Water Damage On Plaster Walls

Using a 3 16 inch masonry bit drill a hole in the plaster about 2 inches from the crack.

Water damage on plaster walls.

Plaster that has gotten wet is best repaired using setting type joint compound also called mud. Next remove the damaged plaster. Bubbling plaster bubbling plaster. How to repair plaster walls 1.

To make plaster walls plaster is applied wet to a wooden lath wall structure and allowed to harden. The source of the moisture must be eliminated before replastering the damaged area. 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. After that long expensive process.

The damage that water causes to plaster walls depends largely on the. Outside damage caused by bad guttering or roofing will inevitably end up with water cascading down the same part of a wall causing long term damage. Once the water damage becomes severe then the plaster will begin bubbling and bulging. After some investigation we learned we needed a new roof on the building and brick pointing overall.

Ready mixed compound will not be hard enough and is vulnerable to any residual moisture in the wall material. When you hit lath stop the bit won t go through wood pull out the bit and drill another hole about 3 inches from the first and about 2 inches from the crack. As such water is a plaster wall s enemy. Plaster walls are uncommon in newly built homes but if you live in an old house some of your walls may be made of lath and plaster.

About a year after we moved into our apt on the top floor of a five story co op we started noticing water damage on one wall of our bedroom. Plaster applied to a masonry wall is vulnerable to water damage if the wall is constantly wet. Dry the wall surface with a fan heater then tape some kitchen foil tightly over the affected. Use the steps in my post how to.

If you re not sure of the cause of a damp patch on a wall try the foil test. Water damage on plaster wall. Patch plaster to repair the damaged sections. When salts from the masonry substrate come in contact with water they migrate to the surface of the plaster appearing as dry bubbles or efflorescence.

The repair process on this page can be used to repair water damage to the surface layers of plaster walls and ceilings. 2 gypsum plaster gypsum plaster is not good at withstanding damp conditions. The second step in this guide on how to repair water damaged plaster walls is to remove the damaged plaster.