Liftmaster 8355 Belt Drive Garage Door Opener - Garage doors come in several shapes and sizes. Their functions vary from fundamental security of an area to concealment that is decorative. Most doors might be broken down into groups or several basic styles. Typical modern garage doors for residential uses tend to be mostly of the overhead sectional variety. That style of the door comes in several configurations, materials, amounts of insulation, along with a wide selection of look possibilities.
They're available as a prefabricated kit or assembled as a custom design to complement the decor of any building. Commercial warehouse kind installations often dictate higher security demands. A good choice for this security sort of door is the "roll-up" design that resembles a roll top desk sort of door. This door can be fabricated using various materials that can be as solid as the walls that were abutting, making forced entry through this opening very difficult.
In the past, the biggest concern with managing an overhead garage door was the possible hazards related to the springs useful for balancing the door weight. Pre mid-1960's garage door installations commonly relied upon a set of stretched (tensioned) springs to aid the operation of the garage door pivoting hinges. Unloading (releasing) of the stored spring energy occurred as the door was opened to the horizontal overhead situation.
Some of the very most dangerous aspects of these spring systems was that after a period of time, frequently without any care or review, the points of attachment of these springs would corrode or become weak. This weakening of points or the springs of attachment would frequently lead to an inadvertent failure fling that is explosive the broken spring parts across the garage, embed the steel or spring parts to the garage walls, other items in the path of travel or cars.