Plywood In Attic Is Black

Black mold in attics.

Plywood in attic is black.

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. Attic moisture and poor ventilation are the causes. 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.

When moisture condenses on plywood roof sheathing repeatedly or continuously the wood will turn black. 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. The variety i see most often is fuzzy green when active and goes black like that when dormant or dead. The attic is one of the parts of the home that is not frequently visited especially if it is difficult to access.

The new roof doesn t help much most of the moist air is likely coming up from below. Saturday august 15 2020. Since the recent cold weather we have a unit owner that noticed frost black decking which they are concerned is mold. 07 10 2009 09 24 pm 7.

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. Some woods are much more resistant to rot and fungal attacks. Does mold on attic sheathing have to be removed. Black mold on attic side of roof plywood.

Something else you can do to help is get underneath the insulation and use 3m flashing tape to tape. 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. 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. 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.

I live in a condo in nh and this roof was replaced in november 2008. 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. The presence of mold inside your home even if it.