Cat urine subfloor

[KTurner]

Long story short, years ago there were cats in this house that liked to pee on/around registers. I just finished removing 20 or so year old carpet from a bedroom. The subfloor is stained with cat urine around the two floor registers. Hasn't been a cat in the house for a decade but the room still stinks (especially after stirring up that 20yr old carpet). Of course, these are right near the wall. If the stains were in the middle of the room, that'd be too easy, yank that sheet of subflooring and replace it. Any suggestions from voices of experience? I've been looking online and Kilz seems popular, after some sort of cleaning. What about the possibility that stuff soaked under the wall? How to deal with that?

Thanks
Keith

 

[jerrybob]

This works.....had a house years ago with cat urine on hardwood floor in a bedroom.....good luck.....

How to Get Rid of the Smell of Cat Urine on Wood - Yahoo! Voices - voices.yahoo.com

 

[bdeboer]

First I would remove the base molding the against the wall and inspect the drywall. If the drywall look like it has been wet cut out the bad as drywall is cheap.

Then I would use a multimaster tool (or knockoff brand) and cut the subfloor against the drywall. Next cut the rest of rectangle out with a circular saw set to the depth of the subfloor and replace with new. You may want to sister some 2x4's to the joists and the outer band board to catch the edges.

Apple cider vinegar and spraying with a bleach solution help, and then sealing with Kilz. Baby powder also has enzymes in it that help cut the smell. I always swear I can smell the pee when I enter a couple or rentals after they've locked pets in a room.

 

[EddieWalker]

I've always been disappointed with Kilz. Seems those who like it just assume it's as good as it gets and they deal with how poor it performs. I've never seen an ad for it or anything trying to sell it, but it's name recognition and popularity are why most people buy it. Right next to it on every shelf that I've ever seen selling Kilz is Zinsser. There are several types of Zinsser primer depending on what you are wanting to do. I use the 123 for just about everything. It's amazing stuff!!! For odors and urine soaked areas, I buy the BIN, which is their oil based primer. It's terrible stuff to work with. Very strong smell, extremely sticky and messy, but the results are worth the hassle of dealing with it.

Remove everything you can and then soak it with the Zinsser BIN primer. You will never get rid of the urine, but you can seal it up and block the odor.

Good luck,
Eddie

 

[Midniteoyl]

Thats cause most of the Kilz bought now is the crap 'latex' stuff.. the Original Kilz was much like the BIN, but alcohol based if I remember.



But, I agree - lightly sand, then coat with a sealer. more than one coat may be needed. Do NOT forget the edges and even the underside of the wood (use a small roller)

 

[MotorSeven]

Like Eddie said...good luck. We have bought a few doublewides, rehabbed them and flipped them. Walked into one that was a foreclosure, it was only 3 years old and really nice on a couple ac. One whiff and we walked out, got in the truck and drove off. It was all carpet and they must have had 20 cats using it as a litter box....I would not have taken that place if they gave it to me.

 

[dmccarty]

We used Nature's Miracle for years to clean up after the dogs and kids. It works. We have also used vinegar but Nature's Miracle seemed to work better. We used to buy it by the gallon. Unfortunately we needed to buy it by the gallon. :shocked::laughing::laughing::laughing:

Later,
Dan

 

[drg1]

Just had the same thing, remove carpet/ pad,remove all tack strips, spray bleach on effected area and let soak in for a day....cover floor with cheap latex paint ( color ur choice ),,, let's first coat dry, re-apply second coat and let dry....we put a fan in the room with window slightly opened (door closed) to keep ventilation going...after about 2 days all appears good....if baseboards are involved, only option is repainting them or replacement..once the wood is sealed no more odor

 

[deerefan]

Just had the same thing, remove carpet/ pad,remove all tack strips, spray bleach on effected area and let soak in for a day....cover floor with cheap latex paint ( color ur choice ),,, let's first coat dry, re-apply second coat and let dry....we put a fan in the room with window slightly opened (door closed) to keep ventilation going...after about 2 days all appears good....if baseboards are involved, only option is repainting them or replacement..once the wood is sealed no more odor

Please be careful with bleach. Cat urine + bleach= toxic (think mustard gas).

 

[drg1]

Please be careful with bleach. Cat urine + bleach= toxic (think mustard gas).

I guess I left out watered down ,good catch thanks