Attic Side Sheathing

Mold must be removed from attic sheathing because the spores can cause serious health problems.

Attic side sheathing.

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. Pull down stair or ladder. I ve seen osb oriented strand board. Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring.

Affix rigid foam insulation to the attic side of the hatch or door. Check for areas of dark discoloration staining of wood e g. Below are a few ways to check for possible roof leaks. The best way to provide that sheathing is to use a rigid material.

Attic hatch or door. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. In the vast majority of cases the mold growth is caused by condensation.

The effects of mold exposure depend on your health and the amount of mold you re. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate. 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. Mold on attic sheathing.

Mold on the underside of roof sheathing is also very common.