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Aurelien Voletta Garage Door December 09, 2017 05:59:01
In contrast to an overhead type of garage door be it sectional or single panel roll up doors have a totally different type of operating system. When these doors are used they can be concealed in an overhead or under mounted trough. These doors operate similarly to a roll top desk door except for how they are stored when not in the closed position. They normally coil as they are retracted and require significant gear trains to reduce the effort required to move these doors up and down into position. Often the forces needed to move these roll up doors require a reduction type of transmission that allows a very heavy door to be operated effortlessly. These doors can be chain driven either manually or can be automated using electric motors. Roll up doors require more frequent evaluation and servicing than a standard overhead garage door. The tracks that are mounted vertically on both sides of the garage opening need maintenance and cleaning more frequently and are often blocked by foreign obstructions or damaged by collision of some type. These roll up doors are often held open by some type of ratcheting action. Proper balancing of these doors is often more important than an overhead type of door as the weight of these type of doors is normally much greater than an overhead door.
Garage doors can be operated manually (by hand) as well as automatically (by power assisted motor). In both cases the proper operation of the garage door is determined by the proper balancing of the garage door weight springs and related component hardware. An automatic power assisted motor cannot overcome an improperly balanced garage door. The weight of all garage doors is normally deceptive. Due to the fact that a properly functioning door appears easy to open and close many users do not realize the combined overall weight until springs fail to assist the door in its operation. In all cases regardless of the type of garage door the entire system of hinges track hardware and door opener work as a team. Problems with misalignment shifting or jamming can lead to problematic operation of a door. Counter forces imparted to a garage door not engineered into the components can lead to injury. Inappropriate maintenance or complete lack of maintenance has lead to severe bodily injuries. Forcing the operation of a garage door when one or more components have become damaged or broken has lead to serious bodily injuries. In all cases maintenance is a crucial and important aspect of proper operation of all door systems.