![]() This will help make sure that all finishing meet a certain level of quality. What are the different drywall levels?Ī group of four industry trade associations has agreed on a set of standards for the level of finish on gypsum boards. I have personally always sanded after applying a skim coat, regardless of what type of finish I was going to use since this will give you the best results. If the walls are going to be wallpapered then you don’t necessarily have to sand, but I would recommend it if the surface is not completely smooth. If you’re going to paint your surface with a paint with gloss such as satin,semi-gloss or gloss, then I recommend sanding the surface since the slightest imperfections will show up with those types of paint. Skim coating is sometimes necessary after repairing cracks or damage to the surface, as well as before painting or wallpapering. What is a skim coat?Ī skim coat is a thin layer of joint compound, that is applied over a wall or ceiling surface in order to create an even, smooth surface. Here are some commonly asked questions about the topic. If you’re just going to skim-coat a wall or two then just use a knife and a pan. I recommend using a 9-inch roller frame/cover for this since it gets heavy with the mud on and you’re going to want to avoid fatigue. You can use a roller cover with a thick nap such as ½-inch or ¾-inch to apply the mud. ![]() Otherwise, I recommend rolling on the joint compound. The most effective way to apply the mud is with a spray rig and if you have a lot of drywall to skim coat then you should look into if you can rent one. The mud can also be sprayed on if you have access to that kind of equipment. You can either roll on the mud or apply it with a taping/joint knife and a mud pan. Rolling on the drywall mud is more effective than applying it with a knife.
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