His pitch is 12/12 a plus and we dont know where he lives or what the snow loads or wind loads he has a short span across the building so thats also a plus also. Here is an article on the subject and a calculator. He will have to let us know how much snow load he gets and then plug in some numbers to get an idea.It looks like he is already over the limit, pushing a few more inches might just be to far.
Every time I look at it I have more questions.While I'm aware of the "intended function" of both, rafter ties are seldom, if ever, tied to the ridge, as these are.
What draws my attention, is that the ties are newer than the rafter ties.
Was there spreading caused by the "rafter ties" being incorrectly placed?
Get stuck with a couple bad quotes and you learn to look for detail.You guys can read a lot into a picture. I was noticing how the field stones were lined up funny in the basement.
Really 76 isnt a bad height for an attic. Thats a lot of work to pick up more head room. When the OP comes back and tells us how much weight he is planning to add up there the ties will be the least of the problems.