Secondly, because it is applied by spray, it gets into every nook and cranny between the inside and outside walls of your home. It prevents the air leakage that conventional insulation allows, since cold air will travel around the edges of conventional insulation the way cold air will blow through the edges of an ill-fitting window.
Lastly, spray foam is an approved vapor barrier, blocking not only moisture, but also pollutants, dust, odors and allergens which in Winnipeg is perhaps even more important than its thermal insulation properties. It provides the peace of mind that comes with knowing that you are creating a healthy interior environment for your family.