Energy Efficiency

Save money, improve your home’s value, and reduce your carbon footprint when you choose to use energy-efficient products for your home.

Never Sacrifice Your Comfort
Boost Your Home's Energy Efficiency Today!

Table of Contents

Understanding Energy Efficiency

The Technology

Science Behind The Savings

Windows
Doors
Siding

Low-E Glass

Low-E glass is brilliantly engineered to block most UV rays out so your home stays at a comfortable temperature each season.

Warm-Edge Spacer

Intercept™ warm-edge spacer insulates the exterior edges of a sealed unit and can tack on 5% savings on monthly energy costs.

Vinyl Framing

Vinyl window frames are constructed to deliver excellent thermal insulation while sealing out drafts and unwanted weather.

Innovative Weatherstripping

Airtight weatherstripping seals the sides, top and bottom frames of your door to prevent air infiltration.

Insulated Core

An insulated polyurethane core provides an additional thermal barrier for better insulation.

Sturdy Frames

Composite frames resist rotting, rusting and warping to withstand constant exposure to the elements.

Energy-Saving Door Lites

Decorative and ENERGY STAR-compliant door lites are an integral part in a door system’s seal and thermal performance.

Insulated Structure

Built with rigid foam insulation to reduce energy loss and reinforce the siding for smoothness and straight lines.

Energy-Saving Barriers

High-density insulation to minimize outdoor noise for a quieter indoor ambiance and loss of wanted heat or air.

Built to Last

Fully rolled over, double-thick nail hem anchors panels to the wall; tested to withstand harsh weather.

ENERGYSTAR® Qualified SolarZone™ Insulated Glass Package

Since 80% of a window is glass, substantial heating and cooling savings come from improved glass performance.

  • Our combination of UV-filtering Low-E Glass (LG), insulating argon gas and the Intercept™ warm-edge spacer system creates significant energy efficiency.
  • In winter, a warmer glass temperature is maintained, increasing the R-value by an additional 104%.
  • In summer, a 48% reduction in solar heat gain helps cut air conditioning costs.

How does the Intercept™ spacer system work?

  • Its one-piece metal alloy, U-channel design creates an effective thermal barrier to help reduce conducted heat loss.
  • Its sealed one-piece design makes it stronger and better at retaining insulating gas than many conventional designs.

How do Intercept™ spacers add to room comfort?

  • They keep the edges of the window glass warmer, so your home feels more comfortable in winter.
  • The temperature difference between the edge of an insulating glass unit with an ordinary spacer, and one with an Intercept™ spacer system can be dramatic.

How do Intercept™ spacers help windows last longer?

  • LG units expand and contract with temperature changes.
  • In conventional insulating glass units, the sealant holding the unit together takes the stress of this flexing and can cause seal failure and insulating gas loss.
  • In an Intercept™ LG. unit, the spacer flexes instead of the sealant, so it resists spacer movement and premature sealant failure.

Climate Requirements

Interested in Becoming ENERGY STAR® Certified?

ENERGY STAR is a government-sanctioned symbol for energy efficiency, credibility, sustainability and cost-savings for the consumer. Window World offers many ENERGY STAR® qualified glass packages. Explore the requirements to become ENERGY STAR-certified below and see what it looks like in your region of the country.

U-Value
R-Value
Your Climate

U-Factor Requirements

U-Factor measures the rate at which heat flows through an object. The lower your U-value, the less heat your windows allow through them.

  • Northern: ≤ .27
  • North-Central: ≤ .30
  • South-Central: ≤ .30
  • Southern: ≤ .40

R-Value Requirements

R-Value determines how well the insulation inside your window performs. The higher your R-value, the better insulated your window is.

  • Northern: 13 – 21
  • North-Central: 13 – 21
  • South-Central: 13 – 21
  • Southern: 13 – 21

Why You Need A High-Performing Insulated Product

Window World of Upper Cumberland is located in ENERGY STAR’s North-Central Climate category. To maintain certification here, our windows and doors must maintain a U-Value of ≤ .30 and an R-Factor from 13 to 21.


Glossary Of Terms

Energy Efficiency Terms You Need To Know

Low-E Glass

Low-E glass is a type of glass that has been treated with a microscopic, metallic coating designed to filter certain types of light into your home. The glass blocks heat gain from the sun’s reflected rays in warmer months and allows warmth from the sun’s shorter rays to flow into your home during cooler seasons.

Warm-Edge Spacer System

Our Intercept™ warm-edge spacer system is a new-age technology used to extend the shelf-life of window glass by reducing condensation build-up and edge-to-glass temperatures. Designed to seal in escaping heat, this spacer system is the most effective of its kind.

Argon Gas

Argon is a colorless, odorless and nonreactive insulating property with extremely high density and extremely low thermal conductivity, making it an ideal agent for year-round comfort.


Make Your Home Energy-Efficient

Making your home energy efficient is a smart investment into your home. The payoff is not only significant, but also tangible. You’ll reap the benefits in comfortability and cost, as energy-efficient products pay for themselves time and time again.

If you’re ready to see the difference and enjoy being comfortable in your home again, contact the professionals at Window World today. We are happy to provide you with a free in-home estimate and answer any questions you may have about energy efficiency!

Schedule Your Free In-Home Estimate Today.

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