Hometech Windows and Doors Inc A Guide To Window Replacement - Another Great Home | Page 7

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The Essence Of The U-Factor
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Simply put, it is just the rate at which a window or door conducts
nonsolar heat. A lower number of the U-factor in the windows and
doors will result in higher energy performance. This means you
must take out time to check up on this important feature before
purchasing a window or door next time.
Knowing The Solar Heat Gain Coefficient Of The Materials
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Apart from the U-factor, another important feature to consider is
the solar heat gain coefficient of the windows and doors. It is
essential because it helps to determine the amount of solar
radiation coming into the house. If the solar h eat gain coefficient is
low, it simply means that the amount of solar radiation entering
the home is also low. This will also be beneficial for the family
especially during the periods when the climate is pretty warm like
summer. On the flip side of things, a higher solar heat gain
coefficient will only result in an increased amount of heat that is
released into the home. This heat will help to keep members of the
household warm during the winter.