Basement homeowners today are looking to expand the usable space in their home. Basements have become an economical alternative to home additions but must incorporate flooring materials that meet the challenge of below-ground environments. Two major concerns unique to basements that require homeowners to carefully choose how they will finish their basement space are mold and mildew. Basements typically are damp, humid, and dusty environments. The floor makes up over 40% of the surface space that generates moisture in a basement. Traditional flooring materials such as carpet, vinyl, or laminate can harbor mold, mildew and other allergens that pose serious health risks.