Plywood In Attic Is Black

Black mold on attic side of roof plywood.

Plywood in attic is black.

Attic mold cleaner attic mold removal how to clean attic mold how attic mold gets there in the first place and what to do to help prevent attic mold. Something else you can do to help is get underneath the insulation and use 3m flashing tape to tape. Today s bge energy audit 8 15 20 in randallstown md yielded some great information that i want to be sure to pass along to as many people as possible because this stuff really makes sense. Some woods are much more resistant to rot and fungal attacks.

The presence of mold inside your home even if it. Attic moisture and poor ventilation are the causes. Even if conditions are conducive to mold growth elevated moisture plywood made from a fungal resistant wood will resist mold growth for quite a while. Since the recent cold weather we have a unit owner that noticed frost black decking which they are concerned is mold.

The following picture is of a long standing moisture condition in an attic where much of the roof sheathing has turned black. 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 live in a condo in nh and this roof was replaced in november 2008.

The attic is one of the parts of the home that is not frequently visited especially if it is difficult to access. The mold is likely coming from a condensation buildup along your soffet a good trick would be to get in there and attach cut foam blocks at the top of your wall cavity up to the roof deck to seal the soffet of from the attic space wherever cooler and warmer air mix there will be condensation. 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 second variable is the species of wood used in the plywood.

This can be caused by the action of fungal growth and molds and the affect they have on the tannins in the wood. When moisture condenses on plywood roof sheathing repeatedly or continuously the wood will turn black. I spoke to the roofing company that did the installation and a second roofer that did other units for us and they re thoughts are that the attic does not have sufficient insulation. Black mold in attics.

Does mold on attic sheathing have to be removed. The variety i see most often is fuzzy green when active and goes black like that when dormant or dead. Saturday august 15 2020.