2. The safety sensors may need adjustment or realignment. Near the bottom of the door track on both sides are electronic eyes that require a clear line of view between them. If the sightlines are clear between the eyes, the door will close smoothly all the way to the floor. However, if anything is blocking the sightline, or if the brackets holding the electronic eyes are out of alignment, the door will fail to descend all the way. In most cases, the door will stop or reverse, and lights will flash to tell you there is a problem. 


The first safety feature is an automatic reversal system within the garage door opener itself. If the door is closing and an obstruction or solid object is detected – usually anything that slows or stops the door’s normal operation – the door should automatically stop and return to the open position. The U.S Consumer Product Safety Commission has required a reversing safety feature on all new garage door openers manufactured since 1991.
Automatic doors require not only the installation of a heavy door, but the motor and cables as well. Automatic doors are much more common now because of their convenience, but in a case such as the heavy wood door, they are a necessity. A strong motor is required to pull up a heavy door. However, automatic doors are not without their faults -- they quickly become a manual door when the power goes out.
Door styles - in addition to the styles just mentioned, it is important to also consider additional features such as windows across the top of the door to provide light inside of the garage, the use of steel or wood frames to give decorative doors added security and stability, and insulation which can reduce energy costs in the attached garage by an impressive 15 to 20%; and

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