D54 – EXTERNAL ROOFTOP WITH DRAINAGE CELL AND BALLAST (IRMA)

D54 External Rooftop With Drainage Cell And Ballast (IRMA) CAD provides instructional detail on waterproofing an external rooftop with ARDEX WeldTec membranes where drainage cell and ballast is installed. Suitable WeldTec membranes for this detail are ARDEX WPM 715, WPM 1000, WPM 1500, and Root Repell.