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To do this, tap the wall surface with your knuckle. Tap Test: A tap test is a simple way to differentiate between plaster and drywall.Thickness: Plaster walls are thicker than drywall, so if your walls are quite thick, this could be an indication that it’s lath and plaster construction.
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Raised texture: Lath and plaster walls will usually have a raised texture, as opposed to flat drywall.Here are some telltale signs that you may have lath and plaster walls: Knowing what type of wall construction you have is important for upkeep and repairs, so it’s a good idea to familiarize yourself with these types of walls. Identifying Lath and Plaster WallsĪre you curious to know if you have lath and plaster walls in your home? Press a pushpin into the wall if it goes right through the drywall but not into the plaster, it’s likely a lath and plaster wall. The pushpin test is another way to quickly identify the type of wall you are dealing with. They also tend to be more solid than drywall, resulting in a different sound if you knock on them. Plaster walls are usually thicker than drywall and may have jagged hairline cracks in patterns, especially on older structures and in areas of high humidity. This creates a smooth wall surface that can be easily finished. The wood lath provides a framework for the two-part plaster, which is then spread on top of the wood laths. Lath and plaster walls are made of wood lath and plaster, two materials that were commonly used for building homes and other structures until the mid-20th century. If you want to learn how to tell if you have lath and plaster walls, knowing the basics is a great place to start. When it comes to walls, it’s important to know what you’re dealing with.