Lime wash has been used for centuries to cover walls, since possibly Roman times and is popular for its matt-chalk finish. Its breathable properties make it a good choice for old houses and those prone to damp. Lime wash can be used on both exterior and interior walls.
What is lime wash?
Limewash is exactly what its name suggests - a mixture of crushed limestone and water
How to lime wash a wall
Protect floors and surfaces and prepare your walls. Pull out nails or screws, fill any holes, scrape off peeling paint and sand down any bumps to create a smooth base.
Seal any stains that show though and make sure the wall is clean. Cover the walls with an acrylic-based primer; this will help the lime wash adhere to the surface and prevent peeling and cracking.
Following the manufacturer’s instructions, prepare the lime wash. Using a long-haired brush, apply the wash onto the wall using crisscross strokes, and keep a wet edge as you work. Add more wash to start feathering in the strokes, and work in any drips. Allow to dry.
Apply a second coat. This layer can be slightly watered down to allow the first coat to show through. Apply a third, watered-down coat for the finished effect.
For easy maintenance, either reapply a dilute coat when necessary, or seal with a matte wall sealer - however seek advice before applying sealer if your house is prone to damp.