The opposite side or the side that is printed on should face away from the room and be fixed at the rear, it is not advised that you plaster onto this face, however when it comes down to it, plaster will stick to this face also with no problems. With plasterboard that has tapered edges, these should also be on the grey or coloured side as they also need to face into the room when the plasterboard is just being decorated and not skimmed as they can be filled to produce a seamless joint. In terms of what face you should plaster over, it is generally regarded that you should plaster over the grey or coloured side as this should be the side that faces into the room. Yes, you certainly can skim plaster straight over bare plasterboard, this is essentially what it’s designed for. Skim coat plaster applied to ceiling Can You Skim Straight Over Plasterboard Although essentially the same process as skimming over base coat plaster, this is known as “over skimming” Over time, as the skim coat is easily accessible, it can become knocked and damaged and during the renovation of a property, walls are often skimmed over again to give them a fresh flat finish ready for any new decoration. This is generally laid on the surface at a thickness of around 3 – 5mm to give a total thickness of base coat and skim coat plaster of around 18mm. This is laid on at a thickness of somewhere between 13 and 15mm.Īs basecoat plaster is quite rough and a nice flat and even finish is needed for the interior of a home a finishing coat or skim coat is applied on top that can then be smoothed and levelled to give an excellent finish for decorating. When plastering a bare brick or block wall, the first coat that is applied is know as the base coat plaster and this is laid on the wall using either bonding plaster or basecoat plaster. Skim plastering is essentially the process of laying on a thin layer of plaster over a rougher base coat plaster that is then flattened off to produce a beautifully smooth finish that can then be painted or wallpapered. It is not difficult to actually get it on the wall or ceiling, but getting it flat and smooth before it dries rock hard requires a great deal of hard work and practice.Īs with any job like this we would always suggest that you practice and hone your skills first so in this DIY guide we run through the process of how to skim plaster a wall or ceiling. Skim plastering or top coat plastering as it’s also known is a very tricky job indeed for first timers.
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