1) Hydro One Networks, Energy Efficiency Tips & Tools, available at http://www.hydroonenetworks.com/en/efficiency/windows_walls/caulking_weatherstriping/cheap_tips.asp

2) Toolbase Services, Energy Efficiency in Remodeling: House Air Leakage, available at http://www.toolbase.org/Home-Building-Topics/Energy-Efficiency/house-air-leakage

3) Natural Resources Canada, The EnerGuide for New Houses Service, available at http://www.oee.rncan.gc.ca/residential/personal/new-homes/upgrade-packages/energuide-service.cfm?attr=4

4) Hydro One Networks, Energy Efficiency Tips & Tools, available at http://www.hydroonenetworks.com/en/efficiency/windows_walls/caulking_weatherstriping/cheap_tips.asp

5) Ibid

6) Natural Resources Canada, Air Leakage Control, available at http://www.oee.rncan.gc.ca/residential/personal/new-home-improvement/choosing/insulation-sealing/air-leakage/khi-controlair.cfm?attr=4