Split System Heating and Cooling. INSPECTING AND EVALUATING YOUR INSULATION.

Check the attic, walls, and floors adjacent to an unheated space, like a garage or basement. The structural elements are usually exposed in these areas, which makes it easy to see what type of insulation you have and to measure its depth or thickness (inches).
 
Inspect the exterior walls by using an electrical outlet: Turn off the power to the outlet.
Remove the outlet cover and shine a flashlight into the crack around the outlet box. You should be able to see if there is insulation in the wall and possibly how thick it is. Pull out a small amount of insulation if needed to help determine the type of insulation. Check outlets on all floors as well as old and new parts of your house. Just because you find insulation in one wall doesn't mean that it's everywhere in the house.

1 Ton Mini Split. Determine the R-values of Insulation.

Inspect and measure the thickness (inches) of any insulation in unfinished basement ceilings and walls, or above crawlspaces. If the crawlspace isn't ventilated, it may have insulation in the perimeter wall. If your house is relatively new, it may have insulation outside the basement or foundation walls. If so, the insulation in these spaces won't be visible. The builder or the original homeowner might be able to tell you if exterior insulation was used. Once you've determined the type of insulation you have in these areas and its thickness (inches), see the U.S. Department of Energy's online Insulation fact sheet to determine the R-values of insulation previously installed in your home.

Mini Split Heating and Cooling. DETERMINING RECOMMENDED R-VALUES.

When you find out the R-values of your insulation either from an energy assessment, the home builder, or your own inspection, you can then use the U.S. Department of Energy's Zip Code Insulation Calculator to determine how much insulation you should add and where you should add it for maximum energy efficiency.

Alpine Heating and Cooling. ESTIMATING COSTS AND PAYBACK.

The Zip Code Insulation Calculator provides insulation cost estimates and a rate of return on your investment. Also see our information on estimating the payback period of additional insulation. DECIDING WHAT TYPE OF INSULATION TO ADD. If you decide to add insulation to your home, review our information on the types of insulation available to help you decide what type to use and where to insulate.