Deck Replacement Uncovered Serious Rot and Structural Damage

What looks like a simple deck replacement can turn into something much bigger once you start pulling things apart. That's exactly what happened here. The old deck came off, and what we found underneath was a rim joist that had been rotting for years - completely compromised and soft all the way through. The kind of damage that doesn't show up until you're already into the job.

The rot had worked its way into the framing behind the wall, right below the sliding door. We're talking about structural wood that's supposed to support the weight of the home's floor system. When that goes bad, it's not something you patch over. We pulled all of it out - damaged rim joist, deteriorated framing, anything that wasn't solid. Then we checked the sill plate to make sure the damage hadn't spread further than what was visible.

Once the bad material was out, we got to work on the repair. Fresh insulation went back in where it had been exposed. Then we installed new pressure-treated lumber - the right material for this location since it's going to be up against concrete and exposed to moisture. Before anything got buttoned up, we ran house wrap and proper flashing across the entire opening. That step is what keeps water from getting back in and starting the whole process over again.

This is the part of a deck project that most homeowners never see - and the part that matters most. A new deck surface on top of a rotted structure isn't a repair, it's a cover-up. Our framing and structural repair work makes sure the bones of the home are solid before anything else gets built on top of them. The finished deck will come next, but only because the foundation underneath it is now done right.

Every job like this is a reminder that hidden damage is real. If your deck is older or you've noticed soft spots, staining near the ledger, or gaps between your siding and the deck frame, it's worth having someone take a closer look before the problem gets bigger.