Thread: TJI question

What is the purpose of the drywall along these TJI's.

Thanks

Hey mat was there any sound equiptment in and adjacent room ?

Thats the only theing i can think of...

Best

Ron

Was this attached housing? It looks like fire separation.... or an out of work drywaller with time to kill.

Perhaps they cover up somebody's mistakes with a hole saw.

Dude, that's that special structural drywall developers like to talk about. Fixes and holds up everything. The only thing missing is some Durabond to give it that hardened steel finish.
OK, I know ,,,

Looks like more drywall on the far side of the insulation.

Was this the garage side? If so, needs to have drywall up to the floor deck above, and, if that is living space above a garage it needs 5/8" Type X on the ceiling too.

If is it what Matt said "Was this attached housing? It looks like fire separation." then there are larger problems is that is a fire-rated wall assembly. The idea with the fire-rated wall assembly between adjacent structures is that one side can burn down (within the time period protected) and the other side remain standing, if those floor joists go all the way through from unit to unit - one unit falling in on itself will take the other unit with it.

Terribly misguided attempt at web stiffeners?

Originally Posted by Jim Robinson

Terribly misguided attempt at web stiffeners?

Jim,

I considered that too, but there is drywall behind the insulation ... leading me to think more toward "separation" or "fire-rating".

You could be right, and that would mean that worker knew nothing about construction.

There is an attached town home on the opposing side.

Just checking, but in the case of that being another townhouse on the other side of that wall, there is no way those joists would be allowed to go from one side through to the other is there?

It did not appear to be the case.

Based on another townhouse on the other side, I'm going with their idea of fire protection for the ends of the joists.

Originally Posted by mathew stouffer

There is an attached town home on the opposing side.

Originally Posted by Brian Robertson

Just checking, but in the case of that being another townhouse on the other side of that wall, there is no way those joists would be allowed to go from one side through to the other is there?

No, they would not be allowed to go through.

Originally Posted by mathew stouffer

It did not appear to be the case.

Matt,

I'm confused.

You are saying that those joists "do not" go through?

How deep is that bearing and how deep is that wall? Those look like they are bearing on the full width of the wall?

Utility chase? Ventilation? Fire blocking seems most likely as the drywall is doubled up.
Squash blocking? If the inside piece was not run between the 1x3 and instead set on top as the outside one is that would be my guess.
Acoustical vibration dampener?
Stop that squeaking noise its driving me crazy?

Matt, One of my recent projects was a recording studio. We used sheetrock in a similar way, in the webbing and on the underside of the flooring. This was to add more dimension for more sound isolation.

This is from the unfinished, insulated, conditioned, basement or semi-heated garage below living space & adjacent...yes?

Purpose is to draft block and thermal break the tails & hangers to the separation wall and complete a floor/ceiling assembly.

Hangers and squash wrapped in gyp, and fire/draft blocked, 2x5/8" indiv taped & mud to separation wall, then missing floor/ceiling finish details can be completed, looks to be set up to use resilliant channel 16" OC. 1/2" ceiling board, 5/8" X; an L518, L530, or L538 Assembly.