True Blue uses a gentle, low-pressure cleaning solution designed to effectively eliminate black streaks, algae, moss, and lichen without causing any damage. By investing in roof cleaning, you are actively contributing to the extension of its lifespan as it effectively prevents the growth of moss and lichen, which have the potential to embed roots into the shingles and lead to premature leaks. The black streaks evident on your roof are actually a type of algae referred to as gloeocapsa magma. This particular form of algae creates an ideal environment for moss to flourish, posing a threat to the condition of your roof. Therefore, addressing this issue through professional cleaning not only enhances the appearance of your roof, but also safeguards its structural integrity, preventing pre mature roof replacement saving you money in the long run.