When moisture condenses on plywood roof sheathing repeatedly or continuously the wood will turn black.
Black mold on roof sheathing.
The following picture is of a long standing moisture condition in an attic where much of the roof sheathing has turned black.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread.
In our roof interior attic photo at left you can see antique roof framing along with black stains and probably some mold growth from a long history of roof leaks.
The effects of mold exposure depend on your health and the amount of mold you re exposed to.
Mold must be removed from attic sheathing because the spores can cause serious health problems.
This can be caused by the action of fungal growth and molds and the affect they have on the tannins in the wood.
One such type is stachybotrys chartarum.
Mold can form but often it.
Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements.
Mold that grows on the underside of roof sheathing due to ideal mold growth conditions being present.
Mold on attic sheathing.
This article offers advice on cleaning mold found on surfaces of un finished wooden building materials such as framing lumber rafters floor joists wall studs and building roof wall and floor sheathing such as plywood tongue and groove pine boards and other structural wood surfaces in buildings.
Best procedures for cleaning mold contaminated wood.
The presence of mold in your attic is often the result of poor ventilation insufficient insulation moisture from a roof leak or improper venting from your bathrooms or kitchen.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
The color of a mold isn t.
In the vast majority of cases the mold growth is caused by condensation.
Black mold refers to several species of mold which is a type of fungus that have a dark green or black appearance.
How to get rid of black mold on wood and plywood this short article provides insight on cleansing mold discovered on surface areas of un finished wood structure products such as mounting lumber rafters flooring joists wall surface studs and also structure roof covering flooring and also wall surface sheathing such as plywood tongue and groove ache boards and also various other.