Blackened Roof Sheathing

When the roof sheathing is rotted or damaged or when other structural repairs are needed a tear off is unavoidable.

Blackened roof sheathing.

Ive spent hours staring at a single picture. Thanks for sharing it. Mold can form but often it. Does mold on attic sheathing have to be removed.

Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. At this time the ventilation should be entirely removed and insulation installed directly on to the roof sheathing. The presence of mold in your attic is often the result of poor ventilation insufficient insulation moisture from a roof leak or improper venting from your bathrooms or kitchen. The presence of mold inside your home even if it.

Jim katen oregon. If the frost does melt it will further wet the wood in the attic staining it. Mold that grows on the underside of roof sheathing due to ideal mold growth conditions being present. That whole site is loaded with cool pictures.

When attic surfaces or insulation contain a large reservoir of toxic or allergenic mold and if the area were inaccessible say because the space is too small to enter then it may be necessary to remove some portion of roofing. Therefore our recommendation was to focus on lowering the interior humidity levels and wait until the roof is due for replacement. When moisture condenses on plywood roof sheathing repeatedly or continuously the wood will turn black. The following picture is of a long standing moisture condition in an attic where much of the roof sheathing has turned black.

After several years of this there may be dark rings around protruding roofing nails and larger dark spots or areas on the roof sheathing and or exterior gable walls. Mold on the underside of roof sheathing is also very common. Also a heavy layer of snow on the surface of the roof will insulate the sheathing and may keep the frost from melting altogether. This can be caused by the action of fungal growth and molds and the affect they have on the tannins in the wood.