Old hardwoods with high moisture levels

950 Views | 3 Replies | Last: 3 mo ago by 500,000ags
500,000ags
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AG
I have a section of original hardwoods, and there is subfloor and hardwoods. No moisture barrier at all. House is about 3 ft off the ground in this section.

Today, we noticed the floors under the rug were becoming uneven, we pick up the rug and there is 2 areas of noticeable mold growth on the rug. We do some googling and realize that the Ruggable pads do cause this issue for people with crawl spaces and original floors in humid locations since the pads don't breath well.

We call a neighborhood guy that works as a manger of a water remediation crew. He's going to get it removed and treated on top and under the house with professional microbial spray.

He tested the moisture levels of the floor section in question and it has really high readings. Not really surprising. He goes to my new hardwoods (2 levels of moisture barrier) and gets an intermediate reading, goes to another room with the originals and also gets a high reading. That floor has had a normal rug on top and we check for mold growth and there is nothing.

I checked the house perimeter in these sections and it doesn't seem like any water would be falling towards the home while raining. But, I will be adding more grade to the perimeter just in case.

Anyone have experience with a similar situation?
tgivaughn
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AG
Indeed a promient Aggieland client in the day insisted upon a crawl space (with a history of not venting the previous one seasonally that lead to floor problems) under their hardwood floors coming from Houston. Even with a SOP moisture barrier, this was not enough to produce the moisture environment required, so was $$$ upgraded and thus the Houston installers spent more time than figured.

The upgrades to this barrier below & what other mitigations made - as well as many others - would be best served up by the vast experiences at Clouse Beautiful Wood Floors
Gotta draw since me got no grammar MasterArch '76
Tango.Mike
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Your HVAC/house could be drawing moisture up through the floor if your crawl space is open. Before you go nuts encapsulating the crawl space or installing a vapor / moisture barrier under the floor, you could try a radon fan. You won't need to get it certified, and they're only like $200
500,000ags
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AG
Just wanted to circle back that we removed the rug and have been running a dehumidifier in the room. The floors are settling down.

Just a reminder that using a Ruggable-branded rug doesn't mix well with old pier and beam homes with original flooring.
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