White Mold In Attic Roof

Typically the condensation is caused by several compounding factors.

White mold in attic roof.

The mold itself may have a cottony texture but can also be velvety leathery or. The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space. Identifying the roof cause of attic mold. On the east side only there is black mold for the first 6 up the slope.

Because the majority of attic mold cases are caused by condensation it means you ll rarely find a smoking gun. White mold in attics. There are two main factors that cause condensation. The white blown in insulation was used.

Also notice the condensation stains at the shingle nail more evidence of a history of attic moisture which was a factor in this mold growth. The roof has baffles at alternating thusses soffit and ridge vents. Common areas of white mold growth include attic sheathing and crawlspace framing. Attics usually have a passive ventilation system in which outside air comes in through the soffit eave vents at the bottom warms up in the attic and escapes through the can or ridge vents at the top because hot air rises.

Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements. Tea tree oil and white vinegar are both completely natural and safe for wood but. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Mix 1 teaspoon of white vinegar or tea tree oil with each cup of water that you need to attack your mold colony.

A trained mold inspector can readily determine if the growth structure is from white mold or efflorescence. Click photo for larger image. This is where it gets tricky. Mold usually causes a musty odor and may cause staining that may be black brown gray white yellow or green.

In the vast majority of cases the mold growth is caused by condensation. The mold shown in the attic photographed above was identified as aspergillus sp. Additionally efflorescence will typically dissolve under the application of a water mist while mold growth will not. On attic mold visible on pine tongue and groove roof sheathing near the building eaves.

The attic is truss framed with plywood sheathing. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread.