It is not necessary to trim the drywall sheets to align on the InSoFast studs. Because the panels provide solid backing for the drywall, you can float the butt seams between the studs. Where two drywall sheets meet, run a 3/8″ bead of PL Premium 3x along both sides of the seam to bond the drywall to the panels.
Drywall can also be installed vertically to eliminate butt seams. This requires the “floating” method above for the tapered edge seams.
Building codes require that all foam products in living areas be covered by a 15-minute thermal barrier, such as 1/2” drywall.
Fasten baseboard and trim to the attachment studs using a finish nail gun, hand nails, or trim head screws.
Use a scanning stud sensor to locate the attachment studs. Install the TV mounting bracket or cabinets by screwing directly into the attachment studs using fasteners for wood.
Most pictures under 10 pounds can be hung on the wall by using a nail or a screw inserted through the drywall into the foam. For pictures or shelving up to 40 pounds, you can use standard drywall anchors.