Architect Michael Cobb uses sustainable materials like straw bales and rammed earth in the construction of this weekend home in Healdsburg, California.  Photo 8 of 9 in 9 Eco-Friendly Homes With Smart, Sustainable Features

9 Eco-Friendly Homes With Smart, Sustainable Features

8 of 9

Architect Michael Cobb used sustainable materials like straw bales and rammed earth in the construction of this weekend home in Healdsburg, California.