An insulated garage door is quieter than a non-insulated garage door. If you have lightweight doors without insulation, they have an inclination to make plenty of noise. The cause behind it is because the additional insulation pads most of the vibration and helps scale back the noise coming from outside the door, together with street traffic.

Is it worth insulating a garage roof?

Garage Door Insulation Kits: The Best Way to Keep Your Garage Warm in the Winter…