Windows are rated in various categories which measure their energy efficiency. If you are picking out windows for your home, extra emphasis should be placed on varying ratings based on where the home is located in. For example, if you are purchasing for replacement windows in Phoenix, Arizona, a sunny and warm climate, the Solar Heat Gain Coefficient is almost certainly the most crucial rating to take into consideration. Other factors, such as the orientation of a window to the sun and the amount of shade that is present should certainly be taken into consideration.
The U.S. Government's Energy Star program is designed to make it simple for consumers to identify energy efficient products and practices which will save them money and protect the environment. The Energy Star program scores over sixty products, including windows. Energy Star certification makes it very easy for people to ensure they are getting energy efficient replacement windows.
All Energy Star replacement windows are rated in five different categories however Energy Star qualification is solely based on the U-Factor and Solar Heat Gain Coefficient. These ratings are also the categories utilized to calculate if a window qualifies for the IRS Energy Tax Credit.
U-Factor
Measures the rate of heat transfer and tells us how effectively a window insulates. The smaller the U-Factor rating, the better a window insulates. The window U-Factor includes the thermal attributes of the frame together with the glazing.
Solar Heat Gain Coefficient (SHGC)
Determines the solar energy transmitted by the window and indicates how efficiently a window inhibits heat caused by the sun's energy. The lower the SHGC, the less solar heat a window transmits.
Visable Transmittance (VT)
Determines the amount of light a window permits through. The greater the Visable Transmittance, the more light you see.
Air Leakage (AL)
Measures the speed at which air passes through joints in a window. Air Leakage is calculated in cubic feet of air that passes through one square foot of window area in a minute. The smaller the Air Leakage value, the less air that is permitted to leak.
Condensation Resistance
Measures how well 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 alternative ratings which are not incorporated on the NFRC Energy Star label yet they are helpful and appear on some windows.
Light to Solar Gain
The ratio of Visable Transmittance to Solar Heat Gain Coefficient measures the amount of light transmitted without adding heat. A greater number suggests that more light is transmitted without adding heat.
R-Value
R-Value was formulated as a way to rate the insulation value of something. It calculates conductivity and illustrates the resistance to heat flow. A high R-Value indicates a better insulated window. Most windows today are measured using U-Factor (see above).
A Few Options For Going Green: Cheap, Simple And Environment Friendly Power Source
In the past decade going solar has become a more popular trend that is crucial for our planet and our own future. Solar power provides long term benefits. Not just for the home owner, but the environment too, and consequently it is a worthy endeavor.
Garden Design Ideas Is Utilised By People For Their Property
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.
Upgrade To A Central Heat And Air System Today: A Cost Efficient, Environment Friendly, Useful And Visually Lovely AC System
When you own your home you will have all sorts of responsibilities not just paying the mortgage every month. You will have to ensure that the heating and cooling systems are properly maintained as otherwise you will face higher bills and the chance your system will break down.
Searching For Exactly Where To Buy Cheap Table Lamps Is Certainly Painless!
When darkness falls, human nature causes us to resort back to feelings experienced by earlier peoples. In ancient times, when the sun went down, clearly there was no electricity and no lights to start up to keep the darkness at bay
Important Maintenance Recommendations To Prevent Replacing Your Windows
Proper window maintenance for any window should include steps to clean and maintain the glass as well as the frame. Simple periodic maintenance does not take long yet it can extend the life of your windows significantly.
Conservatories Gloucester: Adding Space And Design To Your Home
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.
Dual Functions Of Heating And Air Conditioning Systems That Could Heat Your House In Winter Season And Keep It Cool In The Summer Time
Heating and air conditioning systems have the dual function of heating your home in winter and keeping it cool in the summer months. They can be fueled by gas, oil and electricity.
Wall Sconce Illumination - What Can I Expect Once I Glow 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.
Heating And Air Con Systems: Several Recommendations To Pick The Greatest Option For Your Particular Requirements.
There are many different types of central heating and air conditioning systems. The right one for you will depend on where your property is situated i.e. what type of weather conditions you get, the size of your home and your own personal requirements I.e. the size of your family.
