Hey, if you’re building a new home using a floating truss system then you absolutely need to install Prest-on ceiling drywall clips to all your interior top wall plates, by attaching the ceiling drywall edges to the Prest-on clips instead of the trusses themselves will prevent what is known as in the drywall and building industry as truss uplift. 

Truss uplift  occurs at the ceiling and wall angle splitting the angle and drywall tape apart to the point it will need repaired. The repair cost for truss uplift damage can be very costly depending on how extensive the damage is; on average the cost to repair runs around $800 dollars; to install Prest-on clips before you hang the drywall in your new home will run you around $200.00