There is some lack of consensus as to the benefits of green roofs in cold, heating dominant climates. There aren't a lot of studies done into this so the rule of thumb has generally been that green roofs provide their energy savings in hot climates where the demand is...

If you've ever tried to grow tomatoes on a balcony in Calgary, you might already know the answer to this question. It's dry, windy and cold! What doesn't dry up blows away. Anything on the building envelope is especially exposed. We face these same challenges when esta...