To prevent future mold growth remove the source of moisture causing it.
Mold killer underside of roof.
Mold that grows on the underside of roof sheathing due to ideal mold growth conditions being present.
Everything looks freshly cleaned and painted when done.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
Maybe will try aanda2 s stuff but think the clorox may be less.
In fact attic mold can be more dangerous that other molds because it goes unnoticed for so long.
I tried white vinegar but it didn t work for me as well as the bleach.
Rigid foam on top of the sheathing or spray foam fiberglass on the underside.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Move outdoor furniture out of the way especially cushions rugs etc.
This is achieved by installing insulation directly to the roof sheathing i e.
This allows it to penetrate into walls the hvac system ductwork and more by the time most people realize they have a mold problem in the attic their entire house is compromised with high levels of air born mold.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
Clean your roof every few years.
In regards to health concerns attic mold growth will generally not affect the indoor air quality.
Wear clothing that are your work clothes.
Is attic mold dangerous.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Following the initial cleaning give your roof a checkup every six to eight months to see what kind of shape it s in.
Prevent future mold growth.
The presence of mold in your attic is often the result of poor ventilation insufficient insulation moisture from a roof leak or improper venting from your bathrooms or kitchen.
This can be a problem for many homeowners and needs to be addressed as soon as it is found to avoid the consequences it can bring.
Mold on the underside of roof sheathing is also very common.
Mold remediation roof mold repair.
If there is a leak in the roof plumbing or windows the mold will reappear if the water is.
In the vast majority of cases the mold growth is caused by condensation.
Periodic treatments will prevent mold and other gunk from moving right back in.
Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.
Repeat the process as often as needed to fend off fresh growth.
Mold growth provided it is not just cosmetic mold which can simply be left alone can be cleaned from wood surfaces by blasting scrubbing or even simple surface wiping depending on the surface accessibility and smoothness.