Attic sheathing and framing.
White stuff on wood in attic.
Some dark stains can be attributed to the natural oils or acids inherent in wood that are often brought to the surface by the heat inside the attic.
At attic mold what it looks like we.
Above we show white mold on wood subflooring and on osb subflooring in a wet crawl space.
The client will certainly expect an explanation for this white material on the roof rafters in the attic.
In the outdoor white mold is a common name of sclerotinia sclerotiorum a type of parasitic fungi that attack plants.
White fuzzy mold on plants.
White mold in attics.
On wood there are three basic fungi.
115 year old trim and refinished 50 years ago but looks brand.
Reader comments q a.
White mold tends to grow in high humidity environments rather than areas suffering from total saturation.
He finished the attic installed skylights insulated the roof deck properly put in it s own air handler etc.
He had every square inch of original woodwork refinished quarter sawn oak and couldn t tell me what the finish is but remembers that it won t yellow or darken with age.
The white powder that you have shown i have seen on many of my inspections i received some feed back from a mold specialist that indicated to me that it was a type of mold that had dried up and offered no harm as long as it was not present in the living areas.
The vast majority of attic mold is caused by humidity which is why white mold growth is common here.
If wood takes on a whitish or light yellow shade and feels spongy it s probably white rot.
Below we show additional photos of white and light colored molds found in buildings.
Attics contain plenty of food sources for mold including wood and insulation.
Stain fungi is an aesthetic problem decay fungi damages the wood and mold fungi can be cleaned or removed.
But when i would write this up i would indicate suspect mold and it would have to be tested.
The appearance of white mold on wood can reduce the aesthetic and spread health risk.
On 2019 10 09 mod what is this white moldy stuff in my attic.
Decay fungi stain fungi and mold fungi.
And clean the area.
This mold has been known to.
After all some mold shows up as a white powdery material but more often in a crawl space than an attic.
The insulation was contaminated and we inspected the attic side of the ceiling drywall below for signs of leak stains or mold.
As such roof leaks from rainfall or melting snow condensation resulting from temperature fluctuations and or leaky pipes can give mold the moisture it needs to thrive in attics.
Bill that could indeed be and looks like a white fungus or mold growth on roof sheathing.
I m hesitant to let the white stuff breathe out in the air without knowing for sure what it is.
Wood is one of white mold s favorite habitats just like its outdoor counterpart.
