1950s Home Retrofit to Super Efficient Passive House - Urban Green Building

This 1950s Montreal house was retrofitted to become a super efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior. Maison Ozalée's builder, Richard Price from Construction Le Tournesol, also used triple glazed windows with insulated frames, and strategically placed small windows on the north side of the building to reduce heat loss, and placed large windows on the south side to take advantage of solar gain, which helps heat the house in winter. In order to avoid overheating the house in the summer, there are built-in shading elements above the large south-facing windows.

The home is airtight, with plywood sheathing to solidify the older home doubling as a vapour barrier once all the seams were taped.

Because of the energy gained from passive solar, and because it's airtight, this home only needs approximately 10% of the energy a typical home of the same size would need to heat during the winter.

The owners are very environmentally conscious and added additional features to their home to make it sustainable not just in terms of energy, but water as well. They installed a rainwater catchment system that feeds water into an underground water cistern which they use to water their enormous permaculture garden. They use no municipal water to irrigate their plants.

Indoors, they've installed a grey water recycling system that allows them to filter and clean water from the shower & bath and then reuse it a second time to flush their toilets.

It was really interesting to see how this alternative building technique can result in such enormous energy savings! And to see that an existing home can fairly easily be retrofitted to be more energy efficient!

Views: 104

Comment

You need to be a member of Home Energy Pros Forum to add comments!

Join Home Energy Pros Forum

Latest Activity

Diane Chojnowski posted a video
57 seconds ago
Building Performance Institute liked Jim Gunshinan's blog post What's In a Name?
19 hours ago
Jim Gunshinan's blog post was featured
yesterday
Daniel Baur-McGuire replied to Brett Little's discussion Looking for someone to do a webinar on ERVS and HRVS. Any interest?
"I see you are in Grand Rapids MI. I would suggest contacting Chris McTaggart with Building…"
yesterday
Luke Langhals replied to Brett Little's discussion Looking for someone to do a webinar on ERVS and HRVS. Any interest?
"Hi Brett, Feel free to shoot me an email with what you had in mind. Happy to help or provide…"
yesterday
Kurt Shafer replied to Brett Little's discussion Looking for someone to do a webinar on ERVS and HRVS. Any interest?
"Please email me what happens next to kurt@invisco.com"
yesterday
Daniel Baur-McGuire replied to Brett Little's discussion Looking for someone to do a webinar on ERVS and HRVS. Any interest?
"As long as it has a defrost function. The new cores are much improved for cold climates. "
yesterday
Daniel Baur-McGuire replied to Brett Little's discussion Looking for someone to do a webinar on ERVS and HRVS. Any interest?
"Construction Instruction, Mark LaLiberte, Justin Wilson, and Gord Cooke do a great job and I…"
yesterday
Ryan Moore added 2 discussions to the group Energy Auditing Equipment for Sale, Trade or to Purchase
yesterday
Jim Gunshinan posted a blog post
yesterday
Profile Iconlouie molenda and Steve Kramer joined Home Energy Pros Forum
yesterday
Kurt Shafer replied to Brett Little's discussion Looking for someone to do a webinar on ERVS and HRVS. Any interest?
"I would be happy to do a webinar. I am an expert in home ventilation after selling whole house fans…"
yesterday

© 2019   Created by Building Performance Association   Powered by

Badges  |  Report an Issue  |  Terms of Service