SALES
SERVICE
INSTALLATION

R-Value of Insulation

R-Values of Insulation

An insulating material’s resistance to conductive heat flow is measured or rated in terms of its thermal resistance or R-value -- the higher the R-value, the greater the insulating effectiveness. The R-value depends on the type of insulation, its thickness, and its density. When calculating the R-value of a multilayered installation, add the R-values of the individual layers. Installing more insulation in your home increases the R-value and the resistance to heat flow. To determine how much insulation you need for your climate, use an insulation calculator or consult a local insulation contractor.

The effectiveness of an insulation material’s resistance to heat flow also depends on how and where the insulation is installed. For example, insulation that is compressed will not provide its full rated R-value. The overall R-value of a wall or ceiling will be somewhat different from the R-value of the insulation itself because heat flows more readily through studs, joists, and other building materials, in a phenomenon known as thermal bridging. In addition, insulation that fills building cavities densely enough to reduce airflow can also reduce convective heat loss.

Unlike traditional insulation materials, radiant barriers are highly reflective materials that re-emit radiant heat rather than absorbing it, reducing cooling loads. As such, a radiant barrier has no inherent R-value. Although it is possible to calculate an R-value for a specific radiant barrier orreflective insulation installation, the effectiveness of these systems lies in their ability to reduce heat gain by reflecting heat away from the living space.

The amount of insulation or R-value you'll need depends on your climate, type of heating and cooling system, and the part of the house you plan to insulate. To learn more, see our information on adding insulation to an existing house or insulating a new house. Also, remember that air sealing and moisture control are important to home energy efficiency, health, and comfort.


U.S. Department of Energy - Energy Efficiency and Renewable Energy

24 HOUR EMERGENCY SERVICE | CALL US TODAY AT: (847) 729-1040 | FILL OUT OUR SERVICE REQUEST FORM
Location
We service most Furnace brands and models near Glenview IL.
Business Address:
2015 Johns Drive
Glenview, IL 60025
Contact Us
Contact Us
Schedule your Water Heater replacement in Deerfield IL.
Company Phone:
(847) 729-1040
We offer 24/7 emergency Boiler repair service in Glenview IL.
Office Hours:
M-F: 8am-4:30pm, Sat: 8am-12pm
24 Hour Emergency Service
For Furnace repair in Glenview IL, like us on Facebook!
For Boiler repair in Northbrook IL, visit us on Google!
Email us any questions about our Water Heater repair service in Deerfield IL
For Furnace repair in Glenview IL, like us on Facebook!
For Boiler repair in Northbrook IL, visit us on Google!
Email us any questions about our Water Heater repair service in Deerfield IL
Payment Options
We Accept Cash, Check and Credit Cards
For Furnace in Glenview IL, we accept most major credit cards.
Financing
FROM AS LOW AS 4.99%
Home   |   Email Us   |   Schedule Service   |   Get a Quote   |   Ask a Tech   |   Maintenance   |   Employment   |   Privacy Policy