Dean delves into how insulation prevents energy loss through conduction, air infiltration, convection, and radiation. Using clothing analogies, he explains how higher R-value insulation reduces energy transfer—like a heavy coat keeps you warm. He emphasizes insulating your attic, likening it to putting a warm hat on your house.

Dean also debunks myths about window replacements drastically cutting energy costs unless you're replacing old single-pane windows. With autumn's arrival, it's the perfect time to consider improving your home's insulation.