DiaDrain-40H (310224) Water-retention and flow-delay drainage board for semi-intensive and intensive green roofs and hard-surface pedestrian areas, with a height of 1 1/2", made of recycled high-impact polystyrene (HIPS). Listing Back To Top Design Visualizer Previous Next Design Visualizer CADdetails™ You need to be logged in to view & download files. Login/Register New to CADdetails? Register to enjoy full access to unlimited 3D models, CAD drawings and specifications. It's free! Downloads Product Info About Media CAD PDF DWF DWG Printable CAD VWX DXF Download All Add to Project+ Favorite User Feedback Company Resources Back to top Videos DIADEM Green Roofs Diasafe My Sweet Home - DIADEM Gr… Brochures Jackson National Reading Hospital Online News Updates Support Documents Diadem D-150 Extensive Ve… Diadem D-359 Intensive Ve… Diadem GarDIA-600 Ballast… DiaSafe, Diadem’s Fall Ar…