drywall crack. how do i fix it?

[WhyMe]

had problems with this area as long as i have had my house. it lifts in the winter and cracks. not sure how to fix it. i know we got some savvy home diyers out there

 

[barryh]

I'm in a different country so detail construction methods will differ. My house is drylined with taper edged plaster board with a thin layer of finish plaster on top. Where I have movement at the join between two boards the only thing that works is to remove the finish plaster an inch or so either side of the join and then apply a stronger modern fibre glass jointing tape. I then use a specific jointing compound intended for the purpose over the tape to re-finish.

 

[PW01]

If it keeps coming back you have to find a way to stop the movement.

 

[JTK]

Hard for me to tell from the pic, but is that an outside corner?

 

[WhyMe]

Originally Posted by JTK

Hard for me to tell from the pic, but is that an outside corner?

yes. there is a truss connection at that corner and a great room there. its truss movement that opens and closes with the seasons.

 

[Donald]

fiberglass tape to reinforce then mud. you may want to scrape it down before applying the fiberglass tape.

 

[JTK]

Originally Posted by WhyMe

Originally Posted by JTK

Hard for me to tell from the pic, but is that an outside corner?

yes. there is a truss connection at that corner and a great room there. its truss movement that opens and closes with the seasons.

Gotcha. I'd put a piece of outside corner molding, or some type of molding over it and call it day. Like said, if you do a conventional tape and mud repair, it's just going to crack again with the movement.

 

[spasm3]

Originally Posted by JTK

Originally Posted by WhyMe

Originally Posted by JTK

Hard for me to tell from the pic, but is that an outside corner?

yes. there is a truss connection at that corner and a great room there. its truss movement that opens and closes with the seasons.

Gotcha. I'd put a piece of outside corner molding, or some type of molding over it and call it day. Like said, if you do a conventional tape and mud repair, it's just going to crack again with the movement.

+1

 

[maxdustington]

Everyone is wrong in this thread, that's a cornerbead: a thin metal angle that is nailed or screwed to outside corners to increase their durability. If you look at the part that has chipped off, the pattern stamped into it is unmistakable. Something could have whacked that and knocked the plaster off, but it doesn't look that distorted. It could have just popped the plaster off due to expansion or lack of adhesion. You do not apply tape to beads, they stand proud of the board and you feather the plaster out to the surface of the drywall. To fix it, you need to remove the loose plaster, reapply new plaster and then paint it. The hard part will be replicating that stucco? finish.

 

[WhyMe]

Originally Posted by maxdustington

Everyone is wrong in this thread, that's a cornerbead: a thin metal angle that is nailed or screwed to outside corners to increase their durability. If you look at the part that has chipped off, the pattern stamped into it is unmistakable. Something could have whacked that and knocked the plaster off, but it doesn't look that distorted. It could have just popped the plaster off due to expansion or lack of adhesion. You do not apply tape to beads, they stand proud of the board and you feather the plaster out to the surface of the drywall. To fix it, you need to remove the loose plaster, reapply new plaster and then paint it. The hard part will be replicating that stucco? finish.

Originally Posted by JTK

Originally Posted by WhyMe

Originally Posted by JTK

Hard for me to tell from the pic, but is that an outside corner?

yes. there is a truss connection at that corner and a great room there. its truss movement that opens and closes with the seasons.

Gotcha. I'd put a piece of outside corner molding, or some type of molding over it and call it day. Like said, if you do a conventional tape and mud repair, it's just going to crack again with the movement.

probably what i will have to do. any repairs in the past just don't last . as soon as the corner lifts it cracks

 

[ecotourist]

It sounds like you have movement of the underlying structure. And unless you can stop that, no plaster repair is going to last.

 

[P10crew]

Op that is a very good place for a Sheetrock expansion joint.