For many years now, the buzz has been that replacement windows would save homeowners money on their power bills, keep the family warmer or cooler and enhance curb appeal. Homeowners were educated as to how the panes insulated the home, what types of windows required little-to-no maintenance and how to check for leaks before owners sought new windows.

While all of this is good to know, the cost of replacement windows can be staggering. If the checkbook can’t support either new windows or overpowering power bills, there is an alternative. In a new twist on an old subject, storm windows vs. replacement windows could mean an all around savings as well as increased curb appeal for Colorado homeowners.

Storm Windows vs Replacement Windows

Never Heard of Storm Windows?

Storm windows offer extra protection against the vagaries of extreme weather and are usually removed each spring. They can either fit outside or inside existing windows. Choices are clear glass or plastics like Plexiglass. Glass is heavier, more fragile and more expensive, while plastics are cheaper, lighter and can become scratched. In addition to protecting existing windows, storm windows help insulate better than replacement windows.

  • Storm windows fitted outside existing windows get condensation that must be vented through a “weep hole” before it can damage windows. They do, however, prevent air leakage, and they also keep weather from damaging existing windows.
  • Indoor storm windows fit tighter to the existing window, causing a sort of suction that keeps air from leaking out. They provide ease of use and cleaning as well as insulation. Interior storm windows look better from the road, but are apparent indoors.

It’s Clear as Glass

An interesting study was cited on the website in an article explaining what windows are all about. The article cited Boulder window efficiency studies in 2006 and one from Denver in 2004. The study showed that Denver windows lost ten percent less heat in winter and 40 percent less cooling in summer using double-pane windows.

Additionally, a citation of a Home Energy article from 2000 stated that storm windows helped those with poor windows and a small checkbook improve energy efficiency. Low-E storm windows are available, said the study, for colder climates that increase the amount of heat in a space. This means heat generated from outside the windows or inside from family movement; it is called heat gain.

Who Needs Storm Windows?

Owners of homes less than 25 years old shouldn’t have a need for replacement windows. Homes of 30 or more years might have windows not as tight as they could be, but that can be fixed with a little caulk or weather-stripping. Windows of any age, however, damaged by hail or flying debris during a bad storm could sustain damage that causes air leakage.

Pressure from snow piled up on outside window frames and then frozen could cause the same problem over a period of time. Those owning historic properties that seeking to maintain historic integrity of their home benefit from an education about storm windows, because they could be the better bargain.

Advantages of Custom

In addition to weather damage reduction, increased energy efficiency and being burglar-proof, there are other major benefits of custom fitted storm windows:

  • Can be made to fit any style and size window
  • Can be made to comply with historic area regulations
  • Available in most materials including wood
  • Harmful UV light reduction
  • Extra layer of soundproofing
  • Increased home value
  • Lifetime warranty


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