Drywall compound cracking

Discussion in 'Painting Forum' started by Smythers00, Nov 28, 2017.

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  1. Nov 28, 2017 #1

    Smythers00

    Smythers00

    Smythers00

    Junior Member

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    Hi,

    Recently we did a full gut and remodel of our bathroom. Everything went very well. However, the walls are cracking (the drywall compound) at the corners in the shower/tub area in the corners. We used fiberglass mesh tape for our joints and Green board for the bathroom walls.

    When we did the work 2 months ago, we noticed the drywall compound took quiet a while to cure - so we gave it some more time - like 1 or 2 days. Humidity in the house seemed fine when we did the work. We kept the bathroom fan on to keep the air flowing. The new bathroom fan was well rated for the size of the room, and we installed one of those switches that senses humidity and turns on automatically (works great). The house was air conditioned the entire time. We painted the undercoat and top coat, everything seemed to go fine.

    Just 2-3 months, and many showers later, we're getting these cracks.

    Any suggestions on how to fix them?
     
  2. Nov 28, 2017 #2

    bud16415

    bud16415

    bud16415

    Fixer Upper Staff Member Admin Moderator

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    Compound shrinks a lot if put on thick and takes a really long time to harden 100%.

    You should be able to look at the crack and tell if it was caused by shrinkage or because something moved etc.

    My guess is shrinkage and if that is the case fill in the crack sand and repaint.
     
  3. Nov 28, 2017 #3

    tuffy

    tuffy

    tuffy

    well-known member Supporting Member

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    I had the same issue just not in the bathroom we sanded it down put some spackle on it reprimed then repainted now 8 years later all is good.
     
  4. Nov 30, 2017 #4

    Smythers00

    Smythers00

    Smythers00

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    Cracks are definitely due to shrinkage.

    Thanks all for the help :)
     

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