CRACKS
1.Assess the Plaster Cracks While covering damaged plaster with drywall is cheaper, materials that are period-authentic maintain the historic integrity of an old house. In addition, the plaster will be more durable. Begin by assessing the cracks and trying to determine possible causes. In this case, there are large cracks that have been repaired previously, as well as mid-size and tiny "spider cracks." Settlement over time is one cause of cracked plaster, but another is key disintegration. This is where the plaster protrudes through the wood lath to create a bond. It can also be caused by poor-quality plaster, water damage or normal wear and tear. 2.Clean Out the Cracks The first step in repairing cracks is cleaning them out. Use a five-way tool or other scraping device. In the case of larger cracks with plaster falling out, remove the damaged plaster to reveal the binding course. Knock old plaster through keys in the lath to establish ...
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