While there are already a lot of ways to save energy and money by retrofitting your home with new windows, weather stripping, and insulation; wouldn't it be cool if you could do even more, just by using a different kind of building material? Well, now you can–or, at least you'll be able to soon–as a result of a new tech breakthrough in energy efficient building materials pioneered by researchers at Purdue University. Listen now to our conversation with Purdue University Assistant Civil Engineering Professor, Dr. Mirian Velay-Lizancos.