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The main cause of a rotting porch post is prolonged exposure to moisture. So, the best way to prevent rot is to eliminate and guard against moisture.

• Use wood caulk to seal any cracks, openings, or areas along the post where water is likely to pool.

• Secure porch posts into concrete, if possible.

• Cover wooden posts with protective sleeves or wraps, often made of vinyl.

• Install metal post anchors for extra support.

While the chemical, copper-based coating on pressure-treated wood offers protection from rot and pests, it’s not a silver bullet. An added sealant will help protect the wood further, though sometimes the wood is treated in a way that causes premature failure, and this is largely out of your control. It’s simply a case of bad luck. Regularly inspect all your house’s wood to look for any cracks or signs of mold and mildew. Getting ahead of the problem is the key to ensuring it doesn’t grow out of control.

Ipe wood can last up to 75 years with minimal maintenance because its own oils help to preserve it. However, to get the most out of your Ipe wood deck, you should perform some routine maintenance, including regular cleaning, sweeping of leaves and debris, and rinsing spills with a hose. It’s also important to repair any deep scratches as soon as you spot them and reseal the deck annually to protect against scratches and scuffs.

Rotten deck boards can sometimes be repaired, but only if the damage is minor. Repairing small patches of rot involves strengthening the damaged area with wood hardener, filler, or epoxy. More substantial damage requires replacing the boards or rebuilding the entire structure in extreme cases. If the rot extends to the joists, posts, or beams, have a contractor evaluate the damage to ensure it is still structurally sound.