There are many lubricants out there but many garage door experts suggest using WD-40 (or similar light weight oil) twice a year to keep garage doors in working shape. All the moving parts of the door should be lubricated, including the hinges, the springs and the rollers. A bead of oil across the top of the springs will give a nice coating, and spraying the rollers is most effective. Also, it’s a good idea to check your garage door hardware for loose screws, nuts and bolts as you lubricate.
Instead, try other methods that might break the frozen connection between the door and the floor. For example, you can use a heat gun or hair dryer to melt the ice and free the door. Standard de-icing products can also work. And if you are careful not to damage the door or the seal on the bottom of the door, you can use a flat shovel or similar tool to chip away at the ice.
The torsion springs on steel rolling doors work the same way as other torsion springs in the garage door industry. When the door is closed, the spring is wound. The spring is secured to a spring anchor bracket on one end and to the shaft on the other. When the steel rolling door opens, the spring in the barrel supports most of the door weight. The remainder of this weight is lifted by the chain hoist or the operator.