It’s pretty common to find that vinyl flooring is among the most desirable material when it comes to high traffic areas at home or at the workplace. Vinyl can also look beautiful and because of so many colors and patterns, with some even mimicking the look of stone, tile or wood. But what happens when greenish or grayish stains appear under a vinyl floor?
When grayish stains appear from the bottom up on a vinyl floor, it is most likely signaling that mold or mildew is present. As most people know, mold and mildew thrive in moist, dark places, so if they are present in the vinyl, it’s a sign that there is too much moisture in the substrate. This can come from an ineffective or non-existent moisture barrier or a leak from somewhere nearby. No matter what the source, it’s not good to have moisture trapped underneath the vinyl.
Unfortunately, installers can make several mistakes when putting in vinyl that can lead to mold and mildew growing. It’s important to do everything possible to make sure that the moisture in the room and in the substrate is under control before laying on the finished flooring.
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