Weatherization 101: Caulk Your Windows Correctly

A tiny crack around a window may not seem like a big deal; however, according to the U.S. Department of Energy, a 1/16-inch crack is like leaving the window open 3-inch all year long!

Additional Information: 
  • You could save around 20%, or $200, per year on heating and cooling bills (this number is for the average Alliant Energy residential customer)
  • To make sure you are caulking correctly, visit powerhousetv.com/windows for a step-by-step video.