ROLLBLOK, a further step ahead after the great breakthrough brought in by Rollout Maxxy in the roll-aside insect screen systems for doors. The new ROLLBLOCK roll-aside door now carries an improved bottom chain which allows a better retention of the mesh. The perfect combination between the flat mesh of the roll-aside doors and the caterpillar chain already used for the Plissé doors, confirm all the benefits already shown by Rollout Maxxy: