August 8, 2026

Learn what causes black streaks on asphalt shingles, how algae differs from moss and lichen, and why low-pressure roof-safe cleaning matters.

Find out when granules in gutters are normal, which shingle granule-loss patterns signal damage, and when to request a roof inspection.

Compare roof rejuvenation and roof replacement by roof condition, damage, cost scope, and long-term needs—and learn which warning signs rule treatment out.