We are putting a new roof on our house (framing and all). The engineer sent me three prints with different truss spacing (16",19.2" and 24" OC). For obvious reasons, I would prefer to use the 24" centers (cheaper material cost, faster construction).
I am wondering what the downfalls are to using 24" centers. Do I have to use heavier sheathing if the trusses are spaced farther apart? The prints call for 1/2" sheathing on all three prints, but I will probably go with 3/4 just because.
FYI, I am in Ohio (stupid snow loads...) and we are using TJI trusses. Any advice is appreciated!