All you experts out there, help me out! I have seen a couple guys here using the spray foam insulation contractor, to do a “hybrid” approach to sealing and insulation eaves, so as to minimize or stop ice damming. We are in heavy winter country, and want to see R40 ceilings under our cold roofs. The attached drawing shows a section view of what I want to do. Please critique.
Replies
that'll work... but why go to the expense of the foam... you are dense-packing the rest of the attic... why not leave it at that ?
Mike Smith Rhode Island : Design / Build / Repair / Restore
This got started in my head when my supplier came back with the truss quote, and the truss maker automatically scratched my heel height, and replaced it with a big tall "energy" heel at 12". I want to retain my heel height so the 2x8 scab deco rafter tails bear on the plate edge, and so my cedar fascia board doesn't have to be any wider than it is already. The guys that supplement their cellulose insulation jobs with the urethane spray-in-place at the eaves say it means bye-bye to ice dams.