I agree with you there, just felt different to me somehow. Most homes here are vinyl as well. Many people neglect to clean them, hence why the uniform of the marks threw me off.
Ill note it with respect to monitoring the discoloration or when the weather warms to clean properly.
And if you have ever removed vinyl siding, it is filled with lady bugs and other insects, and when you wash the house some of that comes out of the weep holes.
Hey Junior , thanks again.
Yes a beer on a patio sounds like a great idea, once things calm down again. Things are well otherwise slowly picking up again after the holidays, although we just re-entered RED the other day, with the looming chance of another Lockdown if things dont start to settle down.
How are things your side ?
I have seen this before. Ask if the owner had pest control services. I have gone to several homes where technicians have sprayed for spiders and seen the same pattern. Some products will actually damage the siding, and some will leave stains like those in your pictures. Notice the stains are in the creases of the siding. Shows a pattern for treating spiders.