Mold On Slate Roof

Fortunately slate mildew can be cleaned using basic household products.

Mold on slate roof.

When cleaning a slate roof don t use chemicals like ammonia or chlorine bleach. Identifying removing preventing algae fungus lichens moss on roof shingles. Use a long handled brush to scour the surface of the shingles and loosen stuck on. Photos and text guide diagnosis of asphalt roof failures how to identify and explain roof shingle failures obtain claims.

Technically the black streaks on roofs are a form of algae known as gloeocapsa magma. The black streaks are also known as black algae or roof mold. Those that tend to be the most humid furthermore they will only appear on the north side of the roof. Believe it or not those black streaks only appear on roofs in certain areas of the country.

Like all tile however slate can be prone to mildew and mold particularly if it is installed in a high moisture area like a bathroom a basement or a kitchen. Buildup of moss and debris on slate roofs hold moisture in the slates that can split them during winter. Spray the entire roof thoroughly. Mix up your cleaning solution.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. Just because slate takes longer to weather than most other roofing materials it does not mean that it is immune to organic growth. Moss mildew and algae are the most common growths seen on slate roofs. For the most part this growth is not harmful to the slate but it can lead to damage to the underlying wood sheathing.

Here we discuss the causes of algae moss lichens or fungal growth on roof shingles the effects of these conditions and how to cure or prevent them. Spraying the roof 1. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. Such harsh chemicals are incompatible with the copper components of your slate roof.

Asphalt roof shingle defects.