Getting the most efficiency for the least cost requires careful attention throughout the design and construction process. Most energy-efficient homes have dozens of little improvements that individually add little to construction costs, yet together yield big savings.

Many energy features offer additional benefits such as increased comfort, reduced noise, greater fire safety, and improved building durability. Energy-efficient homes also have less condensation, which protects framing, windows, and finish materials. Better control of moisture and temperature means less movement of materials, which reduces floor squeaks and drywall cracks.