External Cladding : External Cladding Protection - Surface Protection
Most external claddings can be left untreated to go the traditional silver-grey colour in the sun within around 18 months.
Some claddings, such as kiln dried oak requires sealing all round in order to prevent moisture entering the timber and making it expand.
Numerous external timber treatments are available with different properties, and new treatments are coming out all the time. We recommend talking to www.wood-finishes-direct.com about the options available to you, as they have a brilliant, up-to-date technical department who can advise based on your specific situation and requirements.