Attic Plywood Black

When moisture condenses on plywood roof sheathing repeatedly or continuously the wood will turn black.

Attic plywood black.

What are the tell tale signs of an attic mold problem. Black mold in attics. 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. Black mold in the attic.

If your attic sheathing doesn t look like new construction and is visibly black or white stained like this picture you likely have a ventilation issue that needs to be addressed and mold remediated. 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. Attic moisture and poor ventilation are the causes. In old houses you ll usually see some spots that are stained dark or black where there was a roof leak at some point in time which was repaired but the stain remains.

Dark black staining on wood surfaces if the wood in your attic shows any black discoloration the problem has moved beyond moisture. Some woods are much more resistant to rot and fungal attacks. It is also a potential breeding ground for black mold because it is often hot and humid and there is a potential for water seepage. The following picture is of a long standing moisture condition in an attic where much of the roof sheathing has turned black.

This can be caused by the action of fungal growth and molds and the affect they have on the tannins in the wood. The presence of mold inside your home even if it. The variety i see most often is fuzzy green when active and goes black like that when dormant or dead. This latter phenomenon occurs when the house is too humid and the warm moist air seeps into the attic where it condenses and freezes on cold attic areas.

When an attic is stuffy that indicates you have a ventilation problem which often results in mold problems. The attic is one of the parts of the home that is not frequently visited especially if it is difficult to access. If the dark surface of the wood smudges it could be mold. The second variable is the species of wood used in the plywood.

If the wood is soft if it s easily imprinted when you push on it it s probably rotten. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. You have mold that should be removed. The new roof doesn t help much most of the moist air is likely coming up from below.

Why does attic mold rarely if ever affect indoor air quality in homes. Attic feels excessively hot or stuffy attics should feel breezy if they are properly ventilated. Does mold on attic sheathing have to be removed. Black or white staining in attic.

Get rid of black mold. When this seepage occurs it can often go unnoticed until a major problem makes it known.