Atlanta window installer discusses energy efficiency
Low-emittance (Low-E) coating is microscopically thin, metallic oxide layers deposited on a window to suppress radiative heat flow.
Thanks to the federal stimulus bill, homeowners can claim a tax credit of up to $1,500 for upgrading to energy efficient windows, doors and skylights that are installed in 2009 or 2010.
In order to qualify, the windows need to have National Fenestration Rating Council certified U-factor (good insulating value) and Solar Heat Gain Coefficient (SHGC) ratings of no more than 0.30. For more information about the federal tax credit, visit energystar.gov.
Tim Rush says his 12 years working at Davis Window & Door was a natural evolution from his background in the remodeling industry as his favorite part of the job is pleasing customers.
"I enjoy interacting with the homeowners and knowing that we're able to offer them something that brings additional value to their home," Rush says. "They're often pleasantly surprised - they don't realize the difference new windows can make."
How can I make my windows more energy efficient?
"Typically, you'll need to replace your windows. Sometimes, the current windows can be made more efficient by making sure that air leakage has been addressed with caulking and making sure the frames are sealed properly. But that's not going to work every time because the sashes might not fit well.
“With replacement windows, we can provide you with a window that will seal the opening properly and eliminate any air leakage. We'll use high-performance glass that includes a foam filled frame around the window for insulation.
"The engineering of a window is what makes it energy efficient. It's like comparing a new Mercedes with a new Geo - they're both new cars, but the engineering of them is totally different.
“We offer Jeld-Wen windows on the wood side and Vanguard windows on the vinyl side, building the windows to a very tight tolerance, and use triple weather seals on all points of contact.
“Low-E coating is put on the glass and does two primary functions - most importantly it's a reflective barrier for radiant heat. In the wintertime, the heat from the furnace is reflected back in the homes. It also helps block the ultraviolet rays that cause fading to floors, drapes and furniture.
“The more layers it has, the better it performs. We have a window with 12 layers of Low-E coating that's specifically designed for the Southern climate. Eight months out of the year, we're trying to keep the heat out and the cooler air inside, and it does an outstanding job.
"The obvious benefit that's in focus right now is the reduction in the amount of energy that's needed to heat or cool your home. They'll reduce your costs. Secondary, if your furnace and A/C aren't cycling on and off as often, it will extend the life of them. Overall though, the comfort level of your home is definitely improved."