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?
There isn't a lot of information, so I'll make some assumptions. First the black "spots" are on the inside of the roof sheating, the black spots are assumed to be mold and you live in a cold climate? ... read more
"Best" is a relative term. There are certainly options that provide different levels of comfort at different price points. Recently, we've used a product called Thermal Dry from a company called Bas ... read more