In the end, plastering a wall is all about creating a decorative surface that improves the durability of the structure, and conceals the original masonry. It’s a matter of taste, but for many clients this is a preferable finish. The crucial difference is that a skimmed plasterboard wall will appear smooth and glossy. The skim plasterer will place scrim, or hessian, over the joints and then skim the entire surface, ensuring that the wall appears continuous, with no sign of the joints between the boards. ![]() The resulting finish is matte and rough, which is often the reason why clients decide they want a skim layer. The joints between the boards need to be taped and jointed however, to achieve a flat surface. ![]() One of the advantages of using dry lining or plasterboard is that you can apply paint directly on to the surface without having to plaster, or wait for the skim coat to dry. The Process of Skimming Over Plasterboard The skim tends to be favoured because it provides a superior finish, and it adds an extra layer of sound proofing. If you’ve attached plasterboard, or drylining you have the choice of either painting or decorating straight onto the board, or finishing with a layer of skim plaster. If an existing plaster wall is in good condition – smooth and without major cracks or chips – then you probably don’t need to have it skimmed. ![]() With only one coat of skim plaster to apply, the job of the plasterer can now be carried out in a fraction of the time once needed. As deadlines have got tighter, and time has become more precious, plastering has adapted to meet new expectations. Traditional plastering is a long and complex process involving three different coats of plaster, all of which need time to dry before the next coat is applied. The ‘perfect skimmed finish’ isn’t easy to achieve, it requires a trained professional who has had years of experience as a plasterer. Either the skim plaster is applied to an existing plaster finish, or it’s used to cover plasterboard. Skimming is a plastering technique which involves applying a thin coat to walls to create the smooth surface required for painting or decorating.
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