u/termikater

So we have not made an offer on this home, but are talking about it. One concern I have is there is black stuff outside of the gable vents on both sides of the home. The photo is from Google Street view August 2025 but the discoloration is still there.

Before we make an offer I wanted to vet if this looks concerning (obviously we'd have an inspection done if accepted but....). There is a bathroom on the first floor (it's a split level) but I have no idea if it vents through the attic area.

It's a clunky picture because I had to zoom in but a home we are looking at potentially making an offer on has black stuff coming out of the gable vents on both sides of the home.

Wanted to see if anyone here may know if this is an HVAC issue (or mold)? Obviously it's hard to give sound advice without actually seeing it, but not sure if this is common as I haven't ever seen it before.

The home has gas heat and they do not use the fireplace, but there is a bathroom on the top floor (it's a split level)

Cheers!