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What’s the Difference Between R-Value and U-Value?

  • admin
  • 23 Jan 2018
  •   Comments Off on What’s the Difference Between R-Value and U-Value?

We’ve talked about R-values before and what they signify in rating your garage door. What about U-value? Here’s what you need to know about the difference between R-values and U-values.

What Does an R-Value Measure?

The R-value measures the product’s ability to resist heat flow. That means, the higher the value, the better it is able to insulate against hot and cold temperatures. You want to have a door that has a higher value so that you can have a better-insulated garage.

We recommend you go with something that has an R-value of at least 14 or higher. That means the equipment can withstand greater storms, as well as keep the heat down in your garage. It is important to install a high-quality assembly on your home or business.

What Does The U-Value Measure?

The U-value measures the rate of heat transfer. So, with this measuring system, you want to have a lower U-value. That means that the product is more energy efficient.

Normally, window units and doors receive a U-value rating. If you are looking at a rating for your new system, then you will want to go with one that has a lower number. Unlike what you would do if you were looking at the R-value of a door.

What is the Difference Between R-Value and U-Value?

Some people think that the difference between the two is that they seem to be direct opposites of each other on the number scale. While it is true that the number systems are opposite, these two values are measuring different aspects of the product.

The R-value simply tells how well the specific materials are rated. Whatever material your door is made from is what receives the rating. The U-value actually rates the efficiency of the entire system, not just the materials. It takes into account how the system was manufactured for energy efficiency.

How The Values Are Calculated

Another major difference in these two values is the calculation method. The R-value simply takes into account one building material. In the case of a garage door, it would be the material used to manufacture the equipment.

These materials might be:

  • Wood
  • Vinyl
  • Steel
  • Metal
  • Composite
  • Or more…

The U-value has to take into account every material that is used on the product. That would include the glass of the windows, bars that connect the panels, and more. We take all materials into consideration to determine the rate of heat transfer. Some parts will increase insulation while others will detract from it.

Call Us For Assistance

If you aren’t sure if your door has the proper insulation or R-value, give us a call. Our phone staff can help you. We will send a technician out to you in order to answer your questions more fully. They can install a new door if you need something with a greater value.

Our team is happy to help you any way we can.


You Can Trust Us for the Job

positive reviews

They sent Doug Fussell out to my house on the day after Christmas! I had only called them three days before! Doug was a premier technician, very thorough and very efficient. I expected him to take two days, since he was replacing two doors and adding openers on each door. He only took the daylight hours of one day! I could not believe how fast he was! In addition, he thoroughly taught me how to use the remote openers. I highly recommend them to anyone!
~Donald B.

positive reviews

We just bought a home and this company was so understanding as I had to change the appointment time a few times. Then the tech came out and was so kind and helpful. I could not have asked for a better experience and will suggest them to anyone who needs work done on their garage door!
~Tammy K.

positive reviews

My garage door broke on a Saturday night as I was getting ready to leave for a holiday party. Kelvin was here within 30 minutes. He reviewed everything with me that was happening with my door. He gave me the estimates of what was immediately needed to be done in order for my door to raise and then what I will need to have done very soon. I could see all the problems he pointed out to me and I decided to have everything done. He completed everything that night. I was very satisfied with Kelvin’s professionalism and the work he did. Thank you again.
~Joyce N

We Service All Makes and Models of Garage Doors and Openers