Adding blown-in insulation to your attic space is a popular way to improve energy efficiency and reduce heating and cooling ...

That means your attic is insulated to about R-49, or 14 x 3.5. Keep in mind that you can add up the R-values of different types of insulation. So what’s the ideal R-value for the attic in your ...

Learn how to properly use expanding foam. In most homes, but especially in older homes, adding insulation in the attic will ...

To further increase thermal resistance, we decided to replace the roof and upgrade our attic insulation. In March, we removed the 4-kW solar array as well as the existing, substandard roof tiles.