000. Part No.
310203010. Product Name
DiaDrain-25H
020. Short Description
Flow-delay retention and drainage board.
070. Product Description
DD-25H is a 1” height flow-delay retention and drainage board used on extensive and semi-intensive greenroofs and hard-surface pedestrian areas. The product is composed of recycled high impact polystyrene (HIPS).
040. Typical Photo
080. Application
DiaDrain-25H is designed for continuous drainage of flat- and low slope roofs, including vegetated areas and hard-surface pedestrian areas of extensive and semi-intensive vegetative roofs. The "stepped barrier" design of DD-25H causes the retention cups to fill with water in a similar fashion to filling an ice cube tray, enabling their flow-delay and retention functions. DD-25H boards are lain overlapping one row of cups with the adjacent board, starting at the bottom of the roof slope and moving upward.
090. Frequently Asked Questions
100. Benefits