Why is SHGC important?

gravinas window replacement

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 …

“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;    …

Why Window Seals Fail

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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 …

What makes fiberglass replacement windows and doors green?

Gravinas Littleton Energy Savings, Window Replacement , 0 Comments

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 …

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

Gravinas Littleton Energy Savings, Window Replacement 0 Comments

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 …