Preparing bare wood surfaces

 

It was previously recommended to let the new wood surfaces dry for a year before applying the product.

It was previously recommended to let the new wood surfaces dry for a year before applying the product. This has changed and now it’s important that the wood gets protected the same year that you've built your deck, fence or any other project. The rule is now as follows: the wood’s internal moisture should be between 12 and 18% depending on the product used.

To dry properly, new wood must be exposed outdoor for 4 to 6 weeks when the weather is warm and sunny. If you don’t build it right away, leave spaces between the boards and insert wedges between each row to ensure adequate air flow. The wood must be covered on rainy days.

When planed at a mill, new wood surfaces have a slightly glazed finish (mill glaze) which reduces product penetration and adherence. They must therefore be prepared before coatings are applied. The main methods used to prepare bare wood are sanding, brushing and cleaning.