Why you should have your roof cleaned: Having a clean roof is not just for looks. Making sure your roof stays clean not only improves your roof’s effectiveness and protection by removing harmful moss, algae, and debris that cause damage to your roof and reduce its lifespan. Moss and algae are especially damaging to your roofing; they will start to break down your roofing material causing premature wear and tear, particularly harmful to asphalt shingles. Dark stains and moss increase heat absorption, leading to higher cooling costs. Failure to maintain your roof can also affect your homeowners insurance, as most insurance companies won’t cover damages resulting from a lack of proper roof maintenance. A clean roof instantly raises your home's value (especially when your neighbors' roofs look unkempt). So why shouldn’t you treat your roof to a thorough cleaning?