Rotted Back Door

One of the lingering repair issues on our new house was a rotted back door jamb. It is on the porch well under the roof line. A thing I noticed though is that when it rains really hard the gutters over flow and water backs up to this door on the pool deck.

This showed up on the home inspection. I probably shouldn’t have let it go this long, but what can I say? I started chiseling away at the rot and found it was pretty heavy down low, but didn’t go too far up. The 2x4s in the walls ok. They must have some kind of treatment to help prevent rot.

Once I was done putting out the rotted stuff I squared everything up so I could start putting new material back in.

I went with a foundation of pressure treated wood with PVC wood on the outside. The thicknesses didn’t all match up in places. I don’t really care that much, this will definitely not rot.

I did some heavy calking to fill all gaps and painting to keep the wood that is left in good shape. A lot of the door seal is missing at the bottom, but I haven’t seen anything splash against this door, just the rising tide of rainwater backing up. The closet is not under AC, so the seal wouldn’t matter for that either.


I fixed the door rot, but really the root problem is water backing up on the porch. I fixed the door 2 months ago, and it took me working off and on all that time to fully address every aspect of the problem.

First off, the gutters often fill with leaf debris which causes them to backup and overflow on the porch. I have been keeping the gutters clear, but still get overflow sometimes. As it turns out, when it rains hard enough, the water has a lot of velocity coming off the roof, and it can skip out of the gutter.

Next up is the channel drains in my deck. In doing some reading, paint isn’t good for them. I noticed in places the deck paint had completely covered the drainage slits. I used a pressure washer with the narrowest stream to strip the paint off the channel drain.

That was an improvement, but they still didn’t drain well. I picked up a pressure washer drain jetter hose. It is a pressure washer hose with a bullet shaped fitting on the end that shoots water forward and backwards at an angle to help you break up clogs and flush out drains and gutters. It was messy work, but I managed to flush the years of sand and sludge from my deck channel drains.

More improvement, but still not all in the clear. It turns out a root had grown up inside the side of the drain near the rotted door. The channel would move water, but was half full of roots, and didn’t drain as quickly as it should. A lot of work later, I got the roots cleared out.

With gutters clear, paint off the drainage slits, sludge out of the channels, and roots cleared out, it seems like they drain well now. Even if it doesn’t work perfectly every time, this should flood my porch a lot less than it has in the past. I will keep an eye on the water level and check the bottom of that door for cracks. The joys of home ownership.