Replacement Window Ratings - What They Mean
Windows are rated in a range of categories which measure their energy efficiency. If you are shopping for windows for your home, greater emphasis should be placed on various ratings based on the climate the home is located in. For instance, if you are buying for replacement windows in Phoenix, Arizona, a sunny and warm location, the Solar Heat Gain Coefficient is almost certainly the most essential rating to look at. Other factors, such as the orientation of a window to the sun and any shade that is present ought to be considered.
The US Government's Energy Star program is meant to make it simple for individuals to identify energy efficient products and practices which will save them money and protect the environment. The Energy Star program rates over sixty products, including windows. Energy Star certification makes it simple for consumers to be certain they are getting energy efficient replacement windows.
All Energy Star replacement windows are scored in five categories however Energy Star qualification is determined only on the U-Factor and Solar Heat Gain Coefficient. These ratings are also the categories used to determine if a window qualifies for the IRS Energy Tax Credit.
U-Factor
Calculates the speed of heat transfer and denotes how efficiently a window insulates. The smaller the U-Factor rating, the better a window insulates. The window U-Factor incorporates the thermal attributes of the frame and the glazing.
Solar Heat Gain Coefficient (SHGC)
Measures the solar energy transferred by the window and tells us how well a window inhibits heat caused by the sun. The lower the SHGC, the less solar heat a window transmits.
Visable Transmittance (VT)
Measures the amount of light a window allows through. The higher the Visable Transmittance, the brighter a room will be.
Air Leakage (AL)
Calculates the rate at which air passes through joints in a window. Air Leakage is determined in cubic feet of air that passes through one square foot of window area per minute. The smaller the Air Leakage value, the less air leakage.
Condensation Resistance
Calculates how effectively a window resists water build-up. The greater the Condensation Resistance factor, the less condensation build-up a window permits.
Other Replacement Window Ratings
There are some other ratings which are not included on the NFRC Energy Star label but they are useful and appear on some windows.
Light to Solar Gain
The ratio of Visable Transmittance to Solar Heat Gain Coefficient measures the amount of light that is transmitted without adding heat. A greater number signifies that more light is transmitted without adding heat.
R-Value
R-Value was created as a way to measure the insulation value of something. It measures conductivity and signifies the resistance to heat flow. A high R-Value implies a better insulated window. Most windows today are measured using U-Factor (see above).
Conservatories Gloucester: Gaining Space And Beauty To Your Place
Getting that extra room you want in your home doesn't always come easy and cheap. But I've done a little bit of research and found an alternative way to get that extra room you've always wanted.
Home Interior Decorating Is Utilised By Individuals For Their Home
Home and garden furniture can be made from wicker and wood. Metal and plastic garden furniture can be utilised, but would probably be considered inappropriate to adorn this region of your home.
Cheap Table Lamps Could Continue To Add Fashion And Functionality To Ones Home
When you go shopping for lamps for your home do not forget to look at the cheap table lamps. Major retailers are now offering some very stylish lamps at reasonable prices. The more expensive retailers often have a less expensive section.
Working With Hvac Contractors On A Yearly Basis Can Assist You To Make The Best Use Of Your Hvac Units
You should be dealing with heating and air conditioning contractors on at least an annual basis if you have a HVACs system installed in your home. Regular services are essential to keep the equipment clean and in proper working order to ensure they are operating efficiently.
Wall Candle Sconces - Illuminate The Darker Room With A Latest Wall Candle Sconce
Have you been looking at wall candle sconces? There are many people that want to light up a dark room but are not sure what the best method would be. Wall candle sconces can really change the way that a room looks and feels because of the difference in lighting.
Points To Take Into Account When Getting A House Extension Constructed
If your family is growing, it may be that your existing home is no longer able to meet your family's space requirements. Like if you're expecting another baby on the way, or your children are growing older that they are soon going to need to have their own rooms.
Wall Sconce Lights - What Can I Anticipate As I Light With Wall Sconces?
Are you considering using wall sconce lighting? There are many people that want extra light but they are not sure what kind of lighting they want to put in the place where they are needing light.
Little Information That Will Aid You To Comprehend The Importance Of Heating And Air Conditioning Contractor
If you are looking to install a heating or air conditioning system or perhaps both, you will need a professional heating and air conditioning contractor. How do you go about finding the best one?
Central Heat And Air - Do Not Try To Cut Corners: Talk With Experts So That They Can Suggest You On Choosing The Greatest Methods
Whether you are installing a completely new central heat and air system or upgrading the existing one, it can be tempting to deal with the cheapest contractor you can find.
Related Articles
Partner Links