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We are known to pay exquisite attention to details and finishes. Dennis came out to my house in Plymouth and skim coated all of my walls after I damaged them removing wallpaper. He repair eight separate walls and…. Russell Plastering is a fine business with hard working men. I couldnt have asked for a more reliable company. Advertise with Us. Website Directions More Info. Plaster Art Plastering Contractors. Website Services. Master Plaster's Plastering Contractors. World's Best Plaster.
Matt's plaster and drywall Home Improvements. Isc Solutions Plastering Contractors. Being able to spot the signs of damage is a must-have skill for anyone who lives in an old home. Early detection means the problem is easier to fix before it gets too bad. Plaster is likely to be damaged by movement or the results of external factors like impact or damp. Over time, plaster may delaminate or become detached from the surface beneath.
In the case of stud walls and ceilings, timber laths are fixed between the studs or joists and the plaster is pushed through the gaps between the laths.
Rotten laths can result in plaster sagging or bowing. Some cracks and bulges in plaster may be superficial or localised; others result from failure of the masonry or timber beneath, or may indicate wider structural problems within the building. Major repairs underway to a lath and plaster wall; plastering laths on the ceiling is usually fairly straightforward. Where an area of plaster has become detached from masonry it can sound hollow when tapped. If it has lost its key to laths, it may feel springy.
In both cases the plaster might remain intact as haired lime plaster is generally strong and acts as a sheet, even if areas have parted company with the wall itself. Conservators use specialist methods to reattach loose plaster or delaminating layers, especially where of historic value, so if in doubt bring in an expert.
Problems with ceilings frequently result from the plaster bond having failed, structural movement, failure of joists, damp problems and rotten or beetle-infested laths.
Wallpapers, paints and other finishes can spoil the appearance of plaster surfaces and may trap moisture. When removing, proceed with care and be aware that wallpaper may be acting as a support to defective plaster underneath. Three-coat plaster is a system of multiple layers that work together to form a strong, sound-dampening, fire-resistant wall. Three coats of wet plaster are applied in layers to the lath: the scratch coat, the brown coat, and the finish coat.
The scratch coat goes in quickly. The top surface of this scratch coat is then scored to prepare it to receive the second or brown coat. As the brown coat goes on, the plasterer levels out wall surfaces and creates square and plumb corners. Once the brown coat has cured, the top or finish coat goes on, either smooth or in a variety of textured finishes.
The result is a superior, handmade wall surface that offers surprisingly good insulation and sound-proofing qualities. This article concerns itself with three-coat plaster , applied to wood or metal lath and troweled smooth. Mouldings, however, are run in place, the profile created by pushing a template against wet plaster.
Ornaments including ceiling medallions are cast in a mold, then applied. Known variously as plasterboard, gypsum board, Sheetrock a trade name , rock, or wallboard, drywall is a uniform panel of gypsum plaster pressed between thick sheets of paper. In the U. It can be nailed or screwed to wood or metal studs. Once the joints are taped and coated with joint compound, drywall is ready to be painted or wallpapered.
Manufacturers offer drywall for diverse uses and settings: there are fire, moisture, or mold resistant varieties, for example, and rock that serves as a base for tile installation. This makes it easier to tailor drywall with specific characteristics to areas where moisture or mold is a problem. For a bathroom where the original plaster is long gone or compromised by water damage, for instance, greenboard is an excellent choice.
Cracks can be caused by foundation settlement, undersized joists, seasonal and humidity changes, and poorly executed repairs. Cracks can range from hairline-size to very wide. They can follow structural members in a straight line or run diagonally across the wall surface.
Patching cracked walls is a skill that falls somewhere between the trades of plastering and drywall finishing. In other words, a willing beginner can make minimal repairs, and with practice, progress to more challenging projects. Allow each layer to dry, then sand lightly before applying the next coat. Sand the patch smooth with fine-grit sandpaper on a sanding block. Then check to see whether one side of the crack is higher in relief than the other.
There may still be some follow-up taping and filling once the product is in place. If the plaster moves, or one side of the crack is visibly higher in relief than the other, dig out the crack on the high or loose side with a utility knife or a crack opener, a small hand tool.
Remove enough material to reach sound plaster. Keep in mind that plaster continues to move over time. Most professional plasterers recommend securing the loose or high side of the crack with plaster washers, wafer-thin perforated discs see below that refasten plaster to lath, and drywall screws before filling in the crack. To repair moving cracks in plaster, secure the loose or high side of the crack with plaster washers before filling in the crack.
Although the washers will flatten as the screw is driven into place, they will still stand slightly above the wall surface.
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