What is foam glass gravel?
Foam glass gravel is a building material designed for a future where the built environment is not at odds with the natural environment. Both versatile and lightweight, foam glass gravel’s physical properties allow it to be a preferred material across the built environment. Not only is foam glass ultra lightweight (9.8 pounds per cubic foot), its closed-cell structure gives it thermal insulation of R1.7 per compacted inch. Foam glass can be used across a variety of construction verticals, from subslab insulation, to green roof fill, and infrastructure backfill.