global-warming-potential / Green Building & Sustainable Home Renovation Information & Advice

New blowing agents for spray foam coming by the end of 2017 Foam insulation is a petroleum-based product and nothing will change that. But that was never the biggest problem the 'eco' building community had with foam insulation; the main issue was the inclusion of chemicals with a global warming potential (GWP) that wa...

So why is natural gas being phased out?   Natural gas is being phased out of new home construction because burning any fossil fuel releases carbon dioxide into the atmosphere and contributes to the warming of the planet. The carbon dioxide emissions from burning natural gas are lower than with oil or coal, but there ar...

All framing materials for the Demo House are FSC certified, and provided by our sponsor Kott Lumber. Kott engineered the plans for us , supplying detailed framing documents including a cut list for each framing member. We were also provided with a wood order to match, along with pre-cut lengths whenever possible. This ...

The following are some things to think about while evaluating a home before making an offer. If you're a driver: Check the route from the house to your place of work on Google traffic maps to estimate how much time you will spend in a car every day. If you're a cyclist: Check maps for bike lanes, bike paths and general...

Introducing BioCity's indoor vertical veggie garden. This beautiful installation made with reclaimed wine bottles allows you to grow arugula, chard, strawberries, cherry tomatoes and more all year round in your very own home. Thanks to the craftsmanship and innovation of the folks at Montreal based company BioCity, gro...

How to grow vegetables & fruits in a garden Plants survived long before humans were around to water them, so we aren't talking about reinventing the wheel here, but rather a sensible choice of plants and basic water management. Native species of plants in a given region have adapted to their own climate and can usu...

  The environmental advantages of wood frame construction: As just about the only renewable building material, wood has many advantages over other materials. It requires less energy to produce in terms of resource extraction, manufacturing and transportation. While still prevalent in residential construction, wood has ...

So, a little background story, I always called my mom "Laurence, the guardian angel of laundry", as she can always rescue any clothes she puts her hands on. She still wears many of the same clothing basics she's had since I was born, and I never understood how.  Recently, after much pestering, she finally told me one o...

Our previous update covered aspects of the building envelope, which allowed us to reduce the annual heating requirement to about the Passive House standard of 15 kWh per square meter. Windows are a part of that but they are also part of our energy performance strategy. The house is laid out south facing to maximize pas...

There are a few things that will cause any furnace to either stop running, or only deliver cold air, so here are a few easy DIY furnace repair tips that may get you warmed up without having to call an HVAC professional. It is at least a place to start, so you aren’t paying someone to come tell you that your thermostat ...

While developing pages on passive heating and cooling and writing about Passive House, we were in contact with Harold Orr, a world-renowned environmental engineer, pioneer of the very concept of 'green building'. and who was recently awarded the Order of Canada for his pioneering contribution to energy-efficient home c...