Belgard Environmental driveway pavers dramatically reduce rainwater runoff, says the manufacturer. Spacer bars separate adjoining stones so that joints can be filled with pervious aggregate. The concrete pavers are sold in three styles and last for 50 years, the company says. Material prices start at $2 per square foot. Oldcastle Architectural Product Group, 877/235-4273, belgard.biz
Permeable Pavers
