Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Attic side sheathing.
Comes in standard 4 by 8 foot sheets is strong durable and relatively light.
And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity.
Mold on the underside of roof sheathing is also very common.
As a quick.
Mold must be removed from attic sheathing because the spores can cause serious health problems.
The best way to provide that sheathing is to use a rigid material.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.
The common grade of plywood for roof sheathing is cdx.
Mold on attic sheathing.
Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.
Plywood is a bit more expensive but is usually.
Roof sheathing or decking is one of those elements.
The effects of mold exposure depend on your health and the amount of mold you re.
In the vast majority of cases the mold growth is caused by condensation.
Georgia recognized this problem about a decade ago and started requiring all attic kneewalls to have sheathing on the attic side and to be insulated to at least r 18.
I ve seen osb oriented strand board.
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.