You scrubbed that dark streak off your roof last summer, and now it's back again like it never left. Here's the truth, cleaning roof stains without addressing what caused them is like mopping up water while the pipe's still leaking. Most homeowners don't realize those black streaks aren't just dirt, they're algae that's literally eating away at your shingles. A Roofing Contractor Wimberley, TX will tell you that pressure washing might make it look better temporarily, but you're actually shortening your roof's lifespan. The algae spores are still there, buried in the granules, waiting to grow back. Sometimes the real solution isn't cleaning at all, it's replacement. A Siding Contractor Wimberley, TX can also spot whether moisture issues around your trim are feeding the problem. Western Skies Roofing & Construction : https://www.google.com/maps?cid=9229191897320819968 Read the full story : https://socialytime.com/blogs/118476/Why-That-Roof-Stain-Keeps-Coming-Back-Even-After-You