Products - Roof Drainage ACO Gravity drainageApplications:Small roof areas, < 150 m² per gullyPlenty of spaceShort collecting lineACO Siphonic drainageApplications:Large roof areas, ≥ 150 m² per gullySufficient drop 4,200 mm between roof and pipe systemWhere installation options are restricted under the roof (no change of gradient possible)For long collecting linesACO Parking deck drainageApplications:Roof parking zonesACO Drainpipes and fittingsACO pipeStainless steel 1.4301 (AISI 304) and 1.4404 (AISI 316)Push-fit system for quick assembly GM-X pipeGalvanised steel SM-X pipeCast iron pipes