She also says fear of the unknown is also factor. “People get nervous to have windows cut out of their home but when done correctly by a reputable contractor, there is nothing to fear.”
The team at Henderson & Daughter understands the idea of replacing windows can be daunting for any homeowner. Cutsforth says it is their goal motivate and educate people about the process of replacing windows and about all the options that are available now.
Introducing Low-E Glass
Low-E means low-emissivity, which is glass treated with coats of silver oxide so it can minimize infrared heat and ultraviolet rays while maximizing the amount of actual light passing through.
Thea Cutsforth explains the basic concept behind low-e glass is that its heat reflective properties keeps heat outside in summer and holds heat inside during winter.
It sounds so modern and high tech that people may assume it’s rare and probably expensive.
Although the concept of low-e glass may sound like it would come with a higher price tag compared to regular clear glass, this kind of window glass does not cost that much more. In fact, Cutsforth says it is the new normal and comes with many benefits.
“It’s amazing how affordable energy improvements have become,” says Cutsforth. “Twenty years ago most people had regular clear glass, and in order to get energy efficient glass there was solar bronze glass which is dark, brown tinted, doesn’t let in light, and is more expensive.”
“Low-E glass, the standard today, is about a quarter of the cost of solar bronze glass, more energy efficient, and lets in more natural light,” she explains.
It’s all about the U-Value
Here’s some more heavy science: U-value. Also known by a longer name, thermal transmittance, u-value is a common term in building energy efficiency ratings that refers to rate of heat transfer and insulation performance. The lower the u-value number, the higher the insulation properties and better the energy efficiency.
Cutsforth says that standard low-e glass with two coats can give a u-value of .35, but now there’s a new low-e option called “fourth surface” that performs even better.