The first mold problems I became aware of, and involved in, were associated with the vinyl flooring segment of our business. These mold problems began to crop up shortly after manufacturers removed asbestos from their sheet vinyl products.
Certain vinyl floors began showing discolorations that ranged from pink to purple to black. Some of these discolorations were the result of certain gypsum patch formulations - some contained material that, when exposed to moisture, supported mold growth. Other discolorations were caused by the vinyl adhesives.