Straw bale wrap, straw bale addition, super energy efficient


We converted this leaky and poorly insulated 60's home in Lake of Bays, Muskoka, to a quiet, comfortable year-round family haven through a combination of straw bale wrap, dense pack cellulose an additional exterior wall and straw bale insulated addition. We modeled the home in the Passive House software, PHPP, to help us maximize our energy savings. 

We used FSC lumber and No Added Urea Formaldehyde sheets, zero VOC eco-friendly adhesives, finishes and sealants. The house features a wood fired boiler which also heats domestic water and water for space heating. A solar hot water heater was also installed for hot water and supplement radiant heating. Insulation included denim batt and cellulose. Perlite was used for under slab basement insulation and to insulate block walls. 

The interior walls are finished with a clay based earth plaster. The exterior walls are finished with a clay-based plaster with lime stabilization. 

Architect: Stone’s Throw Design

Bedroom with earth plaster walls, rounded corners around windows, wood floor.
Living room with wood floor, ceiling and walls.
Room with wood floor, plaster walls wood ceiling, wood heater.

For more images of this project (by Riley Snelling) see here