What is Attic Insulation & Why is it Crucial in Ontario?
Attic insulation is a thermal barrier installed in your attic space that resists the flow of heat. In simple terms, it keeps the warm air inside your home during the winter and prevents hot attic air from radiating down into your living spaces during the summer.
Given Ontario’s climate, with its significant temperature swings, a properly insulated
attic is one of the most effective ways to maintain a stable indoor temperature, reduce energy consumption, and protect your home.
Without adequate insulation, your heated or cooled air easily escapes through the roof, forcing your HVAC system to work harder and longer, leading to higher energy bills and inconsistent temperatures. The Ontario Building Code recognizes this importance, mandating minimum insulation levels (R-60) for new constructions, with experts often recommending even higher levels (R-70 to R-80) for optimal performance, especially in older homes.
