A portable demountable canopy system is provided including a canopy defined by a rim arranged around an outer periphery of the canopy, the rim forming an open area, and a rollable membrane deployed across the open area; a plurality of poles being attached to the canopy; and counterweight elements present in an amount at least equal to an amount of the poles, each of the counterweight elements along outer sides thereof fitted with at least two fastening elements for receiving a lower end of each pole. Also disclosed is a kit with parts for assembling the system.