![]() ![]() If you have any plaster issues not mentioned here, leave a comment below and I’ll try to answer as many as I can about how to resolve the issue. Shrinkage Cracks: In the case of freshly applied plaster on the wall, the water will evaporates from plaster and it develops the shrinkage cracks due to its initial shrinkage i.e. It will start showing you leaks and settling before anything else, so look for the signs and fix the issues before they demand your attention in a more expensive way. Remember, plaster is the canary in the coal mine and these are just some of the most common plaster problems. Use the steps in my post How To: Repair Plaster Walls to get things stabilized again. If you see bulges in your wall or ceiling and the plaster can be pushed back up against the wall, then it’s time to reattach that section of plaster. Just like delaminating cracks, bulging plaster looks exactly the same, except this time there aren’t cracks in the surface. I have seen a plaster wall come completely loose of the lath and bulge out about 4 inches from the wall without falling or even cracking! It’s not just cracks that mean plaster has come loose of its lath. Water and plaster are not a good combination, so find the source of the leak first and do everything you can to stop the water. If not repaired soon, the damage will just continue and you run the risk of developing mold in the affected area. Use the steps in my post How To: Patch Plaster to repair the damaged sections. Plaster is also prone to thinner spider-web cracks. ![]() Over time the plaster separates from the lath, creating structural cracks. You may reach this stage without any noticeable water stains, but when this happens, a portion of the plaster will have to be removed and patched. A: Old lath and plaster walls are prone to cracking. Once the water damage becomes severe, then the plaster will begin bubbling and bulging. ![]()
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