In this video, we’re breaking down how to handle plywood patching when your chimney flashing leaks and ruins the wood underneath, especially on a metal roof that’s less than ten years old.

So here’s the deal , when you spot rotten plywood around your chimney, you definitely can replace those damaged sections without tearing off your entire roof. First thing, you gotta carefully remove the metal roofing panels around the affected area so you don’t mess up the rest of the roof. Next, cut out all the rotten plywood until you hit solid, dry wood. Then, measure and install new plywood patches that match the thickness of what you took out to keep everything level. After that, you want to reflash the chimney properly , this is super important because bad flashing caused the leak in the first place. Use high-quality metal flashing and sealants designed for metal roofs to prevent future leaks. Once that’s done, reinstall the metal roofing panels carefully, making sure they fit snug and secure over the new plywood and flashing. Taking your time with this means you’re not just slapping on a quick fix, you’re setting up your roof to last longer and stay watertight.

One of the biggest mistakes I see is rushing the flashing job, which just leads to leaks coming back no matter how nice your plywood patch is. Another is not replacing all the rotten wood , if you leave even a little decay behind, it’ll spread fast. And lastly, people sometimes don’t seal the flashing edges well enough, so water sneaks in through tiny gaps. The fix? Always inspect thoroughly, replace all rotten plywood, and use quality flashing with careful sealing to lock out moisture.

BigHomeProjects.com is a solid resource that links homeowners like you with trusted local contractors who know their stuff about roofing and repairs. Plus, it’s great for contractors looking to find work from people who actually need pros for projects like this plywood patch and chimney flashing job.

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