Sealing raw drywall edges

[J.B. Bobbitt]

I had a small shower fixture leak behind drywall. I've cut out the bad drywall and repaired the leak, and now I'm replacing the drywall patch (~8" X 12").

I've used a hole saw to cut the hole for the shower head fixture. The hole will only be covered with a small flange. I don't like the idea of the raw drywall edge being exposed to the moist environment.

Is there a preferred sealant or method for raw drywall edges?

Thanks a heap,

-jbb

[Joseph Meehan]

If it is drywall the surface is just as much of a problem as the edges.

[J.B. Bobbitt]

The surface will be painted w/ gloss enamel paint.

-jbb

[Joseph Meehan]

That is nice, but not what I would consider real protection. Regular drywall does not do will in damp conditions. They make a special product for those situations. Are you sure it is standard drywall?

[J.B. Bobbitt]

I appreciate the insight.

No, I'm not sure. The piece I cut out has no identifying or distinguishing markings, and it looks like regular drywall. This patch is above the pre-fab shower enclosure, but the brass threaded elbow for the shower fixture sits behind drywall about 8" above the lip of the enclosure.

The other thing I don;t like about this arrangement is that the bottom edge of the drywall sits on the lip of the pre-fab enclosure all along the top of the enclosure, and the caulk seal deteriorates and looks ragged.

I'm starting to think the builder didn't do this quite right.

-jbb

[Mike Dobony]

distinguishing

What else would you suggest doing, putting the lip on top of the drywall? Your arrangement is standard procedure and is usually done with green board, that is, water resistant drywall. That is what I did with a shower and a bath tub 15 years ago. Still no problems.

-- Mike D.

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[G Henslee]

The paper on the drywall would be green if it was water resistant.

That's how it is done.

[J.B. Bobbitt]

Thanks all.