Moldy Plywood Under New Roof

If there is a leak in the roof plumbing or windows the mold will reappear if the water is.

Moldy plywood under new roof.

This article offers advice on cleaning mold found on surfaces of un finished wooden building materials such as framing lumber rafters floor joists wall studs and building roof wall and floor sheathing such as plywood tongue and groove pine boards and other structural wood surfaces in buildings. In the vast majority of cases the mold growth is caused by condensation. Easily kill mold with a vinegar spray. Damaged roof sheathing that may need replacement now or when re roofing moldy roof sheathing an unlikely but not impossible source of airborne problematic allergenic or other mold in the occupied space mold contaminated insulation inadequate blocked or improper under roof ventilation.

Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. Best procedures for cleaning mold contaminated wood. Treat exposed molded subflooring with a mixture of 1 cup of borax and 1 gallon of water or an epa registered mold removal product. Mold on the underside of roof sheathing is also very common.

To prevent future mold growth remove the source of moisture causing it. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. Prevent future mold growth. Spray the solution on the moldy plywood.

Move any un moldy plywood boards to a new storage area or remove the cause of the mold to prevent mold from growing on other boards. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Mold usually grows due to excess moisture in the area either in the air or on a surface.

Wait 10 minutes scrub the area and repeat the process two more times. 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. Rafters run from the peak of the roof. Mold that grows on the underside of roof sheathing due to ideal mold growth conditions being present.

Treat the molded plywood.