A ventilated facade is a silent machine: behind the slabs, an air channel works every summer afternoon carrying heat away. But the machine only works if the substructure is true and the air can enter low and leave high — the rest is scenery.
A ventilated facade is a double-skin cladding that separates the aesthetic and protective role from the insulating one. An air gap runs between insulation and cladding and, through the chimney effect, expels excess moisture and heat. It is the choice of high-end contemporary architecture: large stone or metal panels, crisp joints, and easy maintenance since every element is demountable.
click a beat · arrow keys ← → walk the site · dashed pauses are the chemistry at work
The detail of the craftthe adjustable bracket
Installation of brackets and rails (aluminium or stainless steel) anchored to the load-bearing structure.
"The facade becomes straight now, with the line stretched: afterwards, every slab inherits the error."site notebook — editorial synthesis
The invisible engine
The sun heats the slabs, the air in the channel warms with them and rises: cool in at the bottom, warm out at the top. An unpowered engine that works exactly when needed — in summer's worst hours.
UNI 11018's ≥ 5 cm usable cavity is not red tape: below that section the draught does not start and the facade loses half its point.
The loads
Every slab sends its weight to the brackets and the wind to its fixings: the reference standard — UNI 11018-1, rewritten in 2023 after twenty years — calls brackets "first-level fastening" and demands they be verified on site, not by catalogue.
Visible or concealed fixing is an image choice; capacity, tolerances and tests stay the same. The slab "resting" on the one below is the classic saving paid back in creaks.
No: the insulation layer does the insulating. The cavity works in summer — removing part of the heat before it reaches the insulation — and keeps the wall dry all year, which is the real gift to durability. In winter, thickness matters, as in ETICS.
It depends on the cladding: thin porcelain runs at 30–40 kg/m², stone can far exceed it. That is why the substrate is verified first (beat 01) and anchors are chosen by pull-out tests, not by catalogue.
Little but real: periodic inspection of grilles and vents, a clear channel, sample checks on fixings. The advantage is that the skin dismounts slab by slab: local damage is never a full redo.
Different roads: the ventilated facade costs more but shields driving rain better, lasts longer and handles summer well; ETICS wins on cost and simplicity. Budget, aesthetic constraints and exposure usually decide.
Informational links to the regulatory framework. Always verify the current text on the official source.