Discolored Plywood In Attic

Hello i am close to buying a house but my inspector looked into the attic and says that there is lots of mold up there.

Discolored plywood in attic. I have surface mold on the sheathing in my 1982 vintage 12 6 pitched attic. However if the ducting above isn t installed properly or broken the moisture just ends up as water vapor in your attic. The black attic mold shown here confirms that this attic had a serious venting and moisture problem including moisture from sources lower in the building. The roof on the house is new but the sheathing was not replaced.

The moisture from a steamy shower is routed through the fan then the attic and finally outside the house. Black mold in attics. But then i read that this could be mold. This happens due to trapped damp air often in the late fall or.

Is that rotted wood. When moisture droplets collect on wood surfaces in an attic a discoloration often occurs. So i m confused the wood in the attic has black streaks discolorations. Does mold on attic sheathing have to be removed.

If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage you can install inch plywood or. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. In this photo of very dark mold in an attic in a wet attic mold which we found to be brown in the microscope looked black on the plywood. I thought this was a ventilation problem someone came to look at the wood and said it was fine.

The presence of mold inside your home even if it. I m aware of the cause poorly vented bathroom fans and not well sealed fan fixtures lights wires etc. 905 290 9101 british columbia lab. The wood has dark stains around where the old bathroom vent was pointing to in the attic the ventilation had been fixed to point outside at the time of changing the roof.

The decision regarding the thickness of plywood to use for the subfloor in the attic has a lot to do with how you intend to use the attic and it also depends on the spacing of the ceiling joists. I attached three pictures. Almost all attics in homes more than 25 years old will have some moisture stains on either the sheathing or the framing.