![]() Small, hairline cracks are often normal and do not indicate any underlying issues. It’s important to note that not all cracks in plaster walls are cause for concern. Age: Over time, plaster can become more brittle and prone to cracking due to age and wear.(Young children fall into this category as well.) Impact damage: Physical force, such as from furniture being moved or objects being knocked into the wall, can cause cracks in plaster.Foundation movement: If the foundation of a building shifts or settles, it can cause the walls to crack.Temperature and humidity fluctuations: Extreme temperature changes or high humidity levels can cause the plaster to expand or contract, leading to cracks.This can cause cracks to form, especially in large areas or thick layers of plaster. Shrinkage: As lime plaster dries, it will shrink slightly.There are several factors that can cause cracks in lime plaster walls: Plaster walls are actually far superior to drywall in a lot of ways like sound dampening, insulation, strength, and even filter carbon dioxide from the air! That doesn’t mean they are inferior to drywall. Historic lime and gypsum plasters are naturally brittle so they require different care than modern drywall. You can fix plaster cracks of any kind, but it’s important to know if your repair is going to be merely cosmetic or you have some bigger issues to address. In this post I’ll help you diagnosis plaster cracks and know when it’s time to do some serious work or just learn to be at peace with things. So, how do you know which cracks are which and when you need to take action? Some of those cracks are a sign of trouble brewing while others are completely innocuous. ![]() Old houses get cracks in their plaster walls and ceilings there is just no denying it. ![]()
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