FiberBacker underlayment installed under a tile floor.

MP Global Products’ FiberBacker is the first underlayment for ceramic and porcelain floors to earn Indoor Advantage Gold certification from Scientific Certification Systems. Indoor Advantage Gold is SCS’ highest level of certification and “the most stringent indoor air quality certification in the country,” according to MP Global.

Engineered to be odorless and free of VOCs and liquid adhesives, FiberBacker is approved for installation over 3/4” tongue-and-groove plywood or oriented strand board interior subfloors and over radiant heating for floors. An EPA registered anti-microbial additive inhibits mold growth and helps prevent dust-mite colonies from developing, MP Global noted.

FiberBacker is made using 100 percent pre-consumer recycled textiles. For more information, visit