01Use the material name accurately
Weathering steel is the correct general term when the exact proprietary material has not been verified. Use COR-TEN® only where the supplied material and documentation genuinely support that designation.
The appearance of a rust-toned steel product does not by itself prove a particular weathering-steel grade, chemistry or performance claim.
02Plan the patina and runoff path
Weathered steel develops through repeated wet-and-dry exposure. Colour and texture change over time, and early oxide runoff can stain pale concrete, stone, plaster, paving or pool finishes.
Show where water leaves panels, planters, screens and structures, and keep vulnerable adjacent surfaces or drainage details in the project review rather than treating patina as a purely visual choice.
03Design each application around its real loads and contents
Planters can become very heavy when filled and need drainage, soil, irrigation and support considered together. Screens and gates need wind, frame, hinge or fixing review. Pergolas and pavilions introduce structural and foundation requirements that cannot be inferred from a decorative panel.
Apollo can coordinate product geometry and available fabrication information; final structural design, foundations and local approvals remain project-specific responsibilities unless expressly included elsewhere.
04Keep hot zones and food-contact materials separate
Fire features and live-fire cooking can use weathered steel as an architectural body, but the hot zone, cooking plate, grate or food-contact surface may require a different material and detail.
Fuel, heat, smoke, clearances and local fire requirements should be resolved against the exact product and site. Do not assume the outer weathered-steel shell defines the cooking specification.
05Custom fabrication needs controlled drawings
Plans, elevations, sections and detail drawings should define dimensions, folds, joints, frames, brackets, drainage openings, fixing points and interfaces before production. Dimensioned sketches can start the conversation, but approved fabrication information should control manufacture.
For repeated project elements, a controlled drawing and finish schedule also reduces variation between batches, buildings or landscape zones.
06Build the project brief around interfaces
Send the site, destination, photographs or drawings, intended application, approximate dimensions, quantities, exposure, surrounding finishes and installation/access constraints. For planters add soil and irrigation intent; for screens add sightlines and support; for fire add fuel and operating context.
Apollo supplies the agreed product package and current supporting information. Site preparation, structural engineering, drainage, installation, local fire review and statutory approvals remain project-specific unless separately agreed.
- Application and destination
- Dimensions and quantities
- Verified material requirement if any
- Patina / runoff-sensitive adjacent finishes
- Drainage and support conditions
- Fixing or frame interface
- Fire / cooking / water interface where relevant
- Drawings, access and delivery constraints