When choosing a garage door, there are two important things to look for, in addition to the design of your choice. First, be certain you are buying an insulated door. For example, a two-inch-thick door filled with insulation will significantly reduce the heat exchange between the outside air and the air inside the garage. This is important not only for regulating temperature inside the garage, but also for reducing the work of your furnace or air conditioner. An attached garage shares at least one wall with the interior of your house. Reducing the temperature change in your garage will also reduce heat exchange through the shared wall, making your home more energy efficient. Second, a tight-sealing door will reduce air exchange and it will reduce the opportunity for someone to break into your garage and have access to your home. It will also reduce the risk of a child getting his or her fingers caught when the door is opening or closing

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