Ram-Flash 327 HDR, uncured Neoprene flashings have been used with ram-Tough 250 for more than 2 decades. The 60 mil neoprene sheet is set in RT250 that has been applied to the deck and wall. An additional coating of RT250 is applied over the ram-327. The flashing is secured in place with a termination bar and then counterflashed. The RT250 flashing system now offers three membranes, actually triple protection in one of the most critical areas of the roof.