Gypcrete.

The lightweight, self-leveling floor underlayment made from gypsum plaster, Portland cement, and sand. Used to create a high-performance fire barrier and minimizes sound transmission between floors.

Interior of a house under construction with exposed wooden framing, electrical wiring, a window with protective coverings, and a freshly poured, shiny concrete floor.

Interior view of a house under construction with exposed wooden framing, electrical wiring, and a freshly painted concrete floor.

Interior of a house under construction with a freshly poured concrete floor and exposed wooden framing.

Interior view of a house under construction with a freshly poured concrete floor, open wooden wall studs, and large windows letting in natural light.