How to frame for a drywall ceiling with 8 feet between trusses?
I would verify your trusses have the capacity to add the additional weight of the strong ties and 2x4s on 16”. That is how I have done it on several buildings but I had the weight added in because I wanted clear span below. Your trusses look a bit lighter than mine were, but I can’t see much of them. But our span was similar.