Aluminum alloy rolling doors are widely used on shops and small commercial units. They're light, rust-free, and look clean. Here's a rundown of the profile types and how to install them.
Profile Types
- Hollow aluminum slat: Single-wall extrusion, 0.8–1.2mm wall thickness. Light and affordable. Good for small openings where security isn't the main concern.
- Foam-filled aluminum slat: Polyurethane foam inside the hollow cavity. Adds rigidity, reduces noise, and provides some thermal insulation.
- Vented aluminum slat: Small perforations for airflow. Used in parking garages and areas that need ventilation.
- Vision-panel aluminum slat: Transparent polycarbonate insert in some slats. Creates a window row for showrooms that want visibility when closed.
- Double-skin aluminum slat: Two aluminum faces with an air gap or insulation. Stronger, better insulated, less prone to denting. Used on larger openings.
Installation Method
- Measure the opening at multiple points. For width, subtract 10–15mm for clearance. For height, add the roll-up space above.
- Mark guide rail positions. Rails must be absolutely vertical — use a plumb line for taller doors.
- Fix the guide rails with M8 or M10 expansion bolts every 400–500mm. For brick walls, use chemical anchors.
- Assemble the barrel and curtain. Connect the barrel tube to end plates with bearings, attach the curtain, and wind it onto the barrel.
- Mount the barrel assembly above the opening. Slide the curtain ends into the guide rails and bolt the end plates to the brackets.
- Install the motor and connect the drive chain or direct coupling. Wire the motor to the control box.
- Install the housing to cover the barrel and curtain roll.
- Test: run the door up and down, adjust limit switches, check for smooth travel, and lubricate moving parts.