Glossary | U.S. Green Building Council
Please upgrade your browser. This site requires a newer version to work correctly. Read more

open-grid pavement system

pavements that consist of loose substrates supported by a grid of a more structurally sound grid or webbing. Pervious concrete and porous asphalt are not considered open grid as they are considered bounded materials. Unbounded, loose substrates do not transfer and store heat like bound and compacted materials do.