Applying a quality water-repellent sealant to the deck surface provides the final layer of protection against direct rainfall and UV damage. For the homeowner, this translates to a more durable, safer deck that requires less frequent attention and retains its aesthetic appeal for years.
Preventing Hidden Moisture Damage Beneath Your Deck
This gap allows for passive air circulation, which helps the wood to dry if it does get damp and prevents the buildup of harmful gases from decaying materials below. Water doesn't merely sit on the surface; it seeks entry through microscopic gaps between deck boards, known as expansion gaps.
The barrier should be installed with a slight pitch to encourage water to run away from the house or structure. Understanding the Science of Moisture Intrusion To appreciate the value of a barrier, one must first understand how moisture attacks a deck.
Preventing Hidden Moisture Damage Beneath Your Decking Boards
Impact on Long-Term Maintenance and Costs While installing a moisture barrier adds an upfront cost and complexity to the construction process, it is a classic example of preventative maintenance saving significant expense later. When conditions dry, the wood contracts.
More About Decking moisture barrier
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