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Pressure treated deal
Lifetime preservative treatment
All of the external cladding, trims, doors and windows will be supplied pressure treated. This is a lifetime preservative treatment. The preservative is forced into the timber under pressure and penetrates below the surface, whereas all other treatments apply a coat of stain to the surface of the timber only. Pressure treatment is almost colourless except for a slight green tint caused by the copper content in the preservative. No further treatment is ever needed but if you want a coloured finish you can paint over pressure treated timber with normal wood preservative in any colour.