We’d advise calling in a professional for a job like this, however, it you want to attempt it yourself, here’s how the DIY experts at B&Q advise you do it: The first sign of this is sagging or bulging plaster. Over time, plaster can dry out, weaken and lose its holding strength, and the laths can start to pull away. Typically found in older homes, traditional lath-and-plaster ceilings are formed by nailing strips of wood or metal mesh (referred to as laths) to the ceiling joists to form a strong base, then adding layers of plaster on top. This same method works for small holes, too. Then prime and paint to match the wall.įor wider cracks, consider applying mesh or fiberglass tape over it before spreading joint compound over the top and smoothing out. After applying several thin layers, let it dry and sand the area to create a flat, smooth finish. ‘This will ensure you get enough easy sand into the crack for a substantial strong fill’, explains Nicholas Smacchia from Westchester-based company, Plastering by Nicholas.Įnsure you have brushed out any debris before applying joint compound or filler with a putty knife, scraping off the excess as you go. It may seem counterintuitive, but the best thing you can do is to make the crack slightly wider. How to repair cracks and holes in a plaster ceilingĬosmetic issues such as repairing nail holes and gouges caused by DIY work and fixing ceiling cracks that are fine in a plaster ceiling are relatively easy to deal with. Cover walls and furniture with plastic and lay down drop cloths so any dust and scrapings can be easily cleaned up afterwards. Regardless of the extent of repair work necessary, you’ll need to wear protective gear including a face mask and goggles, particularly when working with old plaster. Only once you’ve established the cause – and resolved any issues – are you in a position to think about how to repair a plaster ceiling. If the crack in question traverses the wall as well as the ceiling, you will want to know what causes cracks in walls to help solve the problem. In this case, you should bring in a professional to inspect in more detail’, says Ash Reed, interiors expert at Living Cozy. ‘While minor cracks are usually nothing to worry about, thicker ones (anything more than 1/10 of an inch) can be a warning sign that structural problems may be afoot. The cause of a crack in a plaster ceiling is more than likely cosmetic, occurring due to changes in temperature or as a result of DIY work, for example. Sometimes it’s obvious unsightly yellow stains are a clear sign of a moisture problem, so you’d be best off researching how to fix a ceiling with water damage for example. Track down the cause of the problemīefore you start any repair work on your ceiling, you’ll need to work out what caused the damage in the first place. Whether the damage has come as a result of fixing a ceiling leak, shoddy DIY work, simple wear and tear or something a little more serious, we’ve put together an easy guide to help you recognize the warning signs and know how to repair a plaster ceiling accordingly.
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