Canada and the USA: differences in the energy efficient housing scene.

Describes elements of the 'Building America' initiative, a federally sponsored initiative that has as its goal to persuade production builders (100 plus homes a year) to build more energy efficient and durable homes. Some 'volume builders' in America build more than 20,000 homes a year. It is difficult to persuade buyers to invest in energy efficient homes. Many mechanical contractors fit two furnaces in unconditioned space, because duct runs are easier to install.

Virginia builder reaps success with healthy houses.