Brush away snow and puddles often to prevent the weather stripping from becoming damaged.
Garage door stops opening cold.
If the garage door still only opens halfway the problem is with the door.
If this is the reason your garage door is not functioning properly the lubricant must be applied.
If the door opens smoothly by hand the problem is with the opener.
Try to lift the garage door by hand.
In cold temperature the space between molecules reduces making the metal shrinks.
In a typical situation the motor for your garage door opener should stop running once the door has closed.
Then as you raise the door the strip peels and you lose the proper sealing that insulates the garage s interior.
Another reason that your garage door won t open all the way in cold weather is probably that the metal has contracted.
When water freezes near a closed garage door it can cause the weather stripping to stick to the ground.