White Powder Under Carpet

Efflorescence is normally worn off or washed away on unsealed concrete surfaces.

White powder under carpet.

One cause of the white powder could be the deterioration of the carpet backing. Smelling mold in your home is another symptom of heavy mold growth. The stuff is powdery and uniformly white or light in color if that helps. Efflorescence is the white powdery substance on the surfaces of unsealed concrete and the white blush seen with sealed floors.

We use that once a week before we vacuum. On mine at least it s definitely latex from the backing that s bonded to the rug. I think it is just carpet freshener. Sometime vinyl and other materials break down and the result is a powder under the carpeting.

You shouldn t necessarily be concerned unless sections of your rugs pile or yarn are slowly surfacing. Efflorescence is caused by vapor migrating through the slab bringing soluble salts to the surface of the concrete. Hand tufted rugs are constructed from different parts that are glued together. The white powder of which appears underneath a tufted rug is actually dried up particles from the glue which had once held wool securely to the canvas or foundation of the rug.

I put the wet padding in a pile and. If you have white mold visibly growing on your carpet then you have heavy mold growth underneath the carpet on the padding. Heavy white mold growth on floor joists. In cool climates mold growth on floor joists is rare.

But when it occurs it s often white in color. Another cause could be alkaline salts coming up from the concrete slab underneath. A ph test evaluates this as well as by checking the moisture content of the slab itself. White mold is often found in two locations in a crawlspace exposed soil and the lower portions of the floor joists.

The white powder under your rug is latex and its powdery mess is a common occurrence with hand tufted rugs. When i pulled the carpet padding up i found a lot of a white powdery substance.