White fungus growing on crawl space wood
Unexpected fungal growth or mycelium in a crawl space or basement points to moisture issues that cause wood rot and compromise structural integrity. Discovering rotted sections of structural wood like band boards requires immediate assessment and repair to prevent further damage.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1scraping it off the surface
- 2buying a moisture meter
- 3putting a dehumidifier down there
- 4having a professional come and assess the full situation
- 5Using temporary wood supports and jacks to hold up the structure until it can be professionally evaluated
- 6removing the caulking
- 7pulling the piece of trim off to check the extent of the rot
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“Went down into my crawl space today and noticed white stuff everywhere that wasn't there before.”source ↗
“I noticed some mushrooms were growing in between the door frame this morning. I've never seen this happen before anytime I've been here.”source ↗
“I was replacing the trim in the back of my house from water damage wood rot, and I noticed that the band board is water rotted about a 2 to 3 foot section”source ↗
“damp wood and mushrooms means rot already set in man. that dark frame against the brick is a classic spot for water to sneak in especially with the humidity lately.”source ↗
Where this came up
People with this problem also raised
- 7How to clean mold on furniture after rain gets inside
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- 7Is the black stuff in my air conditioner mold or dust?
- 6How to clean mold on drywall or know when to cut it out
- 8Unexplained holes or damage inside the house
- 2Is rust under the car hood something to worry about?