gravinas window replacement

Why is SHGC important?

Why is the SHGC, or Solar Heat Gain Coefficient, so important when replacing your windows?   We know U-Factor is about how well glass in a window insulates, but what about SHGC?  

The technical answer is summed up here:

The SHGC is the fraction of incident solar radiation admitted through a window, both directly transmitted and absorbed and subsequently released inward. SHGC is expressed as a number between 0 and 1. The lower a window's solar heat gain coefficient, the less solar heat it transmits.  How to best balance solar heat gain with an appropriate SHGC depends upon the climate, orientation, shading conditions and other factors. SOURCE

When we talk to homeowners about replacing windows we know that glazing and performance matter with the glass packages.  In the old days, single pane glass didn't insulate well and it didn't have Low-E (silver oxide) coating to help with Solar Heat Gain or energy efficiency.   Low-E coatings help reduce harmful UV and Infrared rays from the sun.  This is why it gets so hot in your home with direct sunlight on poor performing glass.  When the temperature soars, ordinary window glass just can’t handle the heat. And tinted glass spoils the view. Low-E glass, however, has been specially formulated to reject the sun’s heat without affecting the view. It lets more light in and keeps more heat out.  So, your home stays cool and comfortable.  What’s more, Low-E provides exceptional fading protection as well. It can block 95% of the sun’s damaging ultraviolet rays (a leading cause of fading), so it will help your furniture, carpets, art and wall coverings stay beautiful.

In the end, you want a lower solar heat gain when choosing new windows in your home.  Look at U Factor and SHGC ratings to make an informed choice on your window purchase.


“Smart House” Gets a Boost

Dubbed the “responsive house” in 1975, the concept was promoted as the Smart House for decades by the NAHB. After every Builder’s Show, when a new Smart House demonstration home was revealed, it was met with much intrigue, and perhaps a little skepticism. JLC kept tabs on the trend (for example: “Smart House Sweepstakes,” Jan. 1988;    “Home Automation Update,” Feb. 1992   and  “Smart House: They’d Do It Again, But …,” Jan. 1993), but it wasn’t until the Internet matured, and after smart phones became ubiquitous, that the concept seems to be closing in on those often-hyped expectations.

  1. Google is making the biggest push into the latest incarnation, now dubbed the “connected home,” other big companies are positioning themselves in this burgeoning market, as well. According to Jenna Wortham in the New York Times, big players including Time Warner Cable and AT&T offer connected home systems, and Staples, the office-supply chain, is selling light bulbs and other products that can be controlled by a smart-phone application.  Apple has also jumped into the game by securing patents for a line of “iHome” products, which will reportedly enable the iPhone to control home devices.

The right network (the Internet) and the right device (the smart phone) are finally making all those Smart House dreams come true. Wortham reports the connected home products market could grow to $40 billion within five to seven years.

Credit to orginal article here

Why Window Seals Fail

Do your current windows have condensation problems?  Are there beads of moisture running down between the panes of glass?  Both of these are indications that your windows have seal failure.  Visible fog, moisture, or condensation are all signs that the window unit has simply reached its threshold to absorb moisture.

What is it that causes window seal failure? There are a number of things that can lead to it, but I’ll touch on the most common causes.

What makes fiberglass replacement windows and doors green?

Going green can be as simple as getting replacement windows and doors. You can’t go far today without seeing or hearing about environmentally friendly products, especially in Colorado. It’s “green” this or “green” that everywhere you look. The Denver Metro Area has repeatedly been on numerous “Healthiest City” lists. With organic products and natural food stores scattered across the state, it is no secret that Colorado has jumped on the “green” bandwagon.

The United States Environmental Protection Agency (EPA) is an agency of the federal government in charge of protecting human health and the environment. The EPA writes and enforces regulations based on laws passed by Congress. They have criteria they use to define a “green” product. The five the agency uses are: energy efficiency, lifespan of material, manufacturing process, manufacturing costs, and impact of the environment.

Fiberglass replacement windows and doors meet all of the EPA’s above criteria. When you come to Gravina’s Window Center, our sales staff will help you understand why fiberglass is a superior material to vinyl. Our goal is to teach our customers about the replacement windows or doors they are buying. Our products use high performance glass, which is what makes the products extremely energy efficient. The windows we sell use two panes of glass instead of one, keeping the hot air in and the cold air out during the wintertime months and vice versa. As any Coloradan knows, our temperatures fluctuate daily. Therefore, having this high performance glass is essential for energy efficiency. Fiberglass windows and doors have a much longer lifespan than the competitor vinyl products. In addition, our sales staff is knowledgeable about the environmentally friendly manufacturing process and costs. The best news yet in regards to “going green”-fiberglass is recyclable by design. Therefore, it has a very low negative impact on the environment.

Stop by our showroom on Littleton Boulevard and let our knowledgeable sales and office staff help your home go green this year with fiberglass replacement windows and doors.

Do You Need Replacement Windows? Here’s How to Know!

There are several signs that your windows are deteriorating. While some are very obvious to the average home owner, others are harder to notice.

Let’s start with simple things that you quite possibly already know. First, check for drafts. Marvin Windows suggests holding a lighted candle in front of the window’s edge. If the candle flickers, it means there are drafts coming through the window. Another thing you can do is check for caulk/seal failure. To do this, stand outside your window with a flashlight. Run the flashlight around the window frame while another person stands on the other side. If the other person can see light coming through, it may mean caulk or seal failure. Finally, if your house is painted, check for peeling paint. Marvin Windows warns that this can be caused by moisture traveling through improperly sealed windows and back out to the exterior. In addition, they warn that in older homes, exposure to UV rays and temperature extremes may cause frames to expand and contract.

Some signs might be very obvious to you as well. Things such as frost and ice buildup, loud outside noises, and proper function are all important to look for.

All of the above signs will ultimately lead to window failure. It is good to catch these problems early so you don’t have to deal with high energy bills. If you think your windows are failing, Gravina’s Window Center will be more than happy to help you determine which window replacement option is best suited to your needs and wants!