SHOULD YOU REMOVE MOSS FROM YOUR ROOF OR LEAVE IT ALONE?
Q:Is moss on my roof really a problem?
Todd:“Yes — and a bigger one than most people think. Moss isn’t just sitting there. It actually grows roots that lift your shingles and let water get underneath.”
Q:Can moss actually cause a roof replacement?
Todd:“Absolutely. We’ve seen roofs fail 5–7 years early just because moss wasn’t treated. What could’ve been a simple cleaning turned into a full replacement.”
Q:Is it safe to remove moss myself?
Todd:“That’s where people get into trouble. Walking on a wet roof is dangerous, and using the wrong method — like pressure washing — can destroy your shingles.”
Q:Why is pressure washing a bad idea?
Todd:“It strips away the protective granules on your shingles. That shortens the life of your roof and can void manufacturer warranties.”
Q:How often should moss be treated?
Todd:“In Portland, usually every couple of years depending on your home. If you’ve got a lot of shade or trees, you’ll need to stay on top of it more often.”
