Not All Windows Are the Same

Not All Windows Are the Same: What You Need to Know About Windows

1. Performance

ENE_crt_cENERGYSTAR The ENERGY STAR label certifies that the window is a positive choice for energy-efficiency. ENERGY STAR is a government back voluntary partnership program to help consumers recognize energy-efficient products.  

AAAMA LOGOAMA – The American Architectural Manufacturers Association is recognized internationally for the development of standards that provide third-party validation of product performance and quality.

U- FacUFactortor – A rating that represents the window’s resistance to heat flow and typically falls between 0.20 and 1.20. The lower the U-factor the better the insulating performance.

Solar Heat Gain Coefficient – Generally a numberSolarHeat between 0 and 1, a lower SHGC means that less solar radiation is being admitted through your windows, helping to ease your air conditioner’s job in the summer.

TransmittanceVisible Transmittance – Most Often Displayed as a number between 0 and 1, Visible Transmittance measures the amount of light transmitted through a window.

2. Glass

IMezzoCrossSectionnsulated GlassA combination of two or more panes of glass with hermetically sealed air space between. Argon Gas is a safe, colorless, odorless, nonflammable, nontoxic inert gas that is heavier than air. This insulating gas between the panes of glass counteracts heat/cold conduction. It also helps reduce the noise infiltration – so your home will be more energy-efficient and quieter.  While Krypton Gas is this super – insulating gas is denser than argon and therefore provides better performance properties.

PPG_SpacerSpacer System – An intercept warm edge spacer system is a sealed, one-piece alloy in U-Channel design that creates an effective thermal barrier to reduce conducted heat loss through the window. This system keeps the edges of the glass warmer and reduces condensation problems around the window perimeter than a normal metal spacer.

LowELow- E Glass
– A special type of glass with microscopically thin, undetectable metallic coatings applied to its surface that act as a thermal barrier. Low-E helps reduce heating cooling costs year round.

3. Materials

iStock_000004339204_SmallVinyl Windows
– These are the most affordable windows on the market. They are energy-efficient, long lasting and very low maintenance.

iStock_000059237820_smallAluminum Windows – These windows are still low cost and offer a low maintenance option, but this material is much less energy efficient than other materials.

Macro detail of a 2x4 pine board lumber. 12MP camera.Wood Windows – Wood windows, while energy-efficient, are very high maintenance. They have to be painted or stained on a regular basis.

Texture of un-used fiberglassFiberglass Windows  – While these windows offer the strongest frame, they are more expensive than other options.

iStock_000002693757_SmallComposite Windows – these windows are made from a combination of materials to offer the benefits of all of them, however they are by far the most expensive windows available.

Still have questions about your window purchase? Feel free to contact us at with questions, comments or concerns.


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