FIVE ENERGYSAVING MOVES

Insulation

Fibreglass insulation on the side walls was replaced with Roxul—a sustainable, energyefficient material made from recyclable rock and waste byproducts (such as slag from the steel and copper industry). Along with being fire-retardant and water-repellent, it eliminates any cold spots.

Steel roof

The roof is now corrugated steel with a coating that inhibits rust. This top layer also helps reflect sunlight and limit the amount of heat entering the third floor, reducing the use of cooling appliances during the summer. It can last for more than 50 years—twice as long as shingles.

Windows

Strategically placed windows take advantage of sunlight and allow natural cross-ventilation (when air enters one window and exits another), which cuts down on the need for artificial cooling.

Wall- mounted cooling units

When the homeowners require air-conditioning, they can turn on the ductless system on the upper floors to efficiently cool the space.

In- floor heating

Radiant heating is the primary source of warmth on the main floor. The in- floor system keeps the temperature uniform by preventing any hot or cold spots. A lightweight concrete was poured over the pipes to lock in the heat.