Do you have to wash and sand the terrace before oiling?

Yes. All surfaces to be oiled must first be cleaned with a wash brush and detergent. If the surfaces are affected by fungus, clean them with a special mould detergent. Rinse thoroughly with water and allow to dry before proceeding. Once the wood has dried, sand to remove any wood grain, dirt, sharp edges at the ends, knots and roughness around screws, for example.

Anza slipverktyg för att slipa altan