Mike G wrote:The gable on your bigger roof is effectively a truss using the wall plate as the bottom chord, the other truss on this roof (at the join to the smaller part of the building) has a meaty bottom chord (principle tie?) that as well as spanning the 'opening' into the smaller part of the building it also provides a 'base' for the more traditional 'king post' that supports the ridge on the smaller roof.
Correct
Woohoo! Look at me using roofing jargon and almost sounding like I have half a clue!
Mike G wrote:
*Turns out I was wrong, and I do have a continuous ridge beam, but it is only a structural ridge beam across the gap (where there are no ties), and thus doesn't need to be beefy.
Understood.
What I was trying to eventually get at, where I was going with this (admittedly I am responsible for meandering off) is that for my structural ridge beam (for a vaulted ceiling) can my gable design be similar to the gable under your big roof - obviously with timber sizes changed where necessary?