Ronseal Fence life plus Medium oak Matt Fencing & sheds Wood treatment, 12L. Ronseal fence life plus+ can be used on all rough sawn and smooth planed sheds and fences. It\'ll stand up to rain, frost and snow and won\'t lose its colour in the sun. With 2 coats on rough sawn or 3 coats on smooth planed wood the colour will last for up to 5 years. Even better, you have the choice to brush it or spray it on and it can be applied to damp wood.. You can apply this opaque shed and fence treatment from the Ronseal Fence life range to all rough sawn and smooth planed sheds and fences, using a brush, to colour and provide protection. It takes 1 hour to dry and will cover up to 6 m² per litre on average. Shed and fence treatment by Ronseal.