Black Mold On Roof Rafters

When looking for attic mold trace both leak.

Black mold on roof rafters.

Black mold in attic. Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements. The black mold is on the first 3 truss panels. Poorly maintained roof gutters and eaves may lead to water seepage under and between slats.

Mold usually causes a musty odor and may cause staining that may be black brown gray white yellow or green. The roof has baffles at alternating thusses soffit and ridge vents. Black mold can also grow behind the walls or attic ceilings completely undetected until the occupants smell the presence or experience health problems. The mold itself may have a cottony texture but can also be velvety leathery or.

In the attic photograph at left we show a mix of green gray and white attic mold. Not only can this cause black mold to grow on the inside it may also cause damage to the outside of the home as well. The photo at page top shows white attic mold on the roof sheathing and rafters and some brown or black mold on the attic side of ceiling drywall where we pulled back insulation. This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses.

Attic mold is often caused by warm moist air from the house leaking into the attic space. A 10 x 10 area of plywood has been removed to provide air into this area. Mold species such as stachybotrys chartarum which looks like slimy growth loves attic basement bathroom and space under the sink. Leaks in the roof may also cause black mold in the attic.

At the south end of the roof the ridge changes direction causing an overlay condition.