Fibre Reinforced Facade Encyclopedia: Installation
Facade installation is the site process of fixing panels to their substructure, from the survey of the as-built structure through setting out, bracket and rail installation, panel placement and sealing, to inspection and handover. It is where a design that works on paper meets a structure built to different tolerances, and it is the stage at which most facade defects are either created or prevented. Almost none of them are created by the panel.
The three commonest installation failures are all sequencing failures: a cavity barrier installed after the panels, a flashing installed after the panel that covers it, and a membrane penetrated before anyone checked how it would be sealed.
At a glance
| Property | Typical value | Note |
|---|---|---|
| Typical install rate | 20 to 60 m² per crew per day | Depends on panel size, access type and repetition |
| Crew size | 3 to 6, including a leading hand and a rigger | Plus crane or hoist operator |
| Access options | Tower or mobile crane, monorail, mast climber, swing stage, EWP | Chosen on panel weight, size and building height |
| Manual handling limit | about 25 kg per person | Above that, mechanical handling or a lifting frame |
| Bracket adjustment used on site | ±10 to ±25 mm at the structure | Coarse at the bracket, fine at the rail, none at the panel |
| Setting out | Total station to an independent facade grid | Not measured off the slab edge |
| Wind limit for lifting | Typically stopped around 10 to 12 m/s | Lower for large flat panels acting as sails; confirm in the lift plan |
| Protective film | Removed within the manufacturer’s stated UV window | Left too long it bonds and marks the finish |
| Hold points | Anchor proof test, pre-close-in inspection, first bay | Written into the inspection and test plan |
Before anything arrives on site
Installation starts weeks before the first panel is unloaded. Shop drawings have to be approved and the fixing design certified by the panel engineer against the project wind pressures. Control samples and the mock-up have to be signed off. The inspection and test plan has to be agreed, with hold points named. And the as-built structure has to be surveyed.
The survey is the step that gets skipped and should not be. A total station survey of slab edges, columns and openings against the facade grid tells you, before anything is ordered, whether the bracket adjustment range covers the deviation actually present. Where it does not, there is time to change bracket type, add packers or agree a local redesign. Discovering the same deviation with a crew and a crane on site costs an order of magnitude more.
Delivery and storage need the same planning. Panels travel and store in purpose-made A-frames or stillages, on edge, on dunnage, interleaved between faces. Panels stacked flat and face to face arrive with the defects that get argued about at handover.
Setting out
The facade is set out to its own grid, established by survey and independent of the structure. Datum lines are carried up from a controlled vertical reference, a level line is established on each floor, and horizontal control comes from the primary grid rather than from the concrete. The structure deviates; set the facade out from the structure and that deviation goes straight into the joints, where it accumulates.
Vertical control matters more than most crews expect, because the eye reads a joint line running out of plumb over three storeys long before it notices a panel 3 mm out of square. Set the vertical lines first, distribute accumulated error deliberately rather than letting it pile up at one end, and record the actual set-out. That record is what resolves a joint width argument at practical completion.
Sequence
The normal sequence is brackets, membrane and insulation, cavity barriers, flashings, rails, then panels, because each layer has to be complete and inspected before the next covers it. The commonest serious defect in installed rainscreens is a cavity barrier fitted after the panels, or fitted loose because there was no longer room to compress it. The same applies to flashings at openings and floor lines, and to sealing every membrane penetration made by a bracket fixing.
Panels then go up bottom to top in most systems, with the gravity points made first and the restraint points left free to slide. Where an elevation must be closed out of sequence around a hoist or crane tie, plan the change rather than improvising it, because it affects flashing laps and cavity barrier continuity.
Install the first bay as a hold point. One complete bay, measured, inspected and signed off, catches setting out, fixing, joint width and protection errors while they affect one bay rather than one elevation.
Crane, access and handling
Access is selected from panel weight, size and building geometry. Mast climbers and monorails suit repetitive rainscreen work at moderate weights. Swing stages and rope access suit light panels and remedial work. Cranes suit heavy or large panels, but crane time is contested and every lift booked is a lift another trade did not get.
Lifting is engineered, not improvised. Panels have designed lifting points, usually cast-in, and a spreader beam or lifting frame where the panel would otherwise be loaded in a way it was not designed for. Slinging a panel from its fixing anchors, which are designed for in-service loads in a different direction, is a common and serious error. A lift study covering crane position, radius, capacity at radius, exclusion zones and the wind limit should exist for anything heavy or awkward.
Wind stops work earlier than crews expect. A large flat panel is a sail, and the limiting speed for a controlled lift is well below the speed at which the rest of the site is still working. Put the limit in the lift plan, put an anemometer at the lift rather than at ground level, and give the leading hand authority to stop.
