Product: Passive Windows from Marvin

The company now offers a wide range of American-made wood windows that meet strict European and U.S. standards for Passive House certification. A range of design features—even large expanses of glass— are possible with the firm’s quad-glazing Heat Mirror technology. The units are offered by the company’s Signature Services department, which offers one-on-one design and manufacturing support for custom projects. marvin.com.