Edges of drywall don't line up with studs after applying QuietGlue

[Macropolo]

Hello everyone, this is my first post.

This is also my first time hanging drywall while trying to soundproof a room. I'm using QuietGlue to apply a second layer of drywall over existing walls. After covering the first wall, I realized that the edges of the drywall don't line up with the studs so I didn't screw the edges. I did mark, however, where the studs were and placed a screw every 12". Since I'm doing this by myself I'm hanging the drywall sheets vertically and so each sheet is screwed to at least 3 studs with 27 screws. (I'm leaving a 1/4 inch gap between floor and ceiling to apply sealant later on, by the way)

My question is this: since the QuietGlue also helps to hold the sheets in place, is it a big deal if the edges are not screwed? What would be the consequences if I leave it like this? Any advice?

[Boschen]

Welcome!

You may see some slight edge lifting after the mud-men are through, as those drywall edges are usually supported with screws to hold them down. Make sure the mud-men are thorough with the taping process.

However, as long as you did screw into the studs wherever they ended up, the sheets will be rigid and supported properly. If you're hitting 3 studs with 25+ screws on each sheet, you should be fine, at least according to my drywall buddies.

As an aside, did you use any isolation clips or staggered stud-walls, or just the double drywall sheets? Not critiquing your methods, just curious.

[amishsixstringe]

You should have your second layer of drywall mounted horizontally to maintain maximum sheer. Especially with free floating stand alone framing (room in a room). I usually install the first layer vertically, in order to stagger as many seams as possible. You should never put a seam on top of a seam unless it is on a stud, but even then it should be avoided when possible. I don't understand why the glue caused the sheets to drift, honestly. Also, if the edges aren't fastened to a stud, there is really only a mater of time before your seams crack--even with good taping/mud.

If you aren't hitting wood with all 4 edges of the board, you should use a rasp file to make them do so.

Neil

[Macropolo]

Boschen, thanks for your reply. Phew, I'm a little less worried now.

To answer your question, I'm not using any isolation clips or making any structural changes to the room. I'm just adding an extra layer of drywall to the existing walls. Not as easy as I thought but moving right along.

By the way, the mud-man is going to be me so wish me luck.

[Macropolo]

Originally Posted by amishsixstringe

You should have your second layer of drywall mounted horizontally to maintain maximum sheer. Especially with free floating stand alone framing (room in a room). I usually install the first layer vertically, in order to stagger as many seams as possible. You should never put a seam on top of a seam unless it is on a stud, but even then it should be avoided when possible. I don't understand why the glue caused the sheets to drift, honestly. Also, if the edges aren't fastened to a stud, there is really only a mater of time before your seams crack--even with good taping/mud.

If you aren't hitting wood with all 4 edges of the board, you should use a rasp file to make them do so.

Neil

Amishsixstringe, thanks for your reply. I'm just adding a second layer to an existing wall, which sheets were placed horizontally when it was originally built over 35 years ago. This is my first time doing this so I screwed up but realized it when it was too late.

So you're saying cracking seams will be a consequence... I'll have to live with this.