Preparation of walls
Before the painting begins, you should first take the time to prepare the walls. If there are still any nails or screws in the wall, you should remove them and then seal the holes with filler. The same goes for any gaps or cracks. Plug sockets and light switches should be removed or effectively masked for the painting process. Painting over wallpaper is not generally a problem. Whether it be woodchip or non-woven wallpaper, provided it is well bonded to the wall, changing its colour is not a problem. If the wallpaper is coming away in places, you can touch it up very easily with a little wallpaper paste.
Once the walls are prepared, you can get going with the spraying process. Jelena chose a two-colour design for the room, which is why more masking had to be done between the two walls. This achieves a straight edge and the adjoining wall is protected from spray mist. Cover sheets with a static charge that stick to the wall are ideal for this. Door and window frames, as well as skirting boards, also need to be masked.