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What is a U-factor?

U-Factor measures the heat transfer through a window and tells you how well the product insulates. The lower the U-Factor, the greater resistance to heat flow and the better insulation it offers.

What is a Solar Heat Gain Coefficient?

Solar Heat Gain Coefficient (SHGC) tells you how well the window blocks heat caused by sunlight. The lower the SHGC, the less solar heat the window transmits. SHGC is measured on a scale of 0 to 1; values typically range from 0.25 to 0.80.

What is Visible Transmittance?

The Visible Transmittance number indicates the amount of light that passes through the glass (refers to brightness, as opposed to heat). A higher number means a brighter room

1-800-HANSONS Vs. Window World: Numbers Don't Lie!

Our Triple Pane Windows Outperform Window World by More Than 30%*

Money Back Guarantee: A warranty covers only SOME aspects of a product, while a Guarantee covers EVERYTHING. 1-800-HANSONS doesn't offer a Warranty, we offer a guarantee.

Kids-Safe™ Glass: When choosing window glass, insulation isn't the only thing to consider. SAFETY is also an important feature. Why take a chance with your family's safety? Hansons uses Kids-Safe™ Glass in over 90% of its' windows.

IQ Glass: The first ever clear insulation for the home. We believe this is the best glass package for your home.The design changes, break resistance and heat reflectivity of the glass, allows us to fully guarantee the product.

Federal Law now requires all windows to display their energy performance rating given by the National Fenestration Rating Council (NFRC). This is greatfor Hansons windows; our ratings trump the competition. See for yourself - the numbers don't lie!

Not only can you get the best replacement windows from 1-800-HANSONS, but the rest of your home improvement needs as well: Roofing, Siding, Gutters and Gutter Guards. Can Window World say that!

Get a FREE Home Improvement Buyers' Guide (including Window Shopping Checklist) when you schedule an appointment with Hansons.

*When measuring U-factor

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