Mold On Roof In Attic

Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.

Mold on roof in attic. In our roof interior attic photo at left you can see antique roof framing along with black stains and probably some mold growth from a long history of roof leaks. What does attic mold growth from a roof leak typically look like. Even in this case in our opinion the reasons to remove and replace roof sheathing and framing would normally be based on the condition of the roof framing and sheathing not on the. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.

Below are a few ways to check for possible roof leaks. There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread. The presence of mold inside your home even if it s in an unused place such as the attic can cause. Roof leaks cause two types of mold growth.

Unfortunately by sealing the vents or tacking insulation to the underside of the roof we create ideal environment for attic mold to grow by keeping moist warm air trapped inside. Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. I ve seen 3 000 00 10 000 00 invoices for the attic black mold remediation process in approximately 1000 1200 square feet of attic area. In this case the moisture buildup is indirect the roof leak only affects a small area but the dampness in the air causes.

Systemic growth occurs when the roof leak causes enough moisture buildup in the attic to cause mold growth throughout the entire area. Mold growth in an attic comes as a consequence of excess moisture. If your roof leaks or any attic windows leak you ve got moisture in your attic and probably need to consider attic mold removal. Faulty roof insulation or construction can lead to leaks and a lack of proper ventilation can cause humidity to accumulate.

Systemic or limited growth. A few befits of the roof decking replacement over the other types of getting rid of mold procedures. Mold in attic is fairly common because attics are often damp. Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements.

Benefits of getting rid of mold in your attic by replacing the roof. In the vast majority of cases the mold growth is caused by condensation. Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring. Even if your roof and windows don t leak though humidity in the attic can lead to the growth of mold.

Rafters sheathing joists attic side of fascia boards etc.