A “never fade exterior wall tile” claim and the phrase “split fire” are not usable criteria. The first is an absolute colour statement without exposure or time; the second is ambiguous. A current specification should replace both with an exact tile identity, a documented fired-colour range, project exposure and clearly defined fire evidence.

Archive boundary: the 2013 page described a natural-clay wall tile at 60 × 242 mm without a thickness, packed in cartons on pallets for exterior wall decoration. It also used acid-resistant, antibacterial, heat-insulation, non-slip, firebrick and wear-resistant language and the incomplete “GB/T19001-2000/ISO9001:200” reference. None is current colour, fire, product or certification evidence.
Archived split exterior wall tile WBS6373
Retained archive image WBS6373. Confirm the current code, full three-dimensional geometry, fired range, surface and separately applicable fire documentation.

Replace the archived wording with definitions

Ask what “split” was intended to describe: manufacturing route, surface, product family or another attribute. Do not preserve the phrase in a purchase order unless the supplier defines it in current product data. Request a code and drawing with length, width, actual thickness, edge, rear profile, tolerances and mass.

Likewise, replace “fire” with the exact project question. The design team may need information about a tile material, a facing assembly or a different fire-safety function. Those are not interchangeable. Record the method, classification or performance criterion, configuration and jurisdictional acceptance route before requesting a document.

Set a realistic colour-appearance boundary

Describe the intended fired range and the facade context: orientation, shading, scale, joints, adjacent materials, runoff and maintenance access. Approve several current samples under relevant daylight and artificial light. A statement that colour will “never” change cannot account for deposits, cleaning, wetting, repairs or different viewing conditions.

Define what the project will actually control: initial supplied range, batch blending, mock-up appearance, replacement strategy and cleaning method. If accelerated-weathering or other colour evidence is required, the designer should name the method and acceptance basis. Ask whether the exact product and finish were tested and what the result can support.

Create an appearance register with labelled light, typical and dark samples, representative surface texture, viewing conditions and approval date. The set defines acceptable boundaries, not guaranteed proportions. If the supplier proposes another clay body, firing route, finish or production window, repeat the review. This makes colour acceptance a controlled project decision rather than a promise attached to one photograph.

Create two independent approval tracks

Colour track

Link labelled samples, lighting review, wet appearance, production lots, blending instructions and baseline photographs.

Fire track

Link the exact criterion, test or classification, specimen or assembly configuration, report and project reviewer.

Product track

Confirm code, complete dimensions, finish, drawing revision, current availability and manufacturing tolerances.

Wall track

Coordinate substrate, installation route, joints, movement, flashings, drainage and interfaces.

Keep the tracks visible in one submittal register but do not allow approval in one column to close another. A representative colour sample cannot prove fire performance, and a fire report cannot approve shade, water management or installation workmanship.

Check the scope of fire documentation

Read the report or declaration rather than its filename. Confirm the issuing body, method, date, product or assembly identity, dimensions, finish, substrate, fixing or bonding configuration and limitations. Ask the responsible fire consultant or code professional whether it addresses the project requirement.

Do not convert “firebrick” into a facade classification or treat a management-system certificate as fire proof. Changes to thickness, rear profile, adhesive, insulation, cavity, joints or substrate may affect applicability depending on the assessment. Route substitutions through the same review and record the decision.

Maintain a fire-evidence row for every required project outcome. Name the submitted document, exact configuration, reviewer, status, conditions and outstanding action. When a component changes, mark the affected row open until the responsible reviewer closes it again. This prevents a document accepted for one configuration from remaining attached automatically to a materially different wall proposal.

Control water and soiling before judging colour

Detail copings, sills, heads, bases, drips, flashings, penetrations and changes of material so water has a deliberate path. Repeated runoff or slow drying can create visible differences that may be misread as fading. Coordinate joint geometry and maintenance access with the wall system.

Trial cleaning on the representative mock-up using the proposed products and method. If a sealer or treatment is considered, evaluate its effect on colour, sheen, moisture behaviour and renewal. The terracotta tile range can support early selection, subject to exact current data.

Build a baseline and monitor change

Photograph approved mock-ups and completed elevations with labelled locations, dates and consistent viewpoints. Retain physical control samples and production-lot records. Baseline documentation helps distinguish fired variation, surface deposits, moisture patterns, cleaning effects and replacement patches during later inspection.

Define inspection triggers for persistent staining, open joints, impact damage, changed runoff or a revised cleaning regime. Investigate the wall and operations before diagnosing colour loss. The project gallery can help discuss facade context, but project records must control technical conclusions.

Release a claim-free, traceable order

Before release, align code, complete drawing, approved fired range, fire submittal status, wall details, quantities, specials, spares, packing and programme. Confirm pallet sizes and weights, delivery sequence, protected storage and lot identification. Compare complete scope, including testing, mock-ups and exclusions.

Handover should retain installed lots and locations, final drawings, colour baseline, fire-review documents, inspection records, cleaning method and spares. State limitations plainly. This creates a useful record without promising permanent colour or assigning an undefined “fire” quality to the tile.

Replacing an old “never fade” or “split fire” description? Send the current project criteria, elevations, exposure, wall system, colour intent, fire submittal list, quantity and programme to roger@lopoterracotta.com, or use the contact page. LOPO can prepare exact current product information for review.