
Key Takeaways
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What Are Impact Windows?
Impact windows are designed to protect homes from extreme weather. They are built with strong frames and laminated glass that stays intact even when shattered. This design prevents dangerous debris from entering your home during a storm.
In addition to weather protection, these windows enhance security, reduce noise, block harmful UV rays, and improve insulation. Because of these benefits, homeowners often ask: “Are impact windows Energy Star rated?” Understanding their design and materials helps answer this question.
Materials such as vinyl, aluminum, fiberglass, and wood frames contribute to performance. Laminated glass adds insulation while resisting breakage. These construction details affect whether impact windows qualify for Energy Star certification.
What is an Energy Star Rating?
What Is an Energy Star Rating?
Energy Star is a trusted symbol of energy efficiency. Created by the U.S. Environmental Protection Agency in 1992, the program helps consumers choose products that lower energy use and save money.
An Energy Star label means a product meets strict guidelines for energy performance. For windows, this rating indicates strong insulation and thermal efficiency. Energy Star-rated windows can cut household energy bills by up to 13%.
What Are the Criteria for Energy Star Rating?
To answer “Are impact windows Energy Star rated?” you must understand the criteria. Several factors determine a window’s performance.
U-Factor: Measures heat transfer. Lower numbers mean better insulation and reduced energy costs.
Solar Heat Gain Coefficient (SHGC): Shows how much solar radiation enters. Lower SHGC is ideal for warm climates.
Air Leakage: Indicates drafts through joints. Lower air leakage improves comfort and efficiency.
Visible Transmittance (VT): Measures how much light enters. Higher VT reduces the need for artificial lighting.
Condensation Resistance (CR): Rates the window’s ability to resist condensation, which improves indoor air quality.

How to Check if Your Impact Windows Are Energy Star Rated
There are several ways to confirm certification:
Check the Label – Look for the Energy Star sticker on the frame or glass.
Manufacturer Specifications – Review product brochures or company websites.
Energy Performance Ratings – Compare NFRC ratings against Energy Star requirements.
Online Database – Use the Energy Star product finder to search by brand and model.
Professional Assessment – Hire an energy auditor or installer for expert confirmation.

What Materials Make Impact Windows Energy-Efficient?
Energy efficiency depends on construction and materials.
Multiple Glass Panes: Double or triple-pane designs improve insulation.
Low-E Coating: Reflects heat while allowing natural light inside.
Gas Fill: Argon or krypton gas between panes enhances insulation.
Frame Materials: Fiberglass and vinyl offer excellent performance. Composite wood frames also insulate well, while aluminum conducts heat and is less efficient.

Frequently Asked Questions
How can Energy Star-rated windows improve comfort?
They regulate indoor temperatures, reduce drafts, and cut down on hot or cold spots.
Do they qualify for rebates or tax credits?
Yes. Federal tax credits and local rebates often apply to Energy Star-rated windows.
Do criteria vary by climate?
Yes. Colder regions require a low U-factor, while warmer zones benefit from a low SHGC.
What is their lifespan?
These windows last longer than non-rated versions because they are built with durable, high-quality materials.

Choose Prestige Windows and Doors for Energy Star Rated Impact Windows
Prestige Windows and Doors provides Miami homeowners with premium Energy Star-rated impact windows. Our products protect your home from severe storms while improving efficiency and lowering utility bills.
We also handle professional installation, ensuring long-term performance and durability. Homeowners in Miami trust us for expert service and industry-leading products.
Contact Prestige Windows and Doors today at (866)-466-5094 or fill out our online form to explore our full range of Energy Star-rated impact windows and see why we are the preferred choice in Miami, FL.