The two best ways to achieve the air gap?
1. Install No-Tear directly underneath the rafters, running them ACROSS the rafters, instead of with them (up and down). This will save you a lot of time with cutting and stapling. 2. Install No-Tear between the rafters, but still 1″ – 2″ away from the roof. This is useful if you are going to finish your attic off later. IMPORTANT: If you install No-Tear on your roof, be sure to leave a 3″ – 6″ gap at the peak and down at the eaves (where the roof and floor meet). This will allow good ventilation behind the No-Tear.