Serious question, does anyone actually pressure wash their roof or is that a scam?
I was up on my neighbor's roof last week helping him clean his gutters and noticed his shingles looked way cleaner than mine. He told me he paid a company $400 to pressure wash his whole roof last spring. I've always heard that pressure washing a roof can blast off the granules and ruin the shingles, but his roof looks fine after a year. On the other hand, my cousin in ABQ did it and got water inside his attic because the pressure forced water up under the edges. Has anyone here had a roof pressure washed without problems, or is sticking to a soft wash the only safe way to go?