Mold On Roof Rafters

Power cleaning using spray equipment such as media blasting using baking soda or dry ice is very effective for these surfaces.

Mold on roof rafters.

At the south end of the roof the ridge changes direction causing an overlay condition. Water leaks and poor ventilation leading to condensation are the main roof defects which give rise to a variety of fungi moulds and insect attacks. In the vast majority of cases the mold growth is caused by condensation. Mold problems are indications of water problems.

Attic mold is often caused by warm moist air from the house leaking into the attic space. The roof has baffles at alternating thusses soffit and ridge vents. Cleaning mold from irregular or hard to reach wood surfaces media blasting. This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses.

Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest. Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.

Perhaps you use it for storage. The black mold is on the first 3 truss panels. Skips a few trusses and reappears on the next panel or two. Third the attic is dried out either using natural air flow or mechanical heating and dehumidification.

If the insulation has been affected by the mold remove it in thick trash bags and replace it with new insulation after you complete your mold remediation. Mold requires two things to grow. Moisture in your attic typically comes from leaks or condensation. If mold needs to be removed from a roof deck through which roofing nails penetrate hand wiping is not feasible.

At some point you will probably need to go to your attic for something. Second the current mold growth is killed with a fungicide. The nutrients are usually organic materials such as dust dirt and the. Fourth the residual mold staining is treated with an encapsulant.

Most mold professionals are not licensed to perform roof repair. Water and mold problems in the attic can deteriorate wood in the roof sheathing joists etc. A 10 x 10 area of plywood has been removed to provide air into this area.