Amish made hardwood

It is currently Tue Apr 23, 2019 9:59 pm

All times are UTC - 5 hours




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: Buckling floor due to moisture
PostPosted: Thu Nov 15, 2018 11:30 am 
Offline
New User

Joined: Thu Nov 15, 2018 11:05 am
Posts: 2
I have a customer who asked me to look at her buckling floor late this summer. I knew right away that it was a moisture issue under the house so I investigated. She had installed a central HVAC to years ago and our summers have been wetter than average. Based on my hydrometer readings the average moisture content of the joist is around 18%, but one beam is very high pegging out at or above 35%. I am trying to determine the best way to dry the space to begin necessary repairs to her framing and floor.

The house is over 100 year old and is pier and beam construction with the accessible crawlspace under the beams varying from 12" to 18". All of my previous experience and research says to use a 6mil or thicker vapor barrier on the ground and be sure that the grade is pushing water away from the house. The problems I'm having with this solution include: the grade of the yard and crawlspace are the even and there is little to no way to change that; the house is less than a mile from the Mississippi River and the ground water seepage often puddles in her yard and the surrounding lots; the soil content has a high level of clay; and a previous contractor put vinyl skirting around the base.

I'm concerned that using the plastic vapor barrier risks collecting water when there is severe seepage or heavy rainfall. Being a low pier and beam structure even taking the skirting off and adding a few fans is not creating enough airflow to dry the space. And almost all of the other builders I've discussed this with are equally puzzled on the best course of action due to the site specific issues. Any advice would be much appreciated.


Top
 Profile  
 

 Post subject: Re: Buckling floor due to moisture
PostPosted: Fri Nov 16, 2018 12:42 am 
Offline
Prized Contributor

Joined: Tue Jun 16, 2015 12:02 am
Posts: 1004
35% moisture content? This high reading means rot is going to happen!
Cover the dirt with 6 mil plastic sheet. This will allow the existing conditions to taper off. Even if periodic puddling occurs on top of the plastic most of the moisture will be sealed under it which will keep the sub area drier. This is a good first step to moisture mitigation.


Top
 Profile  
 
 Post subject: Re: Buckling floor due to moisture
PostPosted: Fri Nov 16, 2018 7:39 am 
Offline
Semi Newbie Contributor

Joined: Tue Nov 28, 2017 8:02 am
Posts: 96
Since you can't grade away the water, maybe consider installing a sump pump and basin. You could also go the encapsulated crawl space route whereby you seal everything off and install a dehumidifier to condition the air in the space. That's the more expensive route however. It really depends on how much excess water you are getting. We don't have a lot of crawlspace construction in Canada so this is just from my recollection, not experience. I'd consider contacting an expert in moisture mitigation, like a restoration company.


Top
 Profile  
 
 Post subject: Re: Buckling floor due to moisture
PostPosted: Fri Nov 16, 2018 12:23 pm 
Offline
Prized Contributor

Joined: Sat May 02, 2009 3:45 pm
Posts: 3309
Location: Tucson AZ
I'd think about installing gutters and french drains around the house to divert water away.

_________________
Stephen Perrera
Top Floor Installation Co.
Tucson, Arizona
Floor Repairs and Installation in Tucson, Az
http://www.tucsonazflooring.com


Top
 Profile  
 
 Post subject: Re: Buckling floor due to moisture
PostPosted: Sat Jan 12, 2019 6:45 pm 
Offline
New User

Joined: Sat Jan 12, 2019 6:34 pm
Posts: 1
8 mil black polyethylene plastic over the soil

Gutters/Drains to carry moisture away from the house.


Top
 Profile  
 
 Post subject: Re: Buckling floor due to moisture
PostPosted: Tue Jan 15, 2019 11:22 am 
Offline
New User

Joined: Thu Nov 15, 2018 11:05 am
Posts: 2
Pete A, there is already rot evident in the beam with the 35% moisture. As for the other advice of gutters and drainage I think that is the best solution, but at this point the project seems to have exceeded the scope of work I'm capable of managing with my small business so I am bringing a bigger contractor. I'll definitely keep updates as things are resolved.


Top
 Profile  
 
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group

phpBB SEO