Black Markings On Attic Sheathing 2017

This can be caused by the action of fungal growth and molds and the affect they have on the tannins in the wood.

Black markings on attic sheathing 2017.

Does mold on attic sheathing have to be removed. 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. This summer i cleaned the portion of the black stain with a dry mop as much as i could reach from the hatch opening.

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. After several years of this there may be. Fiberboard sheathing is normally a cellulosic product that is made from wood fibers. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.

In the vast majority of cases the mold growth is caused by condensation. Doing some remodeling and we found this under the drywall georgia pacific regular sheathing ps 57 and astm c 208 black board. When moisture condenses on plywood roof sheathing repeatedly or continuously the wood will turn black. 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.

Do you know if this product contains asbestos or a wood product. The dark stains on roof sheathing can usually be traced to one of two things. Last winter i took a look into the attic and noticed black stains and water marks on a portion of the sheathing material. Excessive humidity inside the house making its way to the attic where it then condenses on the structural members.

The photo at page top shows white attic mold on the roof sheathing and rafters and some brown or black mold on the attic side of ceiling drywall where we pulled back insulation. The presence of mold inside your home even if it. Mold on attic sheathing. Fiberboard sheathing is a wood product.

When looking for attic mold trace both leak.