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series_hybrid t1_j6hygj9 wrote

Heat rises, you may want to keep the top half insulated if you choose to remove some.

You could also attach a cord or two to the top of the door, which stretch across the garage to a pulley. Then the rope drops down and holds a counter weight.

It only needs to help the door lift up the first half of the lift.

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Sluisifer t1_j6ihhr6 wrote

Counterweights do not work on garage doors. They don't 'weigh' anything when rolled up because they're horizontal.

The whole point of springs is that they vary the return force in proportion to how far the door is lowered. They are engineered balanced systems.

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