If you are concerned about not enough insulation in your attic and you would like to add more yourself, it is an easy job for the homeowner. Of course the correct installation is important…paper side up or down? I thought the correct way was the same whether you live in an area where you use more heat than A/C or vice versa. I discovered I did not understand the difference. To learn how to install insulation correctly, watch this video from This Old House or read the instructions accompanying the video.
Source: This Old House