The damaging effects of weather here in New England on unprotected wood begins immediately. Rain, melting snow, and even morning dew are quickly absorbed by the unprotected wood. This causes it to swell and soften. The suns heat causes drying which makes the wood shrink. These cycles of wet and dry swells and shrinks the wood causing it to warp and split.

Steve Recommends

•  First, clean your deck to remove the dirt, mold, and mildews that have accumulated over time.
• Do not use high concentrations of chemicals, as these will damage the wood and cause a white coating on the wood, which looks unattractive.
• Also high pressure can damage wood by removing the lignin within the wood.
• After the deck has properly dried (usually within a few dry days), you should take the opportunity to apply one or two good wood protectorates.

Do not be fooled by the mass marketed water repellents. Good products last and will protect your wood. Low-pressure power washing in combination with specially designed chemicals is the best way to clean.