Aluminum COMPOSITE PANEL for facades

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Office building with a composite panel facade

Mounting System · Concealed Fastening

Glued-together composite panel system

The panel is cut to size and attached to the studs using elastic adhesive and double-sided tape. No visible fasteners; economical and quick to install.

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  • Hidden Fastening, Chemical
  • Flat Panel, without tabs
  • Max. height: 60 cm
  • Adhesive ≥ 3 mm thick

Glued System

Panel attached to the substructure, with no visible screws

In the bonded system, the composite panel is cut to size and fixed to the vertical rails with an elastic adhesive designed for facades and a double-sided tape. The tape holds the panel while the adhesive cures and guarantees the right adhesive thickness, while the adhesive itself absorbs expansion and vibration over the long term. The result is a continuous surface, with no rivets or folded trays.

Because it uses flat panels, it is an economical system that is quick to install, allows horizontal and vertical layouts and complex shapes, and works for both new buildings and renovations. The key is in the execution: cleaning, the right primer for each material (aluminum, steel or wood) and respecting drying times, always with products certified for facades. At StarModul we ship the panel cut to size along with the substructure, explain the procedure and, if the project is in Catalonia, install it ourselves.

  • Fixation: Hidden, chemical
  • Panel: Flat, without tabs
  • Uprights: Max. 60 cm
  • Adhesive: ≥ 3 mm thick
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Corner of a building clad with composite panels

Concealed mounting

How the " pegged" system works

The composite panel is cut to size and attached to the vertical studs using an elastic adhesive and double-sided tape. It has no tabs or visible fasteners, so the facade has a clean, seamless appearance. It is a cost-effective and quick-to-install system that absorbs vibrations and is highly resistant to aging and weathering.

  • Flat panel: no trays or folds.
  • It supports horizontal and vertical cuts and complex geometries.
  • Aluminum, steel, or wood studs, with the appropriate primer for each material.
  • Maximum spacing between studs: 60 cm.
Diagram of the composite panel bonding system
Panel attached to studs with adhesive and double-sided tape.

Procedure

Steps for Installing a Composite Panel

  1. Clean the panel. Clean the panel's bonding area with the appropriate cleaner and let it dry for at least 10 minutes.
  2. Print the panel. Apply the primer to the contact area and allow it to dry (between 15 and 60 minutes) before applying the adhesive.
  3. Prepare the studs. They must be clean, dry, and free of grease, dust, and loose paint. Metal profiles should be cleaned with the cleaner (but not wood). Apply primer according to the material: wood, aluminum, and steel each require their own type of primer.
  4. Double-sided tape. Apply a continuous strip of double-sided tape along the stud, leaving the protective paper on for now to keep dust off. The tape holds the panel in place while the adhesive cures and ensures a minimum adhesive thickness of 3 mm, which absorbs expansion and vibrations.
  5. Adhesive cord. Apply a continuous vertical bead of elastic adhesive, parallel to the tape and at least 5 mm away from it, using a triangular nozzle (8 × 10 mm) and holding the caulking gun perpendicular to the profile.
  6. Place the panel. Remove the backing paper from the tape, position the panel without pressing down so you can adjust it, and, once it is aligned, press firmly until it touches the tape along its entire length.

Important: Long-term durability comes solely from the adhesive, not the tape. That is why it is essential to follow proper cleaning, priming, and curing procedures, and to use products certified for exterior use.

Construction details

Details of the bonded system

Horizontal cross-section of the bonded composite panel system
Horizontal section
Vertical cross-section of the bonded composite panel system
Vertical section
Crown molding detail with a glued composite panel
Coronation
Detail of a lintel with a glued composite panel
Lintel
Detail of a rain gutter with a bonded composite panel
Gutter

System Specifications

Components and Dimensions of the Glued System

ElementDetail
Separators6063 T5 aluminum angle brackets positioned face-to-face, serving as retaining and support brackets, anchored to the wall with mechanical anchors. They compensate for irregularities in both directions.
StilesSpecial profile for bonding, 70 × 24.5 mm, made of 6063 T5 aluminum, bolted between the angle brackets. The first and last anchors must be no more than 250 mm from the ends.
SubstructureUnidirectional (open horizontal joint) or bidirectional, with cross members attached to the uprights using a zamak fitting and a 4.8 mm rivet or screw.
Double-sided tapeHolds the panel in place while the adhesive cures and ensures a minimum adhesive thickness of 3 mm.
AdhesiveElastic, specifically designed for facades, in a continuous vertical bead with an 8 × 10 mm triangular nozzle, at least 5 mm from the tape.
TimesCleaner: Allow at least 10 minutes for evaporation. Primer: Allow 30 to 60 minutes before bonding.
Stud SpacingMaximum 60 cm, or whatever the wind load calculation specifies if it is less.

Precautions

  • Do not use solvents to clean the profile: clean it with a damp paper towel in one direction only, and then with the activator.
  • Apply the primer only to the areas to be bonded; once cured, the primer can only be removed mechanically.
  • The adhesive on the horizontal cross members has no structural function: the panel is held in place by the vertical studs.
  • Before applying, protect the panels from heat and direct sunlight.

Frequently asked questions

Questions About Gluing

Can composite panels be installed on a facade?

Yes, using structural elastic adhesive for facades, double-sided tape, and primers, following the procedure. This is a common system for ventilated facades.

How far apart are the studs?

A maximum of 60 cm between centers. The final spacing depends on the wind load calculation and the size of the panel.

How long does it take for the adhesive to set?

The tape holds the panel in place immediately; the adhesive cures over the next few days, depending on temperature and humidity. During that time, the panel must not be subjected to any stress.

Glued or riveted?

Gluing leaves no visible fasteners; riveting is a mechanical process and more tolerant of on-site conditions (humidity, temperature, cleanliness). Both methods use flat panels.

Quote for a bonded facade

Custom-cut panels and substructure; assembly in Catalonia and worldwide shipping.

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