Mold On Attic Rafters

An average cost for standard mold remediation in an attic can cost between us 2 000 and 6 000 depending on the size and growth area.

Mold on attic rafters.

The white blown in insulation was used. Even if your roof is somewhat new chances of a leak can increase after the roof is disturbed in any way for work around that area. This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses. 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.

Click photo for larger image. On the east side only there is black mold for the first 6 up the slope. The mold itself may have a cottony texture but can also be velvety leathery or. If the mold growth in the attic is pronounced you may see it presenting atop attic insulation.

On attic mold visible on pine tongue and groove roof sheathing near the building eaves. Replacement of insulation may be necessary if this is the case. 3 fog the attic with a mildicide. 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.

Faulty roof insulation or construction can lead to leaks and a lack of proper ventilation can cause humidity to accumulate. The roof has baffles at alternating thusses soffit and ridge vents. Here are some recommended methods to prevent mold growth. The black growth on attic sheathing and rafters consists primarily of species of cladosporium alternaria or other genera of micro fungi but rarely if ever the potentially toxic stachybotrys mold black mold because attics are not consistently wet enough to sustain this kind of mold.

Each time it rains or snows water accumulates in your attic degrading the structure of the building and also leading to the formation of mold in the attic. However if the mold infests the internal structures you need to shell out between us 10 000 and us 30 000. Mold usually causes a musty odor and may cause staining that may be black brown gray white yellow or green. A leaking roof can contribute to attic mold in a major way.

Mold growth in an attic comes as a consequence of excess moisture. Attic mold is often caused by warm moist air from the house leaking into the attic space. The mold shown in the attic photographed above was identified as aspergillus sp. The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space.