When painting walls, it’s important to apply an undercoat, especially on a new wall. It smooths the surface, fills in any gaps, covers joins and provides a good, sound surface to paint on. For an older wall, choose a three-in-one formula to prime, seal and undercoat. This will help prevent stains from seeping through, as well as improve the new paint coverage.
A roller with an extension pole makes it easier to roll all the way from your corners to down to your skirting board. Make sure your roller fits the roller frame, which then fits the roller tray. For the roller cover, look for a nap of 10-15mm, which is good for the low sheen paints you’d typically use on walls. Stir the undercoat with a paint stirrer before pouring it into the roller tray.
Work from ceiling to floor, moving along about a metre, before reloading the roller and covering the next metre.