This expanding foam closure expands from 1/4” to 1” and from 3/8” to 1 1/2”, allowing it to fill any shaped gap in the construction of metal buildings, doors and windows, concrete, wood and more. It is adaptable to most roof panels, including hips and valleys. Highly resistant to bugs and vermin, it maintains its seal in heat and cold and will not leach out or stain. Comes in a 19'8" roll.