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jkirk
Re: Concrete slab snd carpeting.

where is this slab in regards to the house, is it in the basement or does your home have an overpour on the main level

with the first generation of pex piping (different name which eludes me right now) from 15 years ago or so this stuff would slowly develop holes and leak which has been well noted within the industry thus the switch over to pex. another possibility is that the pex itself is leaking, theres a chance the pex has degraded because of certain additives reacting with the plastic pipe.

the only way of knowing is to take up the old carpet and check the slab, this could entail chipping up sections of the slab to get at bad pipes

gfann18
Re: Concrete slab snd carpeting.

The slab is located on grade level there is no basement the house is built on the slab, single story house. The foundation/slab is noticable lumpy in curtain areas. The house was built in 1991. The pipe that is used in the floor is gray (possible) plastic or pvc, not sure but the pipes are flexible if that helps identify the type at all. Thanks for the input.
If the floor is leaking and needs repair, if I were to discontinue the use of the radiate heat flooring and install a wood burner or electric base board hearters would that be cheaper then fixing it? Any thoughts on that (?)

jkirk
Re: Concrete slab snd carpeting.

normall there is one large pipe pvc which just comes out of the concrete to protect the smaller pipe from getting damaged at this point then the indidual lines spread out to create the coils from there

since its at grade there could also be soil problems when it comes to the moisture, its possible that the builder didnt put down foam and a layer of plastic before the concrete was placed which is now wicking up ground water which may be what your seeing

gfann18
Re: Concrete slab snd carpeting.

I cant really tell if there is foam and plastic under the slab the foundation is surrounded by concrete blocks. Could you elaberate on "wicking" if there is moisture coming up through the floor what might be the fix. My feeling is that it is moisture or mold. If i put something over the floor to vent moisture out would that work? If there is such a product.

jkirk
Re: Concrete slab snd carpeting.

if there isnt a capillary break between the ground and the concrete slab meaning a layer of plastic, any water in the ground directly beneath the concrete can get drawn up through the concrete as its a porous product which can create moisture problems in the basement. if the case does mean there is no plastic below the only solution is to seal the concrete before the new finished flooring goes down or to put down plastic before the new flooring goes down, and have a dehumidifier running at all times..

canuk
Re: Concrete slab snd carpeting.

If you are pulling up the carpet anyway this will determine what the stains are and likely revel what the cause is.

jkirk
Re: Concrete slab snd carpeting.

canuk pee... maybe he was the previous owner and would pass out in the basement

canuk
Re: Concrete slab snd carpeting.

Hey now settle down or if it's off to the corner with you :p
Besides-- I don't pass out --- much:D

gfann18
Re: Concrete slab snd carpeting.

one last question before this thread goes way off in left field. There are some cracks in the concrete slab is that a normal thing or is it a indication of future problems? Can I level it off with more concrete or will the cracks makes problems for the new concrete? I just don't want to lay new floor and have to tear it up in a few months or even years.

jkirk
Re: Concrete slab snd carpeting.

depends on the size of the cracks, if their small ones less than 1/4" wide thats nothing, its natural for slabs to crack, now if their very wide and pieces are flaking up then you have problems

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