Cracks on plaster walls12/15/2023 ![]() ![]() Allow moisture to come in contact with the plaster wall regularly and it will seep through the plaster, causing it to expand and form hairline cracks. Moisture becomes prevalent in the atmosphere when seasons change frequently. One drawback of using plaster is that it’s vulnerable to moisture. Whatever the reason for the poor installation, a crack on your plaster wall is something you cannot afford to ignore. Another possible scenario is when he overlays the plaster without applying chicken wire mesh in the masonry first. For instance, a construction professional might forget to rake the background surface before applying plaster on it. So many things can go wrong when constructing a plaster wall. Sadly, some contractors will not follow building codes just because they can get away with it, while some are simply not competent or diligent enough to do the job properly. Small hairline cracks are not usually a cause for concern, but they must be addressed as soon as possible before they get worse.Ĭracks in plaster walls can be caused by a wide range of things, and they are: ![]() To put it simply, a hairline crack is a line that appears along the surface of a wall (not just plaster walls), indicating a split that appears as if the wall is breaking apart. To be sure we’re on the same page, let’s define what a “hairline crack” is. Before we delve into how to repair hairline cracks in plaster walls, let’s go over why cracks happen in plaster walls in the first place. While durable, even plaster wall can incur damage through wear and tear and poor maintenance. After the brown coat, the finish coat is applied to give the entire system a nice finish. The brown coat is then applied after the application of the scratch coat, further strengthening the wall system. The scratch coat serves as the plaster system’s base coat and is, therefore, the first one attached to the wall. Plaster system is comprised of the scratch coat, brown coat, finish coat. Plaster is made of flexible material you can mesh together, allowing you to create a multi-layered coat plaster system. Plaster wall is durable, not because of the material it’s made of, but because of the way it’s constructed. After all, modern construction practices favor the use of the material in terms of labor, time, and costs. And it’s been the most popular material used for finishing interior walls over the last few decades. This mixture, as you might have already guessed, is called drywall. It was not until 50 years ago when construction professionals started adding gypsum into the mixture, allowing the compound to dry up more quickly. What is the difference between plaster and drywall?įor centuries, plaster had been the go-to material when constructing interior walls for homes. ![]()
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