Ask builders or architects what the best kind of insulation is, and you’ll likely hear some strong opinions. From R-values to ease of installation, clean-up requirements, cost and other factors, they’ll tell you why their preferred material is tops. Of course, each insulation manufacturer will also say their products are best.
But the reality is, the most accurate answer is, “it depends.” The appropriate insulation varies by the specific project, structural framing type, budget and various other factors. In many cases, using multiple insulations in combination enables the most energy-efficient homes and buildings.