Thermally Broken Balconies
These balconies are separated from the internal structure of the building to minimize conductive heat loss. Traditional balconies send heat to the outdoors and bring the cold indoors because of their attachment to the internal structure. They can also lead to condensation problems such as mold. Thermally broken balconies are separated from the rest of the structure to prevent these problems.
These structures can be supported by 4 columns on the corners. They can also be supported by two of the corners and intermittently fastened to the adjacent floor where insulation is placed between the floor slab and the balcony to prevent thermal bridging. They also allow for rain to travel to the drainage cavity and down the walls of the buildings unimpeded by the balconies. This prevents water from building up and then being redirected into the building.
The benefits of these balconies are that they reduce energy usage, prevent conductive heat loss, and prevent cold interior surfaces and condensation problems. It also allows for the continuation of the building envelope thermal and simplifies the use of air entrained concrete for the balconies.
Kathleen O'Neill Cole
Cole + Associates Architects Inc.
1188 Wellington Street
Canada K1Y 2Z5
Phone: (613) 728 0008
Fax: (613) 728 2364