|
|
![]() |
|
![]() Check out our A- rating Better Business Bureau! Complaint Free Award 2008 ![]() Innovative Home Concepts 4410 IL Route 176 Suite 6 Crystal Lake, IL 60014 888-356-9020 815-356-9029 Fax info@innovatemyhome.com ![]() |
||
|
How Much Insulation do I Need? U.S. Department of Energy's recommended insulation levels ![]() Existing Wood-Framed Houses ![]() Note: The map and table shown are the Department of Energy’s (DOE) R-value recommendations for existing homes and are based on comparing future energy savings to the current cost of installing insulations. Higher the R-Values mean the greater insulating power. What’s an R-value?
Heat naturally flows from warm to cool. In
summer, heat flows in. In winter, heat flows
out. Insulation, which comes in many forms,
resists the flow of heat. “R-value,” meaning
resistance to heat flow, measures insulation’s
effectiveness. The greater the R-value, the
greater the insulating power. R-values are
cumulative, so don’t remove old insulation
unless it’s damp or mildewed. Adding a layer of
R-30 insulation batt to an existing layer of
R-19 batt will give you a total of R-49-the
minimum for Northern Illinois. |