Multi-directional drainage layer. Used primarily in Bauder Blue Roof Systems. 

Designed to hold stormwater during severe rain events. The product is over 95% void. It has excellent compressive strength for use under green roofs and hard landscaping surfaces. Attenuation Cell 100 is laid on a protection layer above the completed waterproofing to provide continuous drainage within hard and soft landscaping. The Cross Connectors connect the cells together horizontally, the Shear connectors connect two layers of cells should they be required.