A garage door is a large door on a garage which can either be opened both manually and by an opener. Although of many designs, most units are sectional, upward-acting, and self-storing. These doors are typically large enough to allow passage / storage of automobiles and/or trucks. The typical one consists of several panels hinged together that roll along a system of tracks which are guided by several rollers; the weight being balanced by either a torsion spring system or a pair of extension springs. Garage doors can be made out of many materials, but steel, aluminum, wood, and vinyl polyethylene tend to surface as the most popular. A common material is that of a roll formed steel sheet molded to look like a raised wooden panel. Steel ones are available in un-insulated, insulated, and double skin steel. These are quickly becoming one of the most prevalent models due to their weight, durability, and multitude of designs. The balance of the unit should be checked monthly. One should be able to raise and lower the door without any resistance, seeing that it rolls smoothly along the tracks while being able to remain stationary at any point. Typically, a door that does not pass these tests will be considered out of balance and should be adjusted. However, it is recommended that all adjustments or repairs be made by trained technician. In addition, it is recommended that all moving parts be lubricated at least once a month. Tracks should never be lubricated since the lubricant will only create a sticky surface on the track that can attract additional dirt and grime resisting smooth operation. Torsion springs should be lubricated with a light coat of oil to reduce the friction between the coils and to eliminate any noises and to even increase the life of the springs. These doors with extension springs would normally be installed with a restraint cable running through the center. This is necessary due to the fact that springs will weaken from the fatigue and stress exerted on the steel wire from opening and closing repeatedly. If an extension spring breaks, it can fatally injure someone present in the garage or damage the adjacent property. The cable running through the center restrains the spring in the event of failure. Most overhead units are equipped with torsion springs, which do not require safety restraint cables since the torsion shaft running through the springs restrains it if it breaks. Torsion ones are superior to extension ones as they are easier to fine tune and balance the weight of the door more evenly.As technology and design continue to evolve, one can only speculate what the future holds for these simple machines. Excellent garage doors in different materials and styles that are durable are available for your garage. Choose the right one and get it fixed with the help of experienced technicians. To know more, visit http://www.garagedoorstn.com
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