Atlanta Area Window and Door

When comparing energy efficient windows, one number that really matters is a U-Value. But knowing what the U-Value actually means makes the difference when selecting the right energy efficient window for your home. 

If I walked into your home and offered you $1 million house tokens to buy it from you, the first thing you’d ask is, “how much is $1 million house tokens worth in dollars?” It’s the same with a U-Value. If I tell you my window has a U-Value of .25 that number means nothing to you until you understand what a U-Value is. 

What’s the Value of “U”?

For starters, a U-Value measures how well a window insulates heat. That is, how efficiently does it keep heat out of the home in the summer and  keep heat in the house in the winter to put it more simply. The reason a lower U-Value is better than a high one is because lower numbers mean that a particular window is allowing heat to transfer at a lower rate.

Heat is always active and will escape or enter your home regardless of how well your windows are insulated. But technology in replacement windows and efforts by manufacturers to lower the rate of heat transfer have given windows great insulation value. 

Putting  It into Perspective

You may have heard of “R-Values” before. The higher this number the better. R-Values apply to things such as fiberglass insulation (or new spray in foams and other methods of insulating a home), walls, and doors. 

For example:

Your insulated walls may have an R-Value somewhere around R 10-18.

And Your floors may be insulated well enough to achieve a R 20-25. 

Your attic space may have an R-Value up to R 39-49.

So with higher being better you can get an idea of what the actual value of these numbers are in terms of “R-Value”. 

Now back to U-Values. To understand their value think of the U-Value as the opposite of the R. Since R-Values measure how well solid materials insulate heat you can’t apply them to glass. Glass in windows is designed to see through and open and no matter how well it is insulated it will let heat out at some point. So in order to understand how well a window is insulated we have to understand how well it is slowing heat down NOT keeping it in like we would want to know with an R-Value. That’s why a U-Value is the inverse, or opposite, of a R-Values. 

So, to keep the math easy…

a window with a .25 U-Value has an insulation value equivalent to a R Value of 4. 

a window with a .10 U-Value has an insulation value equivalent to a R Value of 10. 

Now it’s not safe to assume that R Values and U Values are quite as interchangeable as I’ve just demonstrated but the purpose is to give you an idea of the value of each “U” number you get as you look at thermal double paned windows.

To sum up, lower U Value means a lower rate of heat transference. The lower the U Value the better the insulation of the window. We use U Values rather than R Values when considering windows because they’re really more accurate for judging how well a window is insulated. 

Also, keep in mind, when looking at a U Value make sure you know whether or not this number is for the whole window or just the center of glass. Center of glass numbers are always going to be better than the overall U of a window and to really get an accurate comparison you want the overall U Value. 

Check NFRC.org to look up insulation ratings on windows that are thermally certified or give us a call at Atlanta Area Window and Door Co. to find out about which thermal windows we offer. 

Spring is in full swing and summer is just around the corner. You may be enjoying the mild, keep-your-windows open weather we’ve been having lately but if you’ve lived through an Atlanta summer, you know it’s gonna get HOT. And if you’re really looking to stay cool, here’s a quick tip to help fight those humid Atlanta summers.

While it’s still early spring, there are some easy things you can do now to to help keep your home cooler, fight back against rising energy costs, and lower your AC bill.

Here’s one quick tip to help you stay cool-

Turn off the AC and turn on…

A portable fan!

While you’re hanging out in one room for a while, to watch TV, grab a cup of coffee and read a book, or work on your blog, grab a little fan and prop it up near by.

Or just turn on the ceiling fan for a little while. In either case, if you can reduce the amount of energy used by AC units, which not only consume high rates of energy but emit a lot of C02 gases.

So there’s a quick little way to cut down on using up a ton of energy this summer and stay cool. We encourage you to open your windows too but if you can’t get them open, we’ll be glad to help there too!

For more tips, stay tuned here or contact us at AtlantaWindows.com

Of the many investments that homeowners make…think about them for a moment.
Mutual funds, bonds, stocks, entertainment, 401 k’s, automobiles, college funds, savings. How many of them are guaranteed to be around 20 years from now let alone to last a lifetime? Not only that but how many of those investments will have long term effects that will outlive their original buyer?

Believe it or not replacement windows and doors with lifetime warranties are the kind of investments that you know will last for many years to come. And it’s not just because they’re built to last.

Vinyl replacement windows that are energy efficient and use the most advanced technology of the day reduce energy usage, reduce C02 emissions, and help you save money year after year for a lifetime. When you replace a thermally inefficient single paned window, which does nothing to keep heat from transferring in and out of the house, you upgrade to a window that will ensure a reduction in heating and cooling usage.

Wouldn’t it be nice to put an investment in your home that not only helps your home become more beautiful but take a step toward going green? And wouldn’t it be nice to invest a feature on your home that not only has a lifetime warranty but comes with a lifetime warranty to cover the installation and service? Green, energy efficient, replacement windows are a step in the right direction.

There are very few investments you can make on your home in Atlanta that will last a lifetime. Not only that but there are very few investments that will increase your energy efficiency like a replacement window so that you can contribute to something positive that will help the next generation keep Atlanta going green!