That is what the options in the right-hand column focus on. This refers to a material's resistance to heat. The higher the R-value the better. This means that heat will not be easily conducted through the material. It is also the most inefficient.
Much heat is lost or gained through unprotected glass.
False - Windows are a thermal weak spot since up to 15 times more heat is lost or gained through windows than through an equal area of wall space. There is much more you can do except have fewer windows. You can use double paned windows, low-e glass, storm windows, plant trees, use solar screens, etc. 5. In warm areas like Louisiana where we want to keep heat out in the summer, the coating should be on the enclosed surface of the outer panel. False - The gas most used is argon.