Water Damage On Plaster Walls

Patch plaster to repair the damaged sections.

Water damage on plaster walls.

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. Using a 3 16 inch masonry bit drill a hole in the plaster about 2 inches from the crack. The repair process on this page can be used to repair water damage to the surface layers of plaster walls and ceilings. Try to be as gentle as possible but if the damage is deep you ll need to get the blade in to dig out any soft material.

The second step in this guide on how to repair water damaged plaster walls is to remove the damaged plaster. After that long expensive process. Water damage on plaster wall. If you re not sure of the cause of a damp patch on a wall try the foil test.

The damage that water causes to plaster walls depends largely on the. Drill into the plaster photo by david carmack. Bubbling plaster bubbling plaster. As such water is a plaster wall s enemy.

Once the water damage becomes severe then the plaster will begin bubbling and bulging. To make plaster walls plaster is applied wet to a wooden lath wall structure and allowed to harden. How to repair plaster walls 1. 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.

Ready mixed compound will not be hard enough and is vulnerable to any residual moisture in the wall material. Plaster applied to a masonry wall is vulnerable to water damage if the wall is constantly wet. Next remove the damaged plaster. 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.

The source of the moisture must be eliminated before replastering the damaged area. Plaster that has gotten wet is best repaired using setting type joint compound also called mud. Take away all material that is bubbling flaking or peeling using a putty knife. Dry the wall surface with a fan heater then tape some kitchen foil tightly over the affected.

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. Use the steps in my post how to. 2 gypsum plaster gypsum plaster is not good at withstanding damp conditions.