Fixing pet urine on subflooring

GentleGiant

I bought my 1st house and we ripped out the carpet (the house was a Fannie Mae and the carpet was replaced to sell it) to put in the Trafficmaster Allure planking.
The sub floor has numerous smellable pet urine stains - what is the best way to fix this before putting the vinyl down?

I was thinking sanding it and then sealing it with some kind of wood treatment

rusty baker

We always masked the odor with Kilz or shellac, but I hear good things about enzyme cleaners that neutralize the odor. If true, that would be better over the long haul.

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hoz49

Both methods were recently covered here:

Urine Smell

epson

You can use shellac to seal the urine stain. Apply four coats and let dry between coats.

racebum

soak microban or urine pre treat in before you seal it. prevents heebies from growing

momof2labs

I thought I've heard of everything. But... what is a heebie? Is it like a kootie?

DangerMouse

Perhaps he meant Heeber?

"When the Heeber, Squat and Frobbing,
Bends it's Peeber on the Knobbing,
Let no Wensel Make a Maisy,
For the Morning Dew is Lazy."

DM

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Sellwithnic

Improved chemical in Toronto has an enzyme used in hospitals and nursing homes which digests the bacteria. Google them

Floor Doc

microban stops mold and mildew .

DangerMouse

FOUR coats? Isn't that a wee bit of overkill? lol

DM

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Daniel Holzman

I had a coworker who purchased a house in Delaware that he knew had a history of cat urination. Of course he got it for a very low price. He called it his cat house. He tried enzymes, shellac, bleach, damn near every product known to man, and was unable to remove the smell.

He ended up removing all of the subfloor, some of the studs, and I believe one or two joists. Must have been some very active cats.

Definitely try the enzymes, but if you had cats, be prepared for the possibility that you may have to remove some subfloor.

Floor Doc

Years ago i had to sell a one year old car that the cat went in on his way to the vet .and i was in the business.
Kiltz is perty good stuff . I would try that first.

epson

Keeps the smell out and the wife happy