Why will you want to repair plaster ceiling water damage?
To be blunt about it, leaking from your roof tends to discolor or darken your ceiling and make the affect part look crusty. If that happens, your home will lose its appeal, and you may lose your appeal to your friends too when they see that you cannot take care of such a small part of your home.
Aside from that, the idea of what can happen when the water reaches the light fixture on your ceiling is pretty scary. It can short circuit your electricity, burn the light fixture, or – knock on wood – burn the whole house down. If you do not want any of that to happen, repair plaster ceiling water damage.
How to repair plaster ceiling water damage?
First things first. Before you do any repair on your ceiling, be sure to cover or remove any furniture or carpet that may get ruined if ever water leaks down. Then, you may proceed with the actual steps on how to repair plaster ceiling water damage:
Find the reason for the water damage. You will be working here from top to bottom so you need to know first if the water is coming the hole-y roof or an old leaking pipe. Patch up or replace the roof and/or the pipe to make sure that either or both will not causing water to rain down on your ceiling again.
Dry the damage area. Mold will always grow on a wet wood – if not now, maybe later in time. Since our goal here is to perform an effective repair plaster ceiling water damage, you should keep the part of the ceiling that you are working on totally dry. It is highly advisable that you replace an overly saturated drywall or ceiling beam.
Clean the damage area. When you have gotten rid of the loose or flaky pieces of your ceiling, dust off or vacuum the spaces between the damaged and the undamaged portion of the ceiling. You may also need to sand such spaces to keep them relatively smooth and flat.
Add drywall. Cover the gap with a piece of drywall. Screw or nail it tightly to the ceiling beam. If the damage, however, is no bigger than six inches, you can already skip this step.
Apply first coat. Apply the first coating of joint compound. As an added step to repair plaster ceiling water damage, press a metal mesh tape to the still-wet plaster mixture. Let it stand for no less than 12 hours.
Apply two more coats. After that, you can proceed to applying to more coats of the compound, but make sure you let the coatings dry every time before you apply the next one. Sand the plaster when you are done and decorate it as you please.