Glossary


Impervious Surfaces

Surfaces that promote runoff of precipitation volumes instead of infiltration into the subsurface. The imperviousnessResistance to penetration by a liquid and is calculated as the percentage of area covered by a paving system that does not allow moisture to soak into the ground. or degree of runoff potential can be estimated for different surface materials.

Copyright 2013 – BuildingGreen, Inc.