Profile: Guardian Industrial Doors Ltd. designs, manufactures, and installs a range of industrial doors, fire shutters, energy efficient sectional doors and ancillary equipment. The thermal break industrial is a 3 phase electrically operated heavy duty insulated roller shutter door. This insulated roller shutter is accredited to all the current machinery directives, and is a low maintenance, insulated, economical, safe and secure shutter door suitable for frequent and automatic operation in industrial, commercial, and agricultural environments. The ALU sectional door is of multi-partition glazed design. The partitions, or fields, can be in-filled with various materials that are either opaque, partially transparent or fully transparent, offering maximum functionality and adequate scope for creative accents.