Hey folks! I'm wondering if the outside corner pieces of my vinyl siding were installed incorrectly? I've noticed that the top corner piece doesn't overlap with the bottom one like I expected; instead, the bottom piece sits on top of the top piece. This makes me worry about potential water getting behind the siding. Also, I can see some rotting sheathing from my basement underneath this area. I've observed that there's no starter strip used anywhere on the house, and I even saw a mouse crawl out from the gap between the siding and the sheathing where the rot is visible. This installation was done before I bought the house, and I missed these issues until a few years later.
1 Answer
Yeah, that looks wrong to me. It seems like it might have been a repair that wasn’t done properly. For sure, both corners are different, but they should’ve been installed correctly. You could use caulk as a temporary fix if you need to for now.

Thanks for your input! I don’t think it’s a repair though; it looks more like a poor installation since all the corners are like that. Guess I’ll be resorting to caulk.