Garage doors are getting more importance now than ever before. It is accountable for 30% of the exterior portion of a home. So it definitely needs consideration. Garage is no longer just used for parking your automobile it is used for many activities. To facilitate the use of this exterior space, it is also important to maintain a constant, comfortable temperature in this space. You can do that by increasing the insulation of garage doors value and energy efficiency. Knowing your needs select a door with good insulating qualities like having a door with R- value of 3 in moderate to temperate climates and R- value of 10 in harsher climates.