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Minimizing Energy Losses in Ducts

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

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Contact Information
 
Address:    8701 125th Ave. Stanwood MI 49346
Phone:  (616) 696-2866
Hours of Operation
Monday:   8:00am - 4:30pm
Tuesday:   8:00am - 4:30pm
Wednesday:   8:00am - 4:30pm
Thursday:   8:00am - 4:30pm
Friday:   8:00am - 4:30pm
Saturday:   Closed
Sunday:   Closed

24/7 Emergency Service Available
Connect With Us
 
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Payment Options
For Furnace in Cedar Springs MI, we accept most major credit cards.
We accept cash for Heating repair service provided in    .
We accept check for Boiler repair service provided in    .
Send Us a Message
 
Contact Information
 
Address:    8701 125th Ave.
 Stanwood MI 49346
Phone:  (616) 696-2866
Hours of Operation
Monday:   8:00am - 4:30pm
Tuesday:   8:00am - 4:30pm
Wednesday:   8:00am - 4:30pm
Thursday:   8:00am - 4:30pm
Friday:   8:00am - 4:30pm
Saturday:   Closed
Sunday:   Closed

24/7 Emergency Service Available
Connect With Us
 
For Furnace repair in Cedar Springs MI, like us on Facebook!
For Furnace repair in    , visit us on Google!
Leave us a review on Yelp about your Furnace replacement in    .
 
Payment Options
For Furnace in Cedar Springs MI, we accept most major credit cards.
We accept cash for Heating repair service provided in    .
We accept check for Boiler repair service provided in    .
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Home   |   Email Us   |   Schedule Service
Get a Quote   |   Guarantees   |   Maintenance
Employment   |   Privacy Policy   |   Search Site