I found these stains on vinyl siding and don’t know what may be causing it
It appears to be a repeating pattern in that it occurs about every 16 inches. But I don’t know how the stud spacing would make such marks.
This is the south facing wall.
It has not rained recently
It was cold but sunny , 9:30 am
1994 construction.
Have you seen anything like this before?
Any thoughts on the cause?
My neighbor had his house power washed and, as it dried, the dirt from water getting under the siding came out of the siding drain holes. It looked like that.
I’ll go back and get my radon machine later and when I’m there I can go up on the roof and check out the siding again.
I’ll look at the location of weep holes (Scott and Larry) and I’ll stick my hands behind the overlap of siding and see if the nail heads match up with locations of the spots (Junior).
There is a layer of house wrap behind the vinyl (I check this on every home with vinyl siding) in the places I checked, but I didn’t check this particular spot. It could be missing in this area.
I let you guys know if I can find any other useful info.
Thanks for the quick responses.