This post is meant to understand different framing options, Im looking at ideas on how to frame overhangs on both the gable and eave. Both of you suggest the same thing, having two layers of strapping which extend beyond the frame which provide the overhang. I guess the distance one can extend is based on the spacing of the strapping and the roof loads. I like the detailed drawing frwinks sent, Im wondering now if one needed a soffit box to stiffen the eave overhang, if 2'6" were to be desired. I guess now it comes down to engineering. I do prefer the purlin roof for this design im working on, as the timbers can all be cut on my mill and I wouldn't need to scarf any joints. If, of course, the overhangs can be solid enough.
to answer your question:
-the 2'6" overhang is necessary
-and the walls would be a combination of fiberglass and foam, both on the outside of the frame
Thank you for your help
Ian
