What would be the most cost-effective way to build this detail?
After getting some helpful input from the GBA community, we have restarted the design process on our next house. We are going with a much narrower footprint that works better on our sloping lot and a mostly open main-floor plan. Now, we are thinking through some of the details and trying to determine if they are affordable or not.
For example, we would like to have a ceiling/roof detail with exposed dimensional lumber rafters and collar ties (image attached) in the cathedral ceiling. My non-expert opinion is that this look would be easier to accomplish by putting all the roof insulation on the exterior. But I imagine that installing 6-8 inches of reclaimed polyiso on a long hip roof is going to be expensive (essentially ZIP, rigid foam, ZIP, shingles).
Is there a more cost-effective approach to get high design without super-high cost? Should I just move on to Plan B (trusses, drywall, and exposed collar ties every 4 feet or so)?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part