Tolerance take-up and protection
Adjustment runs in one direction only: coarse at the bracket to structure connection, medium at the bracket to rail connection, fine at the panel. A deviation that should have been taken out at the bracket cannot be recovered at the panel, and the attempt produces anchors at the end of their slots, restraint fixings packed tight so they can no longer slide, and joints that visibly vary. Where deviation exceeds the designed range, pack, deepen or redesign. Never force a panel; a forced panel bears on its neighbours and will crack, bind or spall on the first hot afternoon.
Protection runs from delivery to handover. Leave protective film on until the panel is placed, then remove it within the manufacturer’s stated ultraviolet window, because film left through a summer bonds to the finish and takes the finish with it. Protect the bottom two to three metres from site traffic and above all from welding and grinding, since hot spatter embeds permanently in a gel coat. Keep slurry, cutting water and alkaline runoff off finished panels.
- Coarse to fine adjustment, in that order, never backwards
- Restraint fixings left free to slide, never packed solid
- Protective film removed inside the stated window
- No welding, grinding or cutting adjacent to finished panels
- Damaged panels replaced, not patched, unless a repair procedure was approved on the mock-up
Inspection and handover
Inspection is structured around hold points in the inspection and test plan, not a single walk at the end. The usual set is proof testing of a nominated sample of structural anchors at an agreed load and rate; a first bay inspection; pre-close-in inspection of membrane, insulation, cavity barriers and flashings before panels cover them; and progressive inspection of fixing completion, since a missing restraint fixing is invisible once the panel is on.
Site water testing is separate from AS 4284 mock-up testing. A field spray or hose procedure checks that what was built matches what was tested, and is most useful early, on the first completed bay, where a failure can still change the method.
Handover is a document set as much as a building: as-built shop drawings, the set-out and deviation record, anchor test results, the photographic record of closed-in layers, the inspection and test plan signed at every hold point, warranties with their conditions, a maintenance and cleaning manual naming approved cleaning agents, and an agreed quantity of spare panels. The spare stock matters more than it looks: a cast finish made from a different batch years later will not match, and a facade whose panels cannot be individually removed will not accept them anyway.
Standards and references
- AS 4284 Testing of building facades, and field water penetration checks in support of it
- AS/NZS 1170.2 Wind actions, as the basis for the fixing design being installed
- AS 2550 series Cranes, hoists and winches, safe use; AS 1418 series, design
- AS/NZS 1576 Scaffolding; AS 2550.10 for mobile elevating work platforms
- AS 1418.13 and AS 2550.13 for building maintenance units and facade access equipment
- NCC 2022 Volume One, cavity barrier and external wall provisions applying to the installed system (check the edition adopted in your jurisdiction)
- GRCA guidance on handling, storage and installation of GRC products
- CWCT Standard for Systemised Building Envelopes, site testing and workmanship (UK); AAMA 501.2 field water test (US)
Where this matters on a ShapeShift project
One Sydney Harbour, Barangaroo: A high rise residential tower, and a reminder that facade installation is a survey exercise before it is a lifting exercise. Panels are set out against the surveyed structure rather than the drawn grid, and the adjustment built into the fixing has to absorb the difference.
Related terms
Questions specifiers ask
What is the correct sequence for installing rainscreen cladding?
Brackets, then membrane and insulation, then cavity barriers and flashings, then rails, then panels. Each layer must be complete and inspected before the next covers it, which is why cavity barriers and flashings cannot be added after the panels are on.
Should the facade be set out from the structure?
No. Set out to an independent facade grid established by total station survey, with vertical control carried from a primary reference. Setting out from the slab edge transfers structural deviation into the joints, where it accumulates.
How much tolerance can be taken up during installation?
Only what the brackets were designed to absorb, typically ±10 to ±25 mm at the structure connection with smaller ranges at the rail and panel. Anything beyond that needs packers, a deeper bracket or an agreed redesign, not a forced panel.
When is a crane needed rather than a mast climber?
Panel weight and size decide it. Repetitive panels within mechanical handling range suit mast climbers and monorails; heavy or large panels need a crane, with a lift study covering radius, capacity, exclusion zones and a wind limit.
What should be inspected before panels are installed?
Everything the panel will hide: membrane laps and penetrations, insulation retention, cavity barrier position and compression, and flashing laps. Make it a hold point with a photographic record, because none of it is inspectable afterwards.
What should be handed over at completion?
As-built drawings, the set-out and deviation record, anchor proof test results, the photographic record of closed-in layers, a signed inspection and test plan, warranties, a maintenance and cleaning manual, and an agreed stock of spare panels.
Planning a facade install? ShapeShell panels are supplied with engineered fixing systems, lifting points designed into the panel and installation guidance for the site team. Talk to the project team
Reviewed by Richard Halvorsen, General Manager, ShapeShift Technologies. Last updated September 2026.