In the vast majority of cases the mold growth is caused by condensation.
White mold in attic roof.
This is why it s less common to see mold growth on base trim after a flooding event.
The photo at page top shows white attic mold on the roof sheathing and rafters and some brown or black mold on the attic side of ceiling drywall where we pulled back insulation.
With that said we ve learned quite a bit about white mold in our many years of mold inspection and removal.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Mold growth in an attic comes as a consequence of excess moisture.
Is it dangerous how to remove it.
Below are a few ways to check for possible roof leaks.
Attic sheathing and framing.
Rafters sheathing joists attic side of fascia boards etc.
Check for areas of dark discoloration staining of wood e g.
If there is a leak in the roof plumbing or windows the mold will reappear if the water is.
The vast majority of attic mold is caused by humidity which is why white mold growth is common here.
Prevent future mold growth.
In the attic photograph at left we show a mix of green gray and white attic mold.
Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring.
White mold is lesser known but still an incredibly dangerous species of mold to deal with.
In short you ll need to address the issue again and again which is a great frustration.
If one encapsulates attic mold with a clear sealant like many mold remediation companies do future home inspectors and homeowners won t have any idea if the visible black white mold staining in the attic is current or historic.
To prevent future mold growth remove the source of moisture causing it.
Attic mold cleaner attic mold removal how to clean attic mold how attic mold gets there in the first place and what to do to help prevent attic mold.
If you re ever unsure of what type you have calling in certified professionals to perform mold testing services immediately is important.
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.