20″ x 2.5" Lightweight, easily carried on the roof Do not have to move board as often when locking long runs Height is 1” holds the form of joint while tin-knocking w/out scratching

20″ x 2.5" Lightweight, easily carried on the roof Do not have to move board as often when locking long runs Height is 1” holds the form of joint while tin-knocking w/out scratching