How Does Attic Insulation Save Energy

You can do it yourself for about 500.

How does attic insulation save energy.

How much does attic insulation cost. Insulating your attic can save you money. Epa estimates that homeowners can save an average of 15 on heating and cooling costs or an average of 11 on total energy costs by air sealing their homes and adding insulation in attics floors over crawl spaces and accessible basement rim joists. Many people mistakenly think that.

Blown in insulation overview. Add the right kind of insulation. Enter your data into the fields where indicated. How much does it cost to insulate an attic and how much will you save.

Types of attic insulation for hot climates to lower energy bills the efficiency of home insulation is a science and so of course there s a numerical system for measuring it. The energy expenditure of powered attic ventilation fans also needs considering as such fans consume more energy than they save in homes without proper insulation although they may still address moisture issues and prevent rising heat from damaging roofs. In a well insulated home less warm air escapes from the house. Solar powered attic fans offer a potential alternative to electrically powered attic.

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. The higher the r value the better the thermal performance of the insulation. Department of energy s zip code insulation program to determine how much insulation you should add and where to achieve the recommended insulation levels for maximum energy efficiency. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

We track a material s ability to resist heat transfer with something called an r value. The zip code insulation program also provides insulation cost estimates and a rate of return on your investment. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy. Insulation reduces the exchange of heat through a surface such as a wall attic duct or roof.

You d hire an energy auditor to tell you exactly how much protection you re getting from the few inches of attic insulation you may already have and to pinpoint things like air leaks that you can seal to make sure your insulation will do its job well. First off you should know that insulating your attic isn t cheap. Use this insulation savings calculator to measure the financial impact of increasing your insulation performance. Methodology for estimated energy savings from cost effective air sealing and insulating.

The pros charge 1 500 to 2 000 to do a 1 200 sq ft. How does insulation conserve energy.