Roof Repair: Dealing with Rust and Repainting for a Perfect Match

Roof Repair

The guest house roof facing southwest had rusted in several locations, luckily this was the worse location I had to deal with. Rust on the surface does not mean you need to replace it, if it’s not all the way through it needs to be sanded and primed “before” holes develop.

Using a sander did not work well however the 4.5″ grinder did the job, once the rust was ground down metal primer was used then repainting to match the garage roof color which was not successful at first, the mixed paint color looked correct in Lowes however once it started going down it clearly was too blue so another trip back to Lowes for more paint, this time it was a great match to the garage color.

Guest house porch falling in

Before I bought this place I knew the porch was unsafe to walk on, I had to lay plywood down over the floor just to be able to walk across it until I had time to get to this problem, I needed water to the main house shower and toilet first.

After a couple weeks I removed the porch flooring strips and found joists that had fallen down due to rot and rusted through nails, the joists were no longer supporting the floor above, that said this was not too bad of a repair, I used a bottle jack to hold the joists up and installed exterior grade screws . One joist had some rot at the end so I sister it as seen in photo.

While I was down there making repairs I found the dryer was venting into the crawl space, this is never a good practice as it adds moisture to the crawl, the last pictures show the porch back together and the new dryer vent running to the outside.