Energy Efficient Windows + Doors
Windows and doors play an important role in a home’s energy efficiency. They help prevent drafts and can help insulate your home. Find out some of the top reasons to add energy efficient windows and doors, what makes windows energy efficient, and the savings energy efficient windows and doors can provide.1
Top Reasons to Add Energy Efficient Windows + Doors
The top reason why people add energy efficient windows and doors is the energy savings they can bring. Energy efficient windows and doors can reduce energy bills.1
Window and patio door glass feature microscopic metallic coatings for home energy efficiency. Double pane windows and patio doors have a non-toxic gas fill between the panes that provide insulation.
Reducing your energy use also limits your carbon footprint to help the environment.
What are Energy Efficient Windows?
Energy efficient windows are built with the right materials and glass to reduce the amount of solar heat that enters a home in summer and retain heat in winter. Different types of glass coatings are suited for different climates. Marvin Replacement has four types of glass coating options: Low E1, Low E2, Low E3, and Low E3/ERS for home energy efficiency. When comparing fiberglass vs. vinyl window materials, it’s important to understand each materials’ ability to limit heat transfer from the outside.
How to Know if You Need Replacement Windows?
Knowing if you need replacement windows or a patio door can involve noticing damage, an increase in your energy bill, drafty windows or leaks, if they’ve become difficult to open and close, or if you see condensation between window panes. Replacing your windows or patio doors can improve your home’s energy efficiency and your home’s aesthetics.
Save Money with an Energy Efficient Home
The National Fenestration Rating Council (NFRC) estimates the average American household spends $1,500-$2,500 on energy bills annually; 45% of that is for heating and cooling. To find the latest tax credit updates, visit the ENERGY STAR® website. Here is Marvin Manufacturers’ Certification Statement.
ENERGY STAR estimates a homeowner can save between $493 and $568 a year on average, if they’re replacing single pane windows with ENERGY STAR-certified windows and between $253 and $373 when replacing clear double pane windows.1
ENERGY STAR-certified windows meet a set of criteria tested by the NFRC. ENERGY STAR qualification uses U-factor U-factor U-Factor is a measure of how well a window retains heat in a home. A higher U-Factor allows more heat to escape a home and a lower number will allow less heat to transfer out of a home. Solar Heat Gain Coefficient Solar Heat Gain Coefficient measures how much heat from the sun enters a home. A lower SHGC number allows less heat.
U-Factor is a measure of how well a window retains heat in a home. A higher U-Factor allows more heat to escape a home and a lower number will allow less heat to transfer out of a home.GO TO GLOSSARY
Solar Heat Gain Coefficient
Solar Heat Gain Coefficient measures how much heat from the sun enters a home. A lower SHGC number allows less heat.GO TO GLOSSARY
How to Choose Energy Efficient Windows
Glass coatings, the number of glass panes, and a window’s gas fill can help you choose energy efficient windows. Ratings, like U-factor, Solar Heat Gain Coefficient, and Visible Transmittance Visible Transmittance Visible transmittance is the measure of visible light that will pass through a window. A higher VT number maximizes daylight.
Visible transmittance is the measure of visible light that will pass through a window. A higher VT number maximizes daylight.GO TO GLOSSARY
Glass coatings play an important role in a home’s energy efficiency. Different climates require specific coatings to perform the best. Marvin Replacement’s Low E1 coating works well in colder climates because it allows more heat into a home while Low E3 works well in warmer climates because it can reject solar heat. Low E3/ERS can provide maximum efficiency year-round in all climates.
One way to quickly learn the energy efficiency of windows is to look up ENERGY STAR performance grade, U-factor, Solar Heat Gain Coefficient (SHGC) and Visible Transmittance (VT).
Efficiency in All Climates
Finding the best windows in hot or cold climates means picking the right glass coatings for your climate zone. Marvin Replacement’s Low E2 glass is 56% more efficient in summer and 49% more energy efficient in the winter. Low E3 glass is 70% more energy efficient in summer and 49% more energy efficient in winter.2
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Upgrade Your View with Marvin Replacement
Learn more about Marvin Replacement glass options and energy efficient replacement windows. Start improving your living by scheduling a free, no hassle design consultation with Marvin Replacement today!
1Source 2023: D+R International in support of ENERGY STAR. Savings estimates are based on EnergyPlus 9.5 modeling for typical homes in 132 U.S. cities. Ranges are based on the average savings among homes in modeled cities. Actual savings will vary based on local climate conditions, utility rates, and individual home characteristics.
2Values are based on comparison of Marvin Replacement double-hung window U-Factor for clear dual pane glass non-metal frame default values from the 2018 International Energy Conservation Code “Glazed Fenestration” Default Tables.