Aggregate Surfacing

Recycled Glass Aggregates and Powders


Recycled Glass for Landscaping


Recycled Glass for Landscaping


Aggregate Surfacing

Recycled Rubber Mats, Playground Surfaces, and Delineator Bases


Stormwater: Rain Gardens and Drywells

Temporary Water Storage Helps Recharge Aquifers and Reduce Water Pollution

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Image Credits:

  1. Michael Chandler
  2. Lee Ann White/Fine Gardening #74
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Incorporate rocks and gravel into landscape designs

Improve drainage and reduce the need for soil and plants.
Using large rocks, gravel, and other natural elements in landscape designs can reduce the need to truck in topsoil and plant new vegetation. There are a variety of other benefits including reduced demand for irrigation and better drainage.

Learn more in the Green Building Encyclopedia

Landscape: Native Plants and Soil

Use porous asphalt or concrete

It looks like conventional paving but lets water through.
Porous asphalt is made by omitting the fine-grain sand used in standard asphalt mixes. While it looks a lot like conventional asphalt, spaces between the coarse aggregate allow rainwater to get through. Porous concrete, made with larger pea gravel and a lower water-to-cement ratio, is similar. Porous pavement has proven most effective where sand and salt aren't required to control ice and snow. Silt can block water passages.

Choose permeable driveway materials

Permeable surfaces reduce runoff, help recharge aquifers.
Once compacted, conventional gravel driveways are only marginally more permeable to water than asphalt. A porous pavingA paving material that allows rainfall to percolate through and infiltrate the ground, rather than contributing to stormwater runoff; can be asphalt, concrete, or porous grid paver. grid supports vehicles and prevents the gravel from compacting, much like turf-paving systems. Some gravel-paving products are made from recycled plastic. Precautions should be taken so runoff doesn't wash silt onto the gravel and clog the surface. Turf-paving systems, which consist of a plastic or concrete matrix and spaces for grass to grow, is a good choice for low-traffic parking areas.

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