Mold On North Side Of Attic Ceiling

5 common causes of attic mold.

Mold on north side of attic ceiling.

Condensation is the most common cause of mold growth in an attic. Condensation occurs on the underside of the roof sheathing not beneath the insulation. Often in attics we also find cladosporium sphaerospermum or aureobasidium pullulans which looks about the same or a little darker on plywood or framing. It can often be found in creases and corners as well as.

Attic or cathedral ceiling mold cleanup. 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. Mold found in attic areas can be challenging at times when trying to pinpoint the exact cause and source of mold growth. Here we explain when a roof tear off is justified as part of an attic or roof mold cleanup project rarely and when roof tear offs are not justified.

The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space. It is usually found on the ceiling or walls of the attic especially where there is dampness poor ventilation or the surface is worn. Mold growth beneath the insulation would require a roof leak which you d typically notice on the ceiling inside the home before any real mold growth occurred.