Foam is an incredible thermal insulator. For the price and size, it's about the best insulation material you can get. But many people are concerned about the chemicals and process used to manufacture polystyrene.

I spoke with Curtis VanDyke from RL Adams Plastics about what they're doing to make foam 'green' and therefore make it an even greater building material.

http://homestylegreen.com/143
http://www.goadams.com/

Bamboo Technologies, LLC (Bamboo Living) design and manufacture structurally certified bamboo homes. Founded in 1995, Bamboo Technologies has produced over 350 homes in Hawaii and around the world. I spoke with founder David Sands about why bamboo is sustainable as a building material.

http://homestylegreen.com/142
http://www.bambooliving.com/