DOUBLE-SIDED TAPE 32: 1-1/2 inch x 60 Yards - Sold by Case of 32 Rolls (1920 yards total).
Serves 16000 sq. ft. of insulation.
Don't need that much? Information on 4 roll sets.
Keeps insulation from blowing during install. Also helps attach insulation to surface and seal seams. Tape seams to improve insulation performance.