Green manufacturers recognized

SustainableBusiness.com has released its annual list of the top 20 "sustainable" public companies, that is, "public companies that are leading the way to a sustainable society." Among the companies on the list are a number of building materials makers:

• Apogee, a leading manufacturer of efficient glass.
• Accsys Technology, the creator of technology that gives softwood trees the durability and quality of hardwoods.
• Interface, a maker of environmentally friendly carpet tiles.