Mold On Roof Rafters

In the vast majority of cases the mold growth is caused by condensation.

Mold on roof rafters.

Re roofing with lining lining papers sarking roofing felt can cause severe mold growth and rot due to reduced ventilation. 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. Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements. Water and mold problems in the attic can deteriorate wood in the roof sheathing joists etc. At the south end of the roof the ridge changes direction causing an overlay condition.

Second the current mold growth is killed with a fungicide. Third the attic is dried out either using natural air flow or mechanical heating and dehumidification. The roof has baffles at alternating thusses soffit and ridge vents. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread.

Moisture in your attic typically comes from leaks or condensation. Mold requires two things to grow. Examine the insulation along your rafters. 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. This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses. Most mold professionals are not licensed to perform roof repair. The nutrients are usually organic materials such as dust dirt and the.

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. 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. And eventually cause wood rot and reducing the life of your roof. Power cleaning using spray equipment such as media blasting using baking soda or dry ice is very effective for these surfaces.

Fourth the residual mold staining is treated with an encapsulant. At some point you will probably need to go to your attic for something. Cleaning mold from irregular or hard to reach wood surfaces media blasting.