I just recently purchased a bank foreclosed house that was under construction, the specs of the building are 32’ x 44’ the walls are 12’ tall 16” OC with a gambrel truss roof. My question is, 24’ of the length of the building has a second floor that 8’ 1 1/8 from the concrete floor. Rather than platform frame this area it is balloon framed and they attached a single ply 11 7/8” lvl with structural 6” screws 3 per stud then hung the I joists on this lvl. I’ve seen this done with the ledger notched into the stud but not hanging from screws. I know when attacking a deck this is how it’s done, but the ledger is usually attached to the band board. I’m a little concerned if I many encounter the studs wanting to buckle outward or inward once there is weight up on the second floor. It’s just going to be bedrooms and a bath, also the span is supported mid way and falls into the specs of the I joists manufacturer.
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Not knowing anything about the loading etc. and other supporting framing below, I can't comment about the ability of the screws to support the loading.
Also part of the answer could depend on the size of the studs? 2x4 ?, 2x6 ?
You might consider fastening a 1 1/2"x1 3/4" lumber ripping to each stud from the bottom of the LVL to the supporting structure below. This should eliminate any buckling you are worried about and allow for a little more insulation.
Just a thought. Always verify free information gotten on the web.
You should be fine if proper screws were installed and installed properly. I’ve had a few projects using the same method. The engineers signed off and designed the floor system. The main thing they were concerned about was using the specified screws and that screws were installed straight into the middle of the stud. A properly installed structural screw or lag screw will hold a tremendous amount of weight and requires off the charts amount of force to pull out. If you are concerned can have an engineer take a look at it.