Water runoff from your roof is most likely the culprit. If you have a gutter system installed, make sure that it has been cleaned thoroughly to allow the water to be routed away from your landscaping. D not forget to check the downspouts too. If you do not have gutters, this would be an invaluable asset to your home. Correctly installed gutters and downspouts can not only add beauty to your home, but will protect your home, the foundation, and will help save the landscaping.

Your green roof is mostly likely caused by a mixture of moss, algae and mildew, and can easily be treated. Washing your roof carefully with bleach and water can usually sweep away most of the moss, but most likely, you will need to trim back some vegetation from your roof to keep it from coming back. In some circumstances where no sun is available, or the weather is perpetually damp, metal strips have been shown to curb the growth of these pests. An extreme measure would be to go with a full metal roof if the periodic roof washings become too much of a chore.

Your soffit might need some repair. When gutters get overloaded with leaves and debris, or were just not installed correctly, water will drain toward the roof. The fascia board can usually handle the normal rain fall and protect your soffit from damage, but when it fails because of water-logging, it will usually lead to a soggy soffit, and can then eventually damage the walls of your house. With every new gutter system, we repair and replace your soffits, install new fascia boards, and then correctly install your new gutters and downspouts.