If the decision is taken to remove the paint, for aesthetic reasons or for timber treating, consideration should be given to the method to be used to ensure maximum protection of the underlying surface. The underlying surface may contain architectural evidence of the buildings construction and use such as carpenters marks, tool marks, ritual marks, reed light burns and early decorative finishes which may have become overlaid with layers of paint. Careful cleaning of the timbers will allow timber treating against insect infestation as fluids used cannot penetrate painted surfaces. Carefully cleaned the timbers will also regain their patina and allow the characteristics of the wood to be enhanced and exposed.