The 2011 Greenbuild Conference & Expo kicks off this week in Toronto and as in years past, manufacturers will showcase a range of sustainable selections for both commercial and residential projects. Click on the slide show to see nine of the most interesting introductions for homes, including recycled slate-look roofing and an ultra-water-efficient toilet.

Editor's Note: Check back next week for on-site coverage of educational sessions, events, and new products from the show.