How to Tell If Deck Wood Is Rotten?
Without proper water sealing, wooden decks may experience wood rot. Water remaining on wood for long periods of time seeps into the porous surface, swelling deck planks. The absorbed water creates soft or spongy areas, rotting the wood and compromising the integrity of the deck. The deeper the wood rot, the more likely the wood needs replaced with new deck boards. A slight penetration of wood rot may allow you to save the wood by an application of water sealant to keep the wood from absorbing any more liquid.