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jrab3717 OP t1_j2ecayj wrote

Reply to comment by 2footitis in Had a plumbing issue upstairs, now i need to replace a ceiling drywall cutout used to access the plumbing from below. My progress is below, and im now nervous about the consequences of adding the joint compound without an actual joist or wood anchor behind it. Is this patch temporary or should i be by jrab3717

So i actually need to replace the entire sheet, so i can anchor the entire edge?

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Regular-Leave t1_j2ed48l wrote

Take out the drywall, cut some squares of plywood and fit one to each corner of the hole so it bridges between the new and old drywall. Screw it down to the old drywall, then fit the new piece and screw it in too

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jrab3717 OP t1_j2eddl9 wrote

The old drywall crumbled las time a drill touched it, which is why I am a little nervous affixing anything to it.

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Regular-Leave t1_j2eetdi wrote

I don't really see that you have a choice. The patch as-is doesn't have enough support, you either need to support it or replace more of the old drywall until you get back to studs

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portnux t1_j2eitw0 wrote

Dude needs to cut back to sold drywall, otherwise the repair will be crazy obvious.

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jrab3717 OP t1_j2efqta wrote

Thanks. I think you're right but was hoping this wasnt the case

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JonJackjon t1_j2ey8t2 wrote

Then use elmers glue to bond the wood strips to the old drywall.

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AltitudeTime t1_j2edakt wrote

I think what was meant was to pull the drywall patch and take a 2x4 cut to length on each side sistered to the framing that's already there. You then screw the drywall into that sistered wood to support the patch. Basically you are trying to make the new drywall piece as strong as the full sheet by screwing it to the wood.

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portnux t1_j2eimb0 wrote

Actually, I meant gluin and screwing 3” wide lengths of drywall on top of the existing drywall (patch removed first) on all four sides so he could attach the patch to them. I’d also suggest he cut away the paper around the patch a couple inches for the new paper to lay flush.

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AltitudeTime t1_j2ekpcl wrote

Your suggestion works, but it depends on if the cutout was flush with the framing because there wouldn't be room for the drywall overlap on to the existing drywall for at least part of the patch if it was because the wood would be in the way.

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Zeeinsoundfromwayout t1_j2ecl6v wrote

Start talking in details. What’s the size of the cut out. Where are your nearest joices in inches. This will Allow detailed accurate responses here.

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