CADARN
CADARN is Apollo's modular aluminium louvre pathway for repeatable residential and selected commercial outdoor spaces. It is the better starting point where standardised geometry and kitset logic can solve the brief.
International Decision Centre / Global
Both are louvre systems, but they are intentionally positioned for different levels of scale, customisation and project complexity.

Direct answer
Use CADARN when a modular kitset louvre system suits the size and configuration. Use ARKEN when the project needs bespoke geometry, large-span or multi-bay design, retracting capability, premium glazing or more complex architectural integration.
Project decision
Use these points to structure the first project conversation. Final suitability stays tied to the actual site, selected system and local project team.
CADARN is Apollo's modular aluminium louvre pathway for repeatable residential and selected commercial outdoor spaces. It is the better starting point where standardised geometry and kitset logic can solve the brief.
ARKEN is Apollo's bespoke architectural louvre pathway for larger, more engineered and design-led projects. It is intended for custom spans, multi-bay layouts, premium enclosures and selected rotating-plus-retracting solutions.
The useful question is not which brand is universally better. It is whether the project can remain inside a modular system or needs a bespoke architectural platform.
Comparison matrix
A first-pass comparison before drawings and site conditions are reviewed.
| Factor | CADARN | ARKEN |
|---|---|---|
| System type | Modular / kitset | Bespoke architectural |
| Project scale | Small to medium | Medium to large / complex |
| Custom geometry | Limited by modular logic | High |
| Large-span focus | No | Yes |
| Retracting pathway | Not core | Available in selected systems |
| Typical fit | Residential / straightforward commercial | Premium residential, hospitality, resort, commercial |
Project brief
Frequently asked
No. Site conditions, scale, permanence, local works, operating expectations and documentation requirements change the right starting point.
No. Apollo uses a manual project-brief process so the selected system, quantities, destination, freight and project interfaces are checked before pricing.
Apollo is primarily a supply-only project-supply specialist. Local engineering, approvals, foundations, services, installation and other site work remain with the appointed local project team unless a written project scope states otherwise.
Next step
Send the site, dimensions, intended use, quantities and known local requirements. Apollo will review the relevant product pathway and keep local engineering, approvals and site-work responsibilities explicit.