Lath and plaster is a process used to finish interior walls and ceiling. After wetting the lath and surrounding plaster, spread a rough coat of compound into the hole. If you own an old house with plaster and lath walls, you may have discovered how utterly useless a stud finder can be. From here you will lightly tape in the molly bolt. In this DIY video, I’ll show how to hang stuff on plaster and lath walls using a molly bolt. As touched on before, if it's lath & plaster it's (typically) a stud wall, so unlikely to be brick. Also, assuming this is wood lathe strips, I'd orient the "legs" of the toggle up and down (perpendicular to the lathe) so that they'd cross over the lathe and be less likely to bust off the plaster key. Using a small hammer tap the screw to push the plug through the plaster and into the wall itself and stop when the length of screw sticking out equals the length of the wall plug. We moved into a house built in 1906, so many of the walls are still lath and plaster. Often a few screws that go through laths and screw till the head is on the lath will hold it firmly. Plaster is hard, and pounding a nail into it could crack it or disengage it from the lath that holds it in place. 6. Poking holes in plaster walls can leave bare lath flapping and loosens the plaster surrounding the opening. Long before the advent of drywall, using plaster to coat walls was a common practice. Soundproof drywall, though, rivals lath and plaster walls in terms of soundproofing. Plastic anchors are among the … Use a coarse drywall screw and secure directly into the stud instead. Tap the anchor into the hole you drilled. The hardened plaster will hold the metal lath in place. You thread the drywall screw through a plaster washer and then drive it through the plaster and into the ceiling joists, wall studs, or wood lath. Hold the drill steady and drill straight into the plaster. 7. The more expensive ones allow you to adjust the position of the TV. A plaster washer is a thin metal disk that increases the size of the head of a drywall screw so that it doesn’t pull through the plaster. It's a bolt that screws into a pair of spring-loaded metal "wings." However fixing into a wall becomes more interesting when you have lath and plaster. This has been removed as the plaster had become detached from the laths and was bulging. Because the plaster is thick and hard, it will be difficult to drive in a nail without cracking the wall. http://www.plastermagic.com | Before you get started on any plaster wall repair project, it's important to know what a lath and plaster wall looks like. You can detect timber walls by a simple scratching test below the wall covering. For all its ambience, character, and positive acoustical … Make sure to remove the tape once it is on the wall. Hanging stuff on plaster walls can be challenging. You’ll then want to use a piece of drywall to fill the empty space. This creates a horizontal working surface that allows the plaster to bind to it to give your walls a lasting surface. Lath is the name for the narrow boards of varying widths that are fixed to the timbers inside your walls. Force base coat into the lath. Once the lower screw and bracket were in place, I tightened this top screw. This sleeve also minimizes the amount of stress put on the plaster. Below is a lightly edited transciption of the audio track. 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I'd carefully cut (with chisel) the laths continuing on into the rest of the wall and make sure they are fixed properly (screw or nail). This compact plaster wall stud finder represents the affordable model … If the anchor … Hanging things on lath and plaster walls is a tricky business. Accidentally hitting a section of lath may cause a vibration and loosen the plaster away from the lath. Lath and plaster walls have a slightly better insulating R-value than do drywall wall … Again, see the picture above. The plaster that goes between the lath is called “keys”, and it locks the material in place. They come in two parts, one which is screwed to the wall and the other mounts to the screw holes on the back of the TV. Pointed mollys can be tapped into place with a hammer. Grab the strongest magnet you have and tie a piece of dental floss or string around it. There are also houses that used wire mesh as backing for the plaster. Fix the Lath. 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