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|Why Is My Roof Dirty ?|
|What you see on your Tampa Roof is not dirt!|
The blackness is actually mildew that lands as a spore, germinates and then grows using the roofing surface as a nutrient base. Green Mildew will always appear initially on the north side of your house and roof in Tampa. This is because moisture stays there longer and mildew needs three things to grow: moisture, heat and some sort of nutrient. The humid, rainy climate here in Tampa Florida is ideal for Green Mildew and Black Algae growth!
Other variables besides the direction your house faces are the type, grade and manufacturer of your roofing shingles or tiles, whether you have a pond or swimming pool nearby creating abundant moisture and hot/humid weather here in Tampa. Continuous warm humid weather in Tampa promotes mildew growth. Shade on your roof provided by nearby trees can promote mildew growth due to increased moisture, as well as leaves and pine needles that sit on your asphalt shingle or barrel tile roof for extended periods of time.