Is this drywall, what's under it?
#1
03-01-18, 04:06 PM
Is this drywall, what's under it?
I have a spiral staircase leading up to a loft. There is cracking as pictured. I dug in and found what appears to be metal under what I assumed was drywall. I can't find any tape. Seems like there is a metal screw or bolt at one point. The last pic isn't clear but it's metal under the drywall. The metal doesn't hold the staircase. What is going on here? What would be the fix for the cracking?
Thanks!
Thanks!
#3
03-01-18, 04:19 PM
Member
Yep, corner bead. The cracking I have found many times is from lack of sufficient nails or nails poorly driven in. But movement is what is causing the cracking. Is there bounce in the floor in that area?
#4
03-01-18, 05:23 PM
I live 100' or so from an interstate, you can feel the house shake at times, maybe that's a factor.
#5
03-02-18, 02:32 AM
The fix would be to scrape off any loose mud, make sure the cornerbead is secure [add more nails if needed] and apply joint compound as needed. Sometimes it's beneficial to use drywall tape over the edge of the cornerbead.
#6
03-02-18, 05:28 AM
Group Moderator
I would rip off the bead... mainly because it's already been filled so taping it now would build it out beyond the metal corner. And I would use a paper tape metal corner in its place. You mud the corner, press the paper tape metal corner into place, the wipe it down tight. Once it's dry, you coat it 2 or 3x like normal.
The paper tape corners are less likely to crack like that, imo.
The paper tape corners are less likely to crack like that, imo.
#7
03-09-18, 01:05 PM
I decided to stick with the original bead. I chipped everything away and taped over the bead where it meets the drywall and then applied several coats of mud. I'm left with a bit of the bead showing in spots because the knife rubs up on it and the mud won't stick. Is this alright?
Thanks
Thanks
#9
03-09-18, 01:16 PM
Member
You use the corner bead as a guide and drag your knife with one of the sides of the knife riding on the bead, instead of trying to mud up to the edged of the bead. Hopefully you pounded the nails of the bead further in to tighten things up.
#11
03-09-18, 03:17 PM
I used the ultra lightweight premixed stuff from HD. I actually thinned it out with water as I find it goes on really thick and is hard to deal with otherwise, you end up with a lot of bubbles/pocks.
As far as something not looking right, maybe it was the angle of the photo, I'm looking up at the patch.
Here's a shot from further back.
As far as something not looking right, maybe it was the angle of the photo, I'm looking up at the patch.
Here's a shot from further back.
