Trusses loft

[gdlmwr]

Been lurking for a bit and searched for loft ideas. Here's mine looking for some advise.

28ft accross 6ft deep. 3 runs accross 24" on center.
2x6 sitting on top of wall. Want to tie to trusses. Should I tie from truss center of new board or splayed out ^ or like existing truss to center ¥ of new board?

 

[Nowater]

Unless your trusses are designed for a loft, it will take an engineer to design for safe loading based on what you want to put there, foundation footings, and a whole bunch of stuff. Sorry, it is not a do it yourself design option.