I don t know how they got there.
Dark spots under vinyl flooring.
Besides the old vinyl will make a great underlayment.
Sometimes a leaking toilet can damage floor coverings and underflooring without creating any obvious signs.
The only thing to do is take it up find the leak and get rid of mildew before putting new floor down.
Sheet vinyl floor discoloration can develop from above the product surface below the product surface or within the product itself.
How to remove moisture from underneath vinyl flooring.
Vinyl flooring can either be glued to the subfloor or it can float on top of it and either way moisture underneath it causes problems.
Vinyl floor discoloration is a more common occurrence than one might think.
Vinyl floors and adhesive issues.
Discolored vinyl flooring near or under a toilet is unsightly but it can also indicate a problem such as a leaking toilet.
With lighter colored material vinyl floor discoloration from both above and below are common.
Mold can grow anywhere that moisture has gotten.
Why vinyl floor discoloration.
Nothing was dropped on it and it seems to be under the first layer of the vinyl floor.
I live by myself.
Mold and mildew grow easily in moist spaces so under vinyl flooring and baseboards is ideal.
My house is 4 1 2 years old and has two bathrooms both with linoleum floors on the concrete slab.
In one bathroom not long after we moved in we noticed a slightly darkening area below the shower door on the floor.
Otherwise the second option is quicker and easier.
Hello my vinyl flooring is turning black near my toilet i kind of did the jump test to see if water was leaking and making the floor soft but it is hard and we looked from below we have no.
This same thing happened to me in my kitchen.
Not all leaking fixtures leave puddles on the floor.
One morning i got up and noticed that there are black spots in different areas of my vinyl floor.
It is not cleanable.
If it s coming loose tear it out and start over.
Vinyl floors and mold or mildew.
Bottom up staining has become less common over the last 10 years because adhesive formulas have improved.
I had light blue and cream vinyl i discovered a slow leak and it was going under the vinyl little by little until it started turning dark with mildew.
The stain won t come up through the old vinyl and discolor the new floor.
Growing in moist areas and causing a multitude of health problems mold can be a serious problem.
Now the same thing is happening in the other bathroom around the base of the toilet.