Mold On Underside Of Roof Sheathing

Mold that grows on the underside of roof sheathing due to ideal mold growth conditions being present.

Mold on underside of roof sheathing.

If your state doesn t allow you to take a sample to send to a lab recommend testing by a certified mold assessor. This phenomenon occurs in vented attics and is more common in new homes than old homes. Increasingly homeowners in the pacific northwest are noticing mold on the underside of their roof sheathing. When it s cold enough outside water vapor in an attic with improper ventilation can freeze on the underside of your roof.

One puzzling aspect of the phenomenon is that the mold is found in well built homes that comply with all relevant building codes. Mold growth provided it is not just cosmetic mold which can simply be left alone can be cleaned from wood surfaces by blasting scrubbing or even simple surface wiping depending on the surface accessibility and smoothness. Appears due to this incorrect installation mold is forming on the underside of the roof sheathing. Mold on the underside of roof sheathing is also very common.

Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. 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. Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements.

In the vast majority of cases the mold growth is caused by condensation. While this is easy to spot by the time you see it mold may have already begun to grow. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread. After several years of this there may be dark rings around protruding roofing nails and larger dark spots or areas on the roof sheathing and or exterior gable walls.

Attic insulation incorrectly installed and blocking soffit vents on north side of home. 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 can form but often it is. Welcome to mold help for you.