The tech that serviced your door must not understand simple mechanics. The tracks do not move, so they do not need to be lubricated. All that does is make a mess. The rollers and hinges DO move, so it is logical to lubricate them, at the hinge barrel or pivot point, and in the little area near the stem of the rollers where you can see the bearings. Adding a bit of lube to the torsion spring also cuts down on the friction between the coils and makes the spring glide easier. However, too much will make it spritz out lube as the door opens and closes, and that it less than desirable. Same thing for pulleys on an extension spring door.
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Extension spring systems should always be restrained by a safety cable that runs through the middle of the spring, tying off to a solid point at the rear and front of the horizontal door track. Extension springs represent a hazard to bystanders when a spring, pulley, or cable breaks under tension. Metal parts from extension spring systems can suddenly be launched.
Roller doors ("Sheet Doors"-USA) are usually constructed of corrugated steel. They evolved from cover window and door coverings. Other materials can be used (e.g.; transparent corrugated fibreglass) where strong impact resistance is not required. Corrugations give the door strength against impacts. A typical single car garage roller door has a preloaded spring inside the rolling mechanism. The spring reduces the effort required to open the door. Larger roller doors in commercial premises are not sprung (except USA) and use a manual pulley and chain system or a geared motor to raise and lower (roll up and roll down) the door. Roller doors cannot be effectively insulated.
"Nathan was courteous and professional. He arrived on time and installed the garage door opener with no probelms. He tuned up our old garage door opener and installed it on our third car garage. He also added the new garage door opener to our cars for home link. I will call on Nathan for all my garage/ garage door opener needs and recommend him to my friends and neighbors."
They sell insulation kits at the local big box hardware store and I cringe every time I see them. The box weighs about 15 pounds, which doesn't sound like a lot. It is definitely enough to un-balance a garage door. The springs are calibrated for the weight of the door, and adding weight makes the door "heavy" for the springs. This means that if you pull an operator disconnect handle when the door is in the open position, the door is likely to descend much more quickly than you anticipate. People have been hurt when a garage door came down on them and the momentum knocked them over. Only add weight if the door springs can be re-torqued or replaced with springs of the proper pull.
It is precisely on those coldest days of the year when you most need and appreciate the convenience of opening and closing your garage door quickly. Sadly, that's exactly the kind of day when moisture and cold can conspire to make this difficult. Garage doors can and do freeze to the garage floor. Sometimes it is just a minor icy connection between the two that can be broken when you hit the opener button. If the door refuses to budge on the first attempt, though, resist the urge to keep banging on the automatic opener button. This is likely to cause a more serious problem with the garage door opener—including, but not limited to, stripped gears, broken springs, and a burned-out motor on the opener.
Lower the door and dismantle it by removing the hardware. Lower a double door by recruiting at least two helpers to help with the weight, and place a 2×4 block under the door to prevent smashing a foot or finger when it’s lowered. Remove the sections one at a time by disconnecting the rollers and brackets. If you have windows, tape them to help control flying shards if they break. Then remove the old roller tracks and remaining hardware.
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