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Old 09-14-2017, 11:12 AM   #1
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Water coming up under flooring after Hurricane Irma


Water has intruded under the laminate flooring in one of my spare bedrooms (Pic 1). The area is adjacent to an exterior wall and window.

I cannot find for certain the source of the leak, however I suspect it may be coming from the foundation. I dug outside against the adjacent wall and noticed the following crack ( Pic 2 ). The standing water is from a hose I used to clean the wall.

Does this look like it could be the source of the water intrusion? I did tear up a panel of laminate and the base board is rotted ( Pic 3). It was moist under the base board.

My other suspicion is it coming from the roof siding since I found some tiny gaps, however I used a moisture detector and no moisture was detected in the walls as it was all at ground level.
Looking for advice on the source of the leak and possible remedies. Thanks.
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Old 09-14-2017, 11:17 AM   #2
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Re: Water coming up under flooring after Hurricane Irma


Pic 1 https://imgur.com/a/jk0qi
Pic 2 https://imgur.com/a/6Ssgp
Pic 3 https://imgur.com/a/GyWwJ
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Old 09-14-2017, 11:21 AM   #3
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Re: Water coming up under flooring after Hurricane Irma


You will need to try the photos again as you have to have some posts before you are allowed to post them. It's a spam stopping thing.
If the ground water level outside was has high as the floor water could be coming from below. More than likely that is not the case.
So there could be a roof leak, a plumbing leak in the house, plumbing leak below the floor.
If your baseboards were wet and rotting then I suspect the bottom of the drywall is wet too. If it is it will have to be removed to above the wet area,
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Old 09-14-2017, 11:24 AM   #4
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Re: Water coming up under flooring after Hurricane Irma


I forgot windows.
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Old 09-14-2017, 12:27 PM   #5
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Re: Water coming up under flooring after Hurricane Irma


See my updated response for photos. The reason I believe it is coming from outside at ground level is because I think water was ponding there during the hurricane (lots of rain) and no moisture was detected in the walls (roof/siding leak should have some sort of moisture in the walls yes?).
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Old 09-14-2017, 12:52 PM   #6
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Re: Water coming up under flooring after Hurricane Irma


the baseboard would takes weeks or month to show signs of rot.
The water out side would have to have come with in 4" of floor level so that water might wick up thru the floor but it looks like more than wicking so you would have to have water up to the level of the floor.
All the wet floor and wet drywall have to go and then try to figure out where it is coming from. In the mean time mold is likely growing.
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Old 09-14-2017, 01:19 PM   #7
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Re: Water coming up under flooring after Hurricane Irma


The rotted baseboard is telling you that the problem preceded Irma, she just added more moisture.

When water runs down the inside of a wall it doesn't spend a lot of time there thus may not soak in to where you can test for it. I use an infrared camera which detects the temperature difference caused by any evaporation, extremely sensitive. You can rent those cameras.

Peel that underlayment back to see if it needs to dry out under there.

I agree with Neal, the likely source is from above but not certain. From what we are seeing it is just the tip of the rot and moisture damage. I've done a few repairs around doors and the owners were shocked to see the door in the front yard and a whole new frame being installed along with some studs and bottom plate in your case.

Outside pictures maybe? Can you access the attic in that area?

Bud
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Old 09-15-2017, 07:13 AM   #8
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Re: Water coming up under flooring after Hurricane Irma


Thank you Neal and Bud. What you are saying about it likely coming from above makes sense. I doubt Irma was the direct cause of this, just the first time I was able to observe it.

I have T1-11 siding above this area. It is warped (from forever ago) and I sealed the gaps caused by the warping months prior. I will try and get in the attic tonight to take pictures and see if anything is wrong.

Here are some pictures from the outside window and the siding above. The water intrusion is in-line with the window.

Note that the roof directly runs off towards the area of intrusion outside, which made me think ponding water was sitting against the interior wall and causing intrusion.

Pic 1
Pic 2
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Old 09-15-2017, 07:36 AM   #9
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Re: Water coming up under flooring after Hurricane Irma


I assume your house has a slab that is close to ground level ??
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Old 09-15-2017, 07:41 AM   #10
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Re: Water coming up under flooring after Hurricane Irma


Quote:
Originally Posted by mark sr View Post
I assume your house has a slab that is close to ground level ??
Yes, correct. No basement.
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Old 09-15-2017, 12:20 PM   #11
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Re: Water coming up under flooring after Hurricane Irma


Water can travel great distance before we see it. If this is a low spot in the slab it could even be coming across the floor under the flooring.
The siding looks good from what we can see, there should be house wrap behind that but if they didn't put the flashing behind the wrap, that could be a problem.
2 conduit going to or from attic could be leak spot.
I always suspect windows first. But you have plumbing under the slab too.
You might dig a hole outside in that area to make sure you haven't got water under that wants to come out.
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Old 09-15-2017, 05:15 PM   #12
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Re: Water coming up under flooring after Hurricane Irma


I sprayed my exterior window with a hose and sure enough water come out on the inside down the wall out where the baseboard is. How does this happen?

How would I go about isolating the exact area of intrusion in the window?
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Old 09-15-2017, 05:20 PM   #13
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Re: Water coming up under flooring after Hurricane Irma


That looks like it's block construction with stucco applied directly to the block, wood frame for the 2nd floor. The majority of fla homes are block, many with 1 coat of stucco applied directly to the bare block. Some are wood frame with plywood, tar paper, wire lath and 2-3 coats stucco ..... at least that is how they were built back in the 70s and 80s.
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Old 09-15-2017, 05:21 PM   #14
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Re: Water coming up under flooring after Hurricane Irma


Quote:
Originally Posted by chriskthx View Post
I sprayed my exterior window with a hose and sure enough water come out on the inside down the wall out where the baseboard is. How does this happen?

How would I go about isolating the exact area of intrusion in the window?
Check the caulking around the window.
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Old 09-15-2017, 05:50 PM   #15
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Re: Water coming up under flooring after Hurricane Irma


Quote:
Originally Posted by chriskthx View Post
I sprayed my exterior window with a hose and sure enough water come out on the inside down the wall out where the baseboard is. How does this happen?

How would I go about isolating the exact area of intrusion in the window?
Sometimes just caulking around the top and sides of the window and if it opens you would check and see how it seals or not.
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