Discolored Plywood In Attic

The moisture from a steamy shower is routed through the fan then the attic and finally outside the house.

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. The presence of mold inside your home even if it. Almost all attics in homes more than 25 years old will have some moisture stains on either the sheathing or the framing. In a reasonably well insulated and vented attic stains may appear due to condensation.

I thought this was a ventilation problem someone came to look at the wood and said it was fine. The second variable is the species of wood used in the plywood. I m aware of the cause poorly vented bathroom fans and not well sealed fan fixtures lights wires etc. There are a couple of boards in the pictures that i circled that are a grayish color.

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. Does mold on attic sheathing have to be removed. When moisture droplets collect on wood surfaces in an attic a discoloration often occurs. I attached three pictures.

But then i read that this could be mold. 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 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 roof on the house is new but the sheathing was not replaced.

I have surface mold on the sheathing in my 1982 vintage 12 6 pitched attic. Black mold in attics. 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. However if the ducting above isn t installed properly or broken the moisture just ends up as water vapor in your attic.

Is that rotted wood. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. Some woods are much more resistant to rot and fungal attacks. So i m confused the wood in the attic has black streaks discolorations.

Attic stains may fall into this category depending on the severity.