The simplest way to insulate a garage door is with a kit containing either vinyl- or foil-faced batts or foil-faced rigid foam boards.

Insulation is defined as a material used to insulate something, especially a building. Basically, insulation is material used that reduces heat loss or heat gain by providing a barrier between the inside of your home and the significantly different temperature outside.

A roll of insulation costs about $0.80 to $1.00 per square foot. The price fluctuates depending on the brand, material, thickness and R-value of the insulation.

Insulation in your home provides resistance to heat flow and lowers your heating and cooling costs. Properly insulating your home not only reduces heating and cooling costs, but also improves comfort.

The average cost to insulate an attic is between $1 and $7 per square foot. This equates to a typical price range of up to $1,500 per project including labor and materials. For attics with smaller square footage, costs can be as low as $500 while insulation for larger attics can cost up to $4,000.