Mold In Attic Roof Sheathing

This appears to be mold on the roof sheathing in the attic.

Mold in attic roof sheathing.

This phenomenon occurs in vented attics and is more common in new homes than old homes. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread. Since the house is 31 years old the chances for condensation staining on the relatively low pitched roof sheathing are significant.

Mold on the underside of roof sheathing is also very common. One puzzling aspect of the phenomenon is that the mold is found in well built homes that comply with all relevant building codes. Attic mold cleaner attic mold removal how to clean attic mold how attic mold gets there in the first place and what to do to help prevent attic mold. In the vast majority of cases the mold growth is caused by condensation.

Increasingly homeowners in the pacific northwest are noticing mold on the underside of their roof sheathing. Perhaps you use it for storage. Mold problems are indications of water problems. The attic is truss framed with plywood sheathing.

Mold requires two things to grow. On the east side only there is black mold for the first 6 up the slope. The nutrients are usually organic materials such as dust dirt and the. Water and mold problems in the attic can deteriorate wood in the roof sheathing joists etc.

The white blown in insulation was used. The added layer of insulation in the attic floor is blocking the soffit vents. Moisture in your attic typically comes from leaks or condensation. The roof has baffles at alternating thusses soffit and ridge vents.

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 that grows on the underside of roof sheathing due to ideal mold growth conditions being present. It is only on the back side of the house and is darker towards the bottom. Attic spaces are one of the most common places in a home for mold to be found growing.

Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements. It wasn t until the mid 1980s that the energy codes changed.