I am in MN(zone 6), working on my new construction.
It has an attached garage with a bonus room above it. I don’t plan on finishing it right away but would like to plan how I am going to insulate it.
I have sheathed the roof deck with 7/16″ zip sheathing. It will be covered with Cedar shakes. I have already roofed almost half of the house and am slowly making my way towards the garage.
I am considering both vented and unvented assemblies.
One of the possibilities is:
Cedar shakes with 30 lb felt paper interlayed
1 1/2″ above deck ventilation
5 1/2″ Cut and cobble EPS stuffed in between the top chords(top chord is 2×6) , sealed with spray foam.
6″ of eps covering the top chord.
I would appreciate your comments/opinions on it.
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