Energy Star Appliances - ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices.
Results are already adding up. Americans, with the help of ENERGY STAR, saved enough energy in 2007 alone to avoid greenhouse gas emissions equivalent to those from 27 million cars — all while saving $16 billion on their utility bills. Read more.

HardiPlank™ Siding - Hardie fiber cement siding gives you a beautiful home that is also safe from environmental and accidental wear and tear, with a choice of up to 26 baked-on colors via our ColorPlus® Collection. James Hardie fiber cement siding is designed to last a lifetime, resisting cracking, rotting, hail damage, termites and many other possible problems. Read more.

GeoThermal Heating - A geothermal heat pump system is a heating and/or an air conditioning system that uses the Earth's ability to store heat in the ground and water thermal masses. These systems operate based on the stability of underground temperatures; the ground a few feet below surface has a very stable temperature throughout the year, depending upon location's annual climate. A geothermal heat pump uses that available heat in the winter and puts heat back into the ground in the summer. A geothermal system differs from a conventional furnace or boiler by its ability to transfer heat versus the standard method of producing heat. Read more.

Insulated Concrete Forms - Insulating Concrete Forms (ICFs) give you all the benefits that have made concrete the material of choice for home building worldwide: Solid, lasting construction that resists the ravages of fire, wind, and Father Time. But ICFs do plain concrete one better - or rather, two better - by giving you two built-in layers of foam insulation. Read more.

Low Emissivity Windows - Low-emissivity (Low-E) glass has a thin coating, often of metal, on the glass within its airspace that reflects thermal radiation or inhibits its emission reducing heat transfer through the glass. A basic low-e coating allows solar radiation to pass through into a room. Thus, the coating helps to reduce heat loss but allows the room to be warmed by any sunshine. The low-e coating is usually on the inside pane of glass; if solar control is required then the outside pane of glass would have either a film or a body tint to reflect or absorb solar radiation. The principle of operation is similar to the greenhouse effect in which short wavelength radiation is transmitted through the pane, but longer wavelength radiation is absorbed. However, low-e glass reflects the radiation rather than absorbing it, improving performance compared to the glass in a simple greenhouse. Read more.

Structured Insulated Planks - Structural insulated panels (SIPs) are high performance building panels used in floors, walls, and roofs for residential and light commercial buildings. The panels are typically made by sandwiching a core of rigid foam plasInsulated Concrete Forms - Insulating Concrete Forms (ICFs) give you all the benefits that have made concrete the material of choice for home building worldwide: Solid, lasting construction that resists the ravages of fire, wind, and Father Time. But ICFs do plain concrete one better - or rather, two better - by giving you two built-in layers of foam insulation. Read more.
Green Features Glossary