With its high perch, a roof seems safe from harm -- but black algae travels on the wind and devours shingles like some sort of comic book villain. Protect your abode with today's deal: Pay $399 for a total roof cleaning and a three-year, stain-free warranty from A to Z Roofing (a $1,100 value). Relax as experts (who can travel within a 35-mile radius of Wareham) use a soft-wash system and a proprietary cleaning solution to rid your roof of dirt, grime, moss, and the black streaks caused by algae. By doing so, you'll extend the life of the shingles, increase your home's curb appeal, and reduce energy costs. This licensed and insured local company boasts more than 15 certifications -- plus, owner Zach Maynard personally backs the three-year guarantee. So go ahead and let his team wipe this scum off the face of the earth -- er, roof. Want more? Check out A to Z Roofing on Facebook.