I need to figure out how to stop this mildew or algae stuff that shows up on one of my rental house's older vinyl siding.
I end up having to pressure-wash this crud off at least yearly, but it really needs it 2-3 times per year! It's really ugly. What can I do to prevent it from coming back all the time?
The siding is otherwise in excellent condition.
Terri Pour-Rastegar, Blue Sky Homes, LLC | 803‑517‑6579 | http://www.carolinabsh.com