Hemp home in Ontario

I met Chris and Wil Dancey several years ago at a Timber Framers Guild conference at Asilomar, Calif. At that time they were building their nicely-proportioned hemp wall house. Since then it's been completed and here is Chris' description:
"Infill: The exterior walls are 11" think hemp and lime infill. The industrial hemp was grown and processed in SW Ontario. The hemp hurd, which is the woody core of the industrial hemp plant, is broken into small pieces and cleaned before packing into bags and sold as HempChips by Stemergy. We also did some of our interior walls with hemp and lime, but they are only 6' thick. Gabriel Gauthier of ArtCan helped with the hemp and lime infill.



Structure: The round log timber frame is made from locally harvested larch. Many of the round log roof rafters are red pine that my father and mother planted 70 years ago. They were supposed to be harvested for Christmas trees when they were young, but this didn't happen, so they have been used within our home. The upper roof is a reciprocal design that is topped by an octagonal dome that was made in Toronto, ON. We built the panels for the upper roof and the interior side has 9 local varieties of wood.  Above the skylight on the living roof you will see the remains of a dead tree. This tree snapped off in a wind storm and the post and beam structure for the front entrance has been built using the top of this tree. The rocks we used for the base were found onsite.
Rendering: The lime for the exterior plaster is from the Beachville quarry about an hour from us.
Windows: The wood frame windows are from Golden Windows in Kitchener, ON. The sills are Eramosa limestone from Ledgerock in Owen Sound, ON.
 Roof: The steel was probably from a manufacturer in Hamilton on Lake Ontario and the profile was created at an Amish company near our home."
More on the Danceys: http://nbnetwork.org/5629