Whether a lifelong resident or visiting on summer break, it’s easy to see that roofs in Florida get dirty quicker than what you may have seen in Norther states especially. From grimy looking tile and mossy shingles to ugly black streaks. Many homeowners seek roof cleaning services to make it all go away, but what exactly is creating the mess? Let’s explore the why and what’s behind the yuck.
The Grime = Mildew and Mold
Living in one of the country’s most humid and moist locations, roofs in Florida are an entirely welcoming environment for fungi and microbial growth. Generally, starting with spores traveling through the air, mold, and mildew occur in those little dirty pools and puddles of standing water in those nooks and crannies mixed with humid climates.
The Bad = Moss on Florida Roofs
As with mildew and mold, roofs in Florida are prime real estate for mossy growth. It can take less than four years in some areas for a roof to be entirely covered. This is particularly noticeable on roofs shaded most of the day with occasional damp, cooler weather. The lack of sunlight is often the most significant factor in how much moss may grow.
The Ugly = Algae and Lichens
Like a shallow pond or lake with an algae bloom, Florida roofs often have dark spots and ugly streaks. Often mistaken for dirt or mildew, it’s a form of blue-green algae. Unfortunately, by the time it is noticeable, it has grown for at least two months into visible streaks. All types of roofs are prone to algae, but asphalt shingles seem to be the most susceptible to airborne algae spores. Then, if algae meet fungi, it’s an entirely more complicated problem. The two will form lichen growth with the smallest of food sources, which can then ‘root’ itself if left too long and cause irreparable damage.
Preventive Measures for Roof Longevity
While there is no permanent remedy for algae, fungi, or microbial roof growth, preventive and regular cleaning. By keeping these pesky growths under control will lengthen the life of your roof when adequately cleaned. Therefore, it’s always best to hire a professional roof cleaner and pass on doing it yourself.

From colorful or black streaks, moss, or algae growth, any or all are expected in Florida’s humid environment. If you’ve noticed a growing spot or streak, let us come out for a free roof cleaning quote move toward getting it under control.
