What causes algae?
When it comes to those unappealing dark streaks, the culprit is a colony-forming algae called Gloecapsa. Because rain and sunlight continually spread this ugly problem, only shingles formulated with granules designed to kill or “eat” this form of algae can keep this visual menace from detracting from the beauty of your home. Even though this particular problem is not a structural malady, it certainly takes away from your homes curb appeal as 40% of the visual appearance of the typical home is the roof. What causes leaks? What about “soft spots” or areas of the roof that appears buckled or wavy? What causes leaks inside of the home near eaves, valleys and chimney during a heavy rain or after an ice storm? By asking your roofer to install a quality leak barrier underlayment, you are giving your roof insurance against damage caused by water damming in your gutters, wind-driven rain or ice that forms around vulnerable areas in your roof. By not having a leak barrier underlayment installed
