The problems of indoor air quality arose after the energy crisis of the 1970's and the drive for energy-efficient buildings.

Innovative technical details make the building energy-efficient and well-suited for the surrounding urban environment.

In an energy-efficient building, each face has a separate responsibility, depending on how much sun and wind it gets.

An energy-efficient building was the result, designed to prevent many of the little problems that seem to creep into a normal building.

The architects sought to design a flexible, energy-efficient building that would accommodate both the expanded staff and the new technology of the modern Senate.

Two years later, the city set a range of "best practices"' for energy-efficient buildings.

The energy-efficient buildings will open up to landscaped roof, garden and podium.

Solutions for energy-efficient buildings that avoid condensation are a current topic of architecture.

If we want builders who can construct energy-efficient buildings, we need to train them.

Modern concrete wall systems use both external insulation and thermal mass to create an energy-efficient building.