Mold elimination process, what I missed?


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Old 10-10-21, 04:24 PM
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Mold elimination process, what I missed?

Hello, I just found out my dishwasher drain or pump was leaking and I can see subfloor water stain from basement with a few mold spot. I have removed the floors with the paper layer underneath the hard wood floor. It seems to me that is the edge of the water damage. Then I sprayed the subfloor(polywood) with Concrobium. I will let it completely dry first then will follow the Concrobium instruction for next step. I think will be mop it with wet cloth. Based on the position of the water damage, I would think I will need to cut a piece of the bottom board of the cabinet to see if any mold there. Anything I am missing here? Any insight is highly appreciated. Thanks!






 

Last edited by PJmax; 10-10-21 at 04:36 PM. Reason: reoriented/enhanced pics
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Old 10-11-21, 12:07 AM
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If I were to that point I might consider removing the sub flooring, how difficult to get that cabinet out?
 
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Old 10-11-21, 03:48 AM
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I am not sure. The cabinet has sink in it and it also has water supply with the the drain. It maybe difficult to remove but not impossible. The position of the sub flooring made it harder to use a circular saw to remove at the corner and edge. Is the spray treatment not enough?
 
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Old 10-11-21, 04:39 AM
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To do the job right I would remove the cabinets. You can see the water damage extending beyond the sink cabinet with no sign that it stops there. Just keep removing until you can get out all the water damaged wood. Hopefully the framing underneath is OK.
 
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Old 10-11-21, 05:25 AM
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Is the spray treatment not enough?
That really is a mess and you have to figure it's soaked somewhat into the wood, not just the surface.

​​​​​​​What does it look like from the basement?
 
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Old 10-11-21, 08:53 AM
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Thanks guys. Photos from the basement, and the results after drying overnight. Some photos has a darker color as I used flashlight. I think it may still need a couple of days to fully dry. If to remove cabinets, do I need to remove both sides? Also this is our kitchen, so is it safe to cook here while waiting the floor to dry?








 
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Old 10-11-21, 11:35 AM
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"...do I need to remove both sides?"
Yes and no. Yes, because you need to inspect the damage underneath the cabinet and get some airflow so the OSB can dry. No, because it's a big job and the OSB might not be damaged. Complicating things is the longer it takes to dry out the greater the chance of damage.

One option is to cut some holes in the cabinet sides near the bottom. This would allow you to see what's going on underneath those cabinets and will allow you to blow air in to dry out that area. If the OSB is solid and not swollen I would not remove the cabinets.
 
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Old 10-11-21, 07:49 PM
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I removed part of the bottom board of cabinet on the left and drilled 2 holes of the cabinet on the right. There is vinyl floor underneath. Both side look dry and the wood sound solid. Based on what I see under the dishwasher. The vinyl floor is on top of plywood and plywood is on top of OSB. It seems the previous owner redid the floor but left the original cabinet. The vinyl is glued on the plywood. I tried to cut and peel a piece off but unsuccessful. So would be safe to say it is okay to not remove the cabinet? Photos attached.





 
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Old 10-12-21, 04:36 AM
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Oooh, that's a shame that there is vinyl under the cabinets. That trapped the water and allowed it to travel further. It also prevents the wood underneath from drying out.
 
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Old 10-12-21, 05:48 AM
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It is indeed unfortunate to be forced to do a costly (both time and money) kitchen tear out when you had not planned for it. Look at it like a car accident. No one plans or welcomes one, but when it happens you deal with it. Either repair the car or replace it. Same with this water/mold issue. Remove the countertop and cabinets and properly repair the floor. Anything less will quite possibly get worse and cost more if delayed.
 
 

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