from Matt in Wauwatosa, WI:
#469
Adding insulation to our attic or replacing old inefficient windows? Which will save us more on our energy bill? I am trying to prioritize these projects.
Generally insulation will be more cost effective.
Typically, air sealing and adding insulation to your attic will save you more money, per dollar invested, than replacing windows.
Engaging the services of a professional energy consultant through the Home Performance with ENERGY STAR Program is great way to help you determine a practical plan of action based on the results of a homeowner interview, scientific testing, and a visual evaluation. The consultant will determine the overall efficiency of the home by looking at the building shell and appliances as well as the heating and cooling equipment. Because the consultant is not trying to sell you new windows (or anything else), the advice is unbiased and reliable.
Published Thursday, September 24, 2009