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.

Many of us think the opposite and seal all of the attic vents or even insulate the roof decking assuming it will lower our heating bill. Below are a few ways to check for possible roof leaks. In this case the moisture buildup is indirect the roof leak only affects a small area but the dampness in the air causes. Mold growth in an attic comes as a consequence of excess moisture.

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. Systemic growth occurs when the roof leak causes enough moisture buildup in the attic to cause mold growth throughout the entire area. Mold in attic is fairly common because attics are often damp. Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring.

Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored. A few befits of the roof decking replacement over the other types of getting rid of mold procedures. The presence of mold inside your home even if it s in an unused place such as the attic can cause. If your roof leaks or any attic windows leak you ve got moisture in your attic and probably need to consider attic mold removal.

Systemic or limited growth. What does attic mold growth from a roof leak typically look like. Even if your roof and windows don t leak though humidity in the attic can lead to the growth of mold. Check for areas of dark discoloration staining of wood e g.

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. Roof leaks cause two types of mold growth. 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. Faulty roof insulation or construction can lead to leaks and a lack of proper ventilation can cause humidity to accumulate.

This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate. In the vast majority of cases the mold growth is caused by condensation. Benefits of getting rid of mold in your attic by replacing the roof. Rafters sheathing joists attic side of fascia boards etc.

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.