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Façade panel

Key points

  • Single skin self-supporting panels with tongue and groove joint.
  • Narrow aspect ratio – length up to a nominal 4m, width up to 300mm.
  • Suitable for flat or gently curved façades and soffits.
  • Panels are normally installed in either a horizontal or vertical direction.
  • Uses 1mm thick elZinc®.
  • Installed top to bottom.
  • System weight 8 to 11kg/m2 (zinc only).

Basic system information

1. elZinc® profiled Façade panel. Maximum length nominally 4m
2. Tongue and groove joint, can be varied from 5 to 25mm wide
3. Transversal shadow joint
4. Weathering strip
5. Tongue profile. Adjusts in length to vary joint width
6. Groove profile
7. Joint centres dimension. Up to 300mm in 1.0mm thick elZinc®
8. Direct fixing using self-drilling screws or rivets to rail profile sub structure (not shown)

Transverse joints

Horizontal panels – shadow joint with joint liner.

Creates a shadow joint in the vertical and therefore establishes a grid pattern across the façade.

The width of the joint can vary from the minimums given below (to allow for thermal movement) up to 25mm.

  • 1m panel – 4mm min.
  • 2m panel – 5mm min.
  • 3m panel – 7mm min.
  • 4m panel – 8mm min

Horizontal – sleeved joint

A short sleeve is fixed to one end of the panel, over which the adjoining panel is slid.

Very discrete joint resulting in a completely horizontal design.

The same dimensions given above for the joint width apply here too.

Vertical panels – aproned joint

Weather–secure joint.

Visually robust (can be adjusted by modifying the face of the profile)

Divides the façade into horizontal segments.

Boni fachada de zinc


The panels combine a flat solid feel with a certain delicacy due to their slim dimensions.

The panel joint’s visual impact can be subdued or accentuated by the architect by varying its width from 5 to 25mm.  If combined in the same façade, blocks of panels can be created to visually modulate the façade at greater intervals. Other design features, such as tapering the panels, can also be used to add interest to the façade.


  • The panels are screwed or riveted to the metal profiles behind.
  • The spacing of the profiles should not exceed 60cm (where wind loading is high it should be reduced).

Layout options

Design with uniform horizontal and vertical shadow joint widths.

This is the simplest of designs and the most common. It gives a homogeneous feel to the façade.

Horizontal design using different joint widths.

This ‘frames’ blocks of panels and can create the illusion (at a distance) of large panel sizes.  The heavier joints are normally made to coincide with openings.

Design combining vertical and horizontal panels.

This is just one example of the possibilities available. The setting out of the supporting profiles is important as they must be perpendicular to the panel.

Design using sleeved transversal joints.

This reduces the impact of the transversal joints lending, in this design, more horizontality to the façade.

Vertical design

Normally the transverse joint is made to coincide with the window lintels to keep the façade tidy.