Type I is a medium-duty dimpled core, bonded to a single layer of non-woven filter fabric, with a 9 gallons/min./sq. ft flow rate and a .25" thickness.
Type I is designed for light commercial and residential vertical applications of more than 20 feet as part of a composite drainage system. Roll size 4 x 50, 200 sq. ft./roll.
Last Updated over 10 years
