How to Repair Ceiling Cracks Video

Instructions on How to Repair a Ceiling Crack by Actually Hiding it from View

By Mark J. Donovan

In this video, Mark Donovan of shows how to repair ceiling cracks by hiding them with mullion trim.

There are two basic methods for repairing ceiling cracks, either re-taping and mudding them or hiding them. Due to the fact that the particular crack in this video is located on the ridge of the cathedral ceiling I knew it would just reform if I simply re-taped and mudded it. Due to temperature changes the framing will expand and contract and cause the crack to reform if I simply re-tape and mud it.

So, in this video I am using a couple pieces of mullion trim to hide the crack. I used a scarf joint to join the two trim pieces together in the middle of the ceiling peak and square cut the far ends. I then pre-primed and painted the trim pieces to make my life easier.

I then used a nail gun to tack the trim into place, applied spackle over the nail holes, ran a bead of caulk along the edges of the trim to hide any gaps, and then finally touched up the trim with some paint. The ceiling crack is history and the ceiling looks 100% better.

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