HG 3652 - 3.4” Blue Roof SDD Board
Our 3.4” Blue Roof Stormwater Discharge Delay (SDD) Board integrates with raised roof drains to provide water storage and stormwater discharge delay.
Specific to this product, it:
is a lightweight, sub-surface structural drainage module used where a high capture and discharge rate of water and high compressive strength is required
has 95% internal void volume that allows for a large water retention capacity
significantly reduces daily irrigation needs
is available with special capillary columns for vertical water transport between the reservoir and vegetation layers