Aluminum Composite Facade Installation — From Sheet to Handover

Aluminum composite panels (ACP) are today the most common choice for modern facades in Iran — from office towers and commercial complexes to the renovation of older buildings. The reason is clear: a wide variety of colors and finishes, low weight, fast installation, and a price that is reasonable compared with many other facade materials. But as we saw on projects such as Iran Mall, the difference between a composite facade that lasts and one that fades or ripples after just two years comes down to one thing: the quality of the sheet and the correctness of the installation.

A composite sheet is made of three layers: two thin aluminum skins on the face and the back, and a core in between. What determines the life and safety of the facade is the quality of these three layers. Quality sheets carry a PVDF coating that keeps its color against sunlight, acid rain and temperature swings; ordinary sheets with a basic plastic coating answer their first harsh summer by going dull. The core comes in two main types: a standard polymer (PE) core and a fire-rated core with a mineral charge (FR). For tall and crowded buildings, choosing an FR core is a safety decision, not a matter of taste.

Telling a genuine sheet from a counterfeit is possible in the workshop, not just on paper. A genuine sheet arrives in standard packaging with full specifications, the thickness of its face and back skins matches the test coupon, and when milled, the layers separate cleanly and uniformly. Because our team works directly with the manufacturing factories, without middlemen, we guarantee the authenticity of the sheet at the source — something that cannot be guaranteed when buying through market intermediaries.

Execution of a composite facade starts with the substructure, and this is where the quality of the project is decided. The substructure must be level, plumb and anchored to the main structure — not to internal partitions. The correct spacing of the profiles, proper drainage paths and allowances for thermal expansion let the sheets breathe freely through the summer heat and the winter cold, so they never ripple. Even the best sheet in the world will not give an acceptable result on a poor substructure.

After the substructure comes flashing and waterproofing. The top and side flashings must be completed before the sheets are installed, so that rainwater has no path into the cavity behind the facade. One of the most common defects in low-quality composite facades is water penetration behind the sheets, which leads to staining, grime build-up and even corrosion of the substructure — all because the flashing stage was skipped or taken too lightly.

The sheets are usually installed in one of two ways: cassette (Cassette) or simple edge return. In the cassette method, the sheets are milled and folded in the workshop into level, uniform boxes and then mounted on the substructure. The result is a more uniform facade with regular joints and the ability to remove any cassette individually for repair. In the simpler method, the edge of the sheet is turned back and the panel is installed directly — faster and cheaper, but with less uniformity and less serviceability. The choice between the two depends on the type of project, its height and the budget, and must be settled transparently at the detail-design phase.

Cutting, milling and folding the sheets must be done with precise machinery in a controlled environment. The milling line must cut only the core and must not damage the aluminum skin; if the milling depth is too great, a white line or a crack appears on the sheet and remains visible on the facade. That is why we carry out cutting and cassette fabrication in the workshop with jigs and templates — not by trial and error on the building itself.

A question clients ask constantly: 'What is the price of composite facade installation?' The honest answer is that the price depends on several factors: the type and brand of sheet (PVDF or ordinary coating, FR or PE core), the sheet thickness, the complexity of the facade geometry (the amount of cutting and folding), the height and the site access, and the total area. No realistic estimate is possible without seeing the drawings and visiting the site — which is exactly why we provide the initial visit and estimate free of charge, so that the number you receive is a workshop number, not an advertising one.

When choosing a composite contractor, check three things: first, genuinely executed reference projects — not just renders and photos; second, the execution details of the substructure and flashing — a contractor with no details is working by guesswork on site; and third, a written warranty with after-sales service. A correctly built facade stays healthy for decades with one wash a year — the same washing and maintenance we provide as part of our after-sales service.

In summary: a composite facade is not a product, it is a system. The final quality is the sum of genuine sheets, an engineered substructure, correct flashing, precise cassette fabrication and specialist installation. If you want a modern, trouble-free facade for your project, composite is a logical choice — provided you work with a technical team from day one. To see our executed projects and receive a transparent estimate, visit our composite services page or request a free site visit through the contact page of Namakaran Fakher Engineering Co.