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Building Science

Why Foam IS Energy Efficient

* Reduces energy bills by up to 50% each month

* Minimizes random air leakage

* Maintains consistent indoor ambient temperature using less energy

* Reduces heating and cooling loads on HVAC equipment

* Contributes to meeting Energy Star mortgage requirements

* Enhances resale value for a higher return on your investment

* Maintains its efficiency with no loss of R-value over time


Reducing the amount of money that flows out of your home is likely the main reason you'd give insulation a second thought. 

At InsulationSmart.com the buck (or dollars) stops here. Here we'll:

  • Help you make an insulation investment that pays for itself - sooner, rather than later.
  • Help you estimate potential savings using the right insulation.
  • Dispel common insulation myths that steer many insulation purchases wrong, including the old standby – "more insulation is better."

What Will I Pay and Save By Increasing R-Value?

Did you know 93% of conductive heat flow is already stopped by R-12 insulation? Upgrading from R-12 to R-40 reduces conductive heat flow by only another 5%.

When you increase R-value are you really saving or wasting money?

Learn the Truth
About R-value 

R-value only measures how well insulation resists heat movement through the insulation material (called conductive heat flow). The advertised R-value of conventional insulation, usually printed on its packaging, is determined by multiplying its thickness (in inches) by its
R-value/per inch.

R-Value per inch (3.6) x 3.5 inches of insulation = R-12.6. (laboratory R-value)

R-value is a popular way of comparing insulation, but it only tells part of the story of how well insulation will work in your home. Here are three reasons why:

1. R-value doesn't measure air leakage control.

R-value only measures energy moving in and out of your home through the insulation material (conduction). But energy (in the form of heat) can move in and out of your home in three ways:

Click here for an illustration showing common air leakage areas in a home.

Building codes in your area usually set a minimal acceptable level of R-value for areas in a home. But if insulation doesn't help stop random air leakage, it's not helping you control the source of up to half of the energy lost by your home (convection).

To make the best insulation investment consider a product offering the best of both worlds: an ideal level of R-value and control of random air leakage.

2. R-value is based on specific laboratory conditions.

In real homes, the R-value advertised can be diminished if insulation gets wet or if it's installed improperly (cut improperly or compressed into wall cavities).

3. Surprise! More or thicker insulation and higher R-values are not always better.

Most (93%) conductive heat flow (heat flow through a solid) is already controlled by R-12 insulation.  That means doubling R-value (from R-12 to R-24 for example) won't double your savings.

Get Better Resale & Payback 

Investing in insulation that can create an air barrier and minimize random air leaks can deliver almost immediate payback when monthly savings are greater than the cost of financing the insulation purchase.

On the other hand, it could take a long time to make back your money by adding insulation just to beef up R-value.
Air-sealing insulation could add re-sale value to your home.
By minimizing random air leakage you can lower monthly energy costs by up to 50%. Imagine the look on the faces of prospective buyers when they see their potential long-term savings. They'll feel and hear the difference of a home that's healthier, quieter and more energy efficient.

topics: Icynene, Incentives, Energy Efficiency


I had no idea that any one product could do so much for our homes as well as benefit the clients. We were able to reduce our energy consumption dramatically, which reduced our energy bills.