Do not approve perforated metal facade panels on appearance alone. Confirm the intended function, structural requirements and exterior finish before accepting a quotation. A pattern sample cannot establish whether the proposed panel and fixing arrangement meet the project’s requirements.
If quotations omit material grades, solid borders or support details, you cannot compare them on the same basis. Resolve those gaps before selecting a supplier.
Review seven items together: function, material and geometry, perforation, structure, coating, wall interfaces, and maintenance. Each needs a defined requirement and supporting documents before the configuration is approved for manufacture.
1. Define What the Perforated Facade Must Do
Set the functional brief before comparing patterns. A decorative screen, a shading layer and a ventilated enclosure can have different acceptance requirements, even when their panels look similar.
Identify the location and purpose of each facade zone. For a shading screen, request an assessment that addresses the relevant orientation and glazing. For an enclosure that needs ventilation, ask the project designer to define the required airflow or opening criteria. For privacy, agree on viewing positions and assess a representative sample under the intended lighting conditions.
For the initial product shortlist, PRANCE’s perforated metal panels provide a category starting point for discussing the required configuration.
Record how the screen relates to the wall, windows or occupied space behind it. That relationship should guide later decisions about supports, interfaces and maintenance. The first deliverable is a short, zone-specific brief with a stated purpose and a method for checking it.
2. Specify the Metal and Fabricated Panel Geometry Together
Specify the material and finished panel as one configuration. A thickness value is incomplete without the metal grade, panel dimensions, shape and support arrangement that accompany it.
When evaluating perforated aluminum cladding, request the alloy and material condition alongside the nominal thickness. For any proposed metal, ask the supplier to identify the substrate precisely. A wood, stone or bronze appearance describes a finish effect unless the material specification establishes otherwise.
The fabrication drawing should show the panel face, folded returns, solid borders, reinforcement where proposed, and fixing locations. Ask the supplier to distinguish the finished module size from the flat sheet used to make it.
Use this drawing as the common reference for design review and quotation. If two suppliers propose different returns, reinforcement or support spacing, identify those differences before comparing prices. Do not rank a proposal by thickness alone or assume that a thicker sheet establishes structural suitability.
3. Match the Hole Pattern and Open Area to the Design Brief
Define the complete perforation layout, including its solid borders. Hole diameter alone does not describe a pattern; hole shape, spacing and arrangement are also specification fields.
Perforated panel open area expresses the proportion of openings within a stated reference area. Ask whether the quoted percentage applies to the perforated field or the whole finished panel, including unperforated margins. Keep that basis consistent when comparing proposals.
When discussing architectural perforated panel systems with PRANCE, include the hole layout and solid borders in the configuration submitted for review.
Approve a representative sample that includes the intended finish, edges and a panel-to-panel joint. Examine it from agreed distances and viewing angles. Where shading, privacy or ventilation is part of the brief, request the corresponding project assessment rather than treating an open-area percentage as proof that the requirement is met.
Record pattern direction and the treatment of corners, cut panels and transitions. This gives the supplier a defined layout to fabricate and the project team a clear basis for acceptance.
4. Verify Wind Loads Through the Complete Support and Fixing Design
Ask for structural review of the proposed panel, supports and connections together. The review should address the actual facade location and the construction shown on the drawings.
For facade panel wind loads, request the project’s design-load basis from the responsible structural designer. Ask the supplier to identify the panel geometry, support spacing and connection arrangement used in any submitted calculation or test evidence.
The review package should make these points clear:
- Which panel sizes and facade zones the evidence covers.
- How the panel connects to rails or brackets and how those components connect to the building.
- Which acceptance criteria apply to panel movement and connection performance.
- Which proposed changes would require another review.
Do not reduce the specified design pressure by simply subtracting the open-area percentage. Any allowance for perforation needs an engineering basis appropriate to the proposed screen. Likewise, calculations for a different panel size, hole layout or fixing arrangement should be checked for applicability before acceptance.
5. Select an Exterior Coating for the Actual Exposure
Choose the exterior metal coating by its documented specification and intended exposure. A colour name, sample photograph or coating label is insufficient to establish suitability for the project.
Ask the project team to describe the conditions the finish must address, including relevant weather exposure, coastal conditions, nearby pollutants and cleaning requirements. Submit that brief with the proposed substrate to the coating supplier or panel manufacturer.
Request the coating system, surface preparation, specified film thickness, application and curing requirements, and applicable test documentation. Powder coating and PVDF coatings are distinct options; their names should not be used interchangeably or treated as universal durability guarantees.
Approve a physical sample with the intended colour, gloss and texture. Ask how the fabrication and coating sequence addresses hole edges, folds and any cutting performed after finishing. Keep the approved finish specification with the panel drawings so that appearance and technical requirements remain tied to the same proposal.
6. Coordinate Rainscreen Interfaces and Fire Requirements
Review the perforated screen in the context of the complete wall construction. The outer cladding and the layers responsible for controlling water and air have separate roles that need coordinated details.
For perforated rainscreen cladding, request sections showing the screen, cavity, underlying wall layers and support penetrations. Check the proposed details at windows, corners, parapets and the base of the facade. Ask the enclosure designer to confirm drainage arrangements and the suitability of any exposed materials behind the openings.
Fire requirements need a separate, project-specific review. Ask the responsible designer to identify the applicable requirements and the evidence needed for the proposed materials and assembly. Where cavity barriers or other fire details are required, show their locations and interfaces on the coordinated drawings.
A metal substrate, coating description or result for another product does not establish the fire classification of this facade. Before accepting a report, confirm that its scope corresponds to the proposed construction and that the responsible reviewer accepts its application to the project.
7. Plan Installation, Cleaning and Panel Replacement Before Ordering
Confirm how the facade will be installed and maintained while the panel layout is still being developed. A proposed removal method should be demonstrated through the relevant detail or installation instructions.
Request a panel schedule that identifies sizes, locations, pattern direction and any special pieces. Agree on installation sequence, handling requirements, joint appearance and the sample or mock-up used to approve the result.
For maintenance, ask how workers will reach the screen and the surfaces behind it. If glazing or services require access, review the proposed route and whether a panel must be removed. Confirm the tools, clearances and handling method needed for that operation.
Obtain cleaning instructions for the selected finish and clarify how replacement panels would be specified. Retain the approved drawings, pattern files and finish references as part of the handover. If spare panels are required, define them in the purchase order rather than assuming future stock or an exact later colour match.
What to Request Before Approving the Facade
Bring the seven criteria into one review package. The following checklist helps the project team compare proposals against the same requirements.
| Decision | Document to request | What to verify |
| Facade purpose | Zone-specific brief and relevant functional assessment | Each area has a defined task and acceptance method. |
| Material and geometry | Material identification and fabricated-panel drawings | The quotation describes the proposed finished panel. |
| Perforation | Hole layout, open-area basis and representative sample | Pattern, borders and joints match the design brief. |
| Structure | Project load basis, calculations and connection drawings | Evidence covers the proposed panels and supports. |
| Finish | Coating specification, applicable evidence and approved sample | The finish requirements address the stated exposure. |
| Enclosure and fire | Coordinated wall details and applicable fire evidence | Interfaces and evidence are accepted for the project. |
| Installation and maintenance | Panel schedule, installation instructions and maintenance plan | Access, cleaning and replacement methods are defined. |
Select the proposal that resolves these requirements in a consistent set of documents. For a specification discussion with PRANCE, submit the facade brief, elevations, proposed panel geometry, finish requirements and outstanding technical questions. This gives the review a concrete starting point before the panel configuration is approved for manufacture.
