black spots on the roof. can you tell me what is the cause of this? have lived in this house 12 years and have had no problems. what can you do to clean this?
Hey Terry,
Black spots on the roof usually form do on the Northern facing side of the home because it has less direct exposure to sun light.
Blue-Green algae is usually what the black spots are, ho ... read more
Hey John,
Here's the top three upgrades that I would suggest for your home:
1. Air Sealing and Insulation: This improvement always pays off. No matter if you're trying to keep cold air in your h ... read more