For relentless PNW rain, choose algae-resistant asphalt shingles with SBS-modified asphalt, enhanced seal strips

https://zanderffcm631.theglensecret.com/the-best-shingles-for-constant-pacific-northwest-rain-2

For relentless PNW rain, choose algae-resistant asphalt shingles with SBS-modified asphalt, enhanced seal strips, and high wind ratings. Pair with waterproof underlayment and metal flashing to keep edges and valleys leak-free.