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Glass Package Options

When it comes to replacement windows; your options include the frame material, type of glass and how many layers of glass to have in the frame. Since 80% of a window is glass, most energy savings come from improved glass performance, not a high R-value of the frame.

Single, Double or Triple Pane Glass?
The biggest choice in glass is the number of panes of glass: one, two or three. The decision often comes down to a choice of weighing your initial investment against expected long-term benefits.

A single pane window is the least expensive alternative. They are also the easiest to repair and weigh the lightest too. But a single pane window won’t do much to lower heating bills as they permit heat to escape easily.

Most homeowners now opt for insulated glass when replacing existing windows, with either double or triple window panes. A double pane window with inert gas between the panes is a big improvement over a single pane window. But a quality window with three panes, inert gas fill, and low-e glass will always have the lowest U-factor, an important measure of insulation value.

Dual pane windows are made up of two pieces of glass separated by an airspace. The panes are physically sealed together, and cannot be separated. Dual panes can be made up of countless combinations of glass and spacers to make the overall thickness anywhere from 7/16″ all the way up to 1 and 1/4″.

A triple pane glass package consists of three panes of glass separated by two sealed chambers of inert gas, usually argon or krypton. This creates a glass “sandwich” that provides substantially more insulating value than a single pane of glass, or even a double-glazed window. Insert gases like argon and krypton are used because their molecular composition make them particularly effective at blocking energy transfer.

Low-E Glass
In general the more airspace that there is in the unit the better the insulation the window provides. There are other factors that can improve the efficiency of of your windows. Among the best options you can have on your windows is a low-e coating. This will allow your windows to reflect much of the heat and UV radiation away from the inside of your home.

Low-e glass is short for low-emissivity glass. It has a very thin coat of material on the glass to make it more efficient. It helps reflect standing heat away from the surface of the glass, keeping unwanted heat out in the summer and desired heat inside in the winter. Low-e glass is the most cost effective way to increase the energy efficiency of the windows.

Low-e coatings can also help reduce furniture and carpet fading by reducing the amount of ultraviolet (UV) radiation that enters the home. Harmful ultraviolet radiation can alter the chemical structure of dyes and other colorants in carpets and furniture causing fading.

Low Conductive or “Warm” Spacers
In order to provide proper insulation the layers of glass in a window must be appropriately separated by spacers. In the 1960s, window manufactures began using aluminum spacers. They soon realized because aluminum is an excellent heat conductor when used as a spacer for most edge systems there was a major heat loss at the edge of the insulated glass unite, reducing the energy efficiency benefits. This heat loss also made the windows susceptible to condensation.

Modern windows use spacers made of thermoplastic or other advanced materials that will not conduct heat and cold like aluminum, helping to further reduce heat convection and energy transfer through the window.

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We Were Totally Pleased

A Plus Roofing recently replaced our roof, and we were very pleased with their professionalism, attention to detail, and the overall quality of the job they did. From the initial quoting process, during which Bill Kain explained how they would do things and the extra things A Plus Roofing would do to make the job look and go well, to the care of the actual workers in protecting everything around our house as they did their work, to the final cleanup of the job, we were totally pleased with our choice in contractors. I plan to use A Plus Roofing for other work on my house in the future (gutters done with roof, siding and window work in the plan), and I will heartily recommend them to all of my friends and neighbors without hesitation. 

– Henrico

Very professional

Very professional. Did exactly what they said they would do. No surprises.

– Hanover

Excellent Experience

The experience with A+ Roofing was excellent. I would recommend this company for their courteous, professional, and efficient service and expertise. We are most pleased with our new roof and the workmanship of the project. The roofing crew was amazing to watch....so hardworking and professional. Mr. Kain was in touch during the whole project and we knew were in good hands. Many thanks! 

- Chesterfield

We Are Very Satisfied

This was our first roofing experience. We checked the company out online and asked the company for references from previous jobs. I talked to two previous customers (1 asphalt roof and 1 metal roof on residential homes) and both couldn't say enough good things about the company, their crews and the quality of their work. We are very satisfied and would definitely recommend them to others.

-Louisa

Would Definitely Recommend!

The team was professional and thorough. The house looks like a completely different house with the beautiful new roof! There was not a speck of debris left in our yard. After the roof was on and the materials were cleaned up, I was impressed to see the workers carefully going around our whole property using giant magnets to pick up any loose nails that may have fallen.  We've had over a foot of snow and several heavy rains and have been very snug under our new roof. Would definitely recommend! 

- Henrico