Mold On Roof Rafters

At some point you will probably need to go to your attic for something.

Mold on roof rafters.

In the vast majority of cases the mold growth is caused by condensation. This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread. Perhaps you use it for storage.

Examine the insulation along your rafters. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate. The black mold is on the first 3 truss panels. Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.

If mold needs to be removed from a roof deck through which roofing nails penetrate hand wiping is not feasible. A 10 x 10 area of plywood has been removed to provide air into this area. Fourth the residual mold staining is treated with an encapsulant. Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements.

Third the attic is dried out either using natural air flow or mechanical heating and dehumidification. Attic mold is often caused by warm moist air from the house leaking into the attic space. Mold problems are indications of water problems. Most mold professionals are not licensed to perform roof repair.

Second the current mold growth is killed with a fungicide. 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. Mold requires two things to grow. At the south end of the roof the ridge changes direction causing an overlay condition.

Power cleaning using spray equipment such as media blasting using baking soda or dry ice is very effective for these surfaces. The roof has baffles at alternating thusses soffit and ridge vents. Skips a few trusses and reappears on the next panel or two. The nutrients are usually organic materials such as dust dirt and the.

Cleaning mold from irregular or hard to reach wood surfaces media blasting. Re roofing with lining lining papers sarking roofing felt can cause severe mold growth and rot due to reduced ventilation. And eventually cause wood rot and reducing the life of your roof.