Windows06

Energy-Efficient Openings

FACT:
If all residential windows in the United States were replaced with Energy Star–qualifying models, we’d save $7 billion in energy costs over the next 15 years.

FACT:
Dual-pane glass was first patented in 1865.

FACT:
Approximately 25% to 35% of the energy used in American buildings and homes is wasted because of inefficient windows and glass.

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GreenBuilder 11.2010