Energy Efficiency

Increasing your home’s energy efficiency allows you to save on your energy bills and lower your carbon footprint – without sacrificing comfort.

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

With double or triple-pane glass, low-E coatings, and eco-friendly vinyl frames, our windows are designed to be as energy-efficient as they are beautiful. Energy-efficient windows, doors, and siding help keep heated and cooled air inside your home where it belongs. This allows your HVAC system to work more efficiently, reducing the amount of greenhouse gases your home releases into the environment and helping you save money on your energy bills every month.

If you’ve noticed that your energy bills are higher than they have been in the past and there’s not an obvious reason for the increase, your windows may be forcing your HVAC system to work harder. Window World customers report saving money on their energy bills from the first month.

See How Much You Could Be Saving

Table of Contents

Understanding Energy Efficiency

Windows
Doors
Siding

Low-E Glass

Low-E glass is brilliantly engineered to minimize the amount of UV rays and unwanted temperatures into your home.

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 with a complex array of compartments to help trap and repel unwanted weather.

Innovative Weatherstripping

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

Insulated Core

Insulated polyurethane core provides an additional thermal barrier.

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 that allow light in but keep the elements out.

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.

Climate Requirements

Interested in Becoming ENERGY STAR® Certified?

ENERGY STAR is a government-sanctioned label signifying that the product bearing the label has been tested and verified to provide energy and cost-savings for the consumer. Explore the information below to learn what’s required to become ENERGY STAR-certified and what being energy-efficient looks like in your region.

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 is performing. 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 Pittsburgh is located in ENERGY STAR’s Northern Climate category. To maintain certification here, our windows and doors must maintain a U-Value of ≤ .27 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.

U-Factor

U-factor measures the rate of heat transfer and how well a window insulates. It is measured on a scale from 0.20 to 1.20. The lower the u-factor, the more effective the window is at insulating.

R-Value

R-value refers to a building material’s insulation level. Each region of the US has an energy-efficient r-value range for windows based on that area’s climate.

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 a an ideal agent for year-round comfort.


Make Your Home Energy Efficient

When it comes to making the switch to energy-efficient products, the payoff is both significant and tangible. The benefits are increased comfort in your home with more consistent interior temperatures, lower energy bills, and a decreased carbon footprint. That’s right, energy-efficient products are beneficial to you and the planet.

If you’re ready to see the difference and enjoy being comfortable in your home again, contact the professionals at Window World of Pittsburgh 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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