We're in the rebuilding process after a fire last year. Had originally planned on conventional stick framing until we caught wind of sip technology last Feb. after hours and hours of research and correspondence we're intent on rebuilding with sip walls and roof.
 Our original plan calls for a shed dormer on south side. Dormer sip wall (6 in panels) is 8' high and 16' wide and rests atop 1st floor 9' sip wall. Dormer roof (8 in panels) is 16' wide spans 16' from ridge beam to eave (4 4'x16' panels, 6x12 pitch; surrounding roof panels run 20' from ridge to eave with 10x12 pitch) Would like to stick to this design,but to do so with sips seems to present a problem or two. First would side (cheek) walls rest on adjacent roof panel sections (as with conventional framing) or rest alongside roof panel? If the latter is the case would cheek wall need to span to sub floor? Or could cheek wall rely on its triangular configuration for self support?  Second, if cheek walls were to rest on adjacent roof panel would dormer roof panel need to be notched or relieved where it meets adjacent roof panel at ridge. 
 I hope I'm providing an adequete description; I simply need to know how construction of a conventional shed dormer translates into a sip design. In all my research and downloading of design and construction literature I've yet to see an example. Hip dormers yes but not shed dormers.