Specifically, we at Allen Associates:

Avoid standard pressure treated lumber that can leach arsenic and chromium into the soil and groundwater, and can cause respiratory, skin and nervous system problems.

Use only low or zero VOC (volatile organic compounds) paints, particle board and construction adhesives for improved indoor-air-quality.

Install on-demand water heaters for both domestic hot water and space heating. These heaters consume about half the energy of a standard water heater but can supply an endless flow of hot water.

Use recycled content materials such and engineered wood products, plastic-wood fiber decking, and cementious-wood fiber siding that is resistant to termites, fire, and water.

Substitute flyash for cement in our concrete mixes for a stronger, more water resistant product. Flyash is a waste product from coal-fired power plants that normally goes into landfills.