10 Home Insulation Mistakes That Waste Money (2026): What Canadian Homeowners Get Wrong

A homeowner in Ontario gets three quotes for attic insulation. One contractor recommends topping up to R-50. Another pushes R-60. A third suggests spray foam for “better performance.” Which is right? The decision feels like it hinges on the product or the highest number. In reality, bigger questions often matter more: Is the attic properly […]