As a proven natural building material, glass block can add beauty and inspiration to a project, while playing a significant role in sustainable design. Glass block is 100% recyclable, low- maintenance, and highly durable, yet its’ dynamic relationship with light provides architects the opportunity to create both aesthetically pleasing and energy efficient spaces. With low construction waste, glass block is considered an environmentally preferable product, made largely from sand, an abundant raw material, and limestone. Because of its versatility, it can be used in a wide variety of projects, and offers a universal appeal.