reduction reaction burn brick variety of designs

A varied red-to-brown brick palette can create depth and rhythm, but colour alone cannot identify the firing process or approve a facade product.

This guide uses a 2022 WAGAS-branded interior image archive to explain colour-range control, batch blending, module and joint composition, cuts and corners, mock-ups, exposure evidence and system selection. It complements product pages without repeating generic brick or paving benefits.

Archive and evidence boundary: the photographs show a WAGAS-branded restaurant interior, but the legacy record does not identify the branch, location, designer, photographer, project year, product manufacturer, LOPO role, SKU, unit dimensions or installation system. The old “reduction reaction burn” label is not proven by appearance. Confirm the current product and manufacturing declaration before using a process term.

Start with what the archive can—and cannot—show

Visual observation versus project evidence
Archive observationEvidence still required
Red, orange and brown variationCurrent manufacturer/model, finish, approved physical range, production batch/lot, colour-measurement or sample-control method where specified, and permitted variation after installation
Long narrow vertical modulesActual unit length, width, thickness, tolerances, orientation, face/back, intended use, edge condition and current dimensioned drawing
Dark and light joint linesProject joint material, colour, width/depth/profile, movement strategy, workmanship tolerance, staining/cleaning compatibility and approved mock-up
Walls, counters and kitchen openingSubstrate, support or bonding route, interfaces, public contact/impact, cleaning, moisture/heat/grease exposure, food-service requirements and responsible-system approval
WAGAS signSpecific branch, project and design credits, material supplier and contract roles. None is supplied by the 2022 post, so the image set is not presented as a verified LOPO project.

WAGAS sign on a wall of vertically arranged red and brown brick-like units
Attachment 9412 preserves the complete 762 × 665 archive image. The wall illustrates a colour distribution and vertical module; it does not prove product identity, reduction firing or performance.

Define “reduction-fired” as a traceable product claim

Reduction firing describes a controlled manufacturing condition, not a colour name. Similar-looking red, orange, brown, grey or variegated surfaces can arise from different bodies, firing routes, surface treatments, glazes or post-production effects. Conversely, units from a declared reduction-fired range may not reproduce one photograph’s palette.

Product declaration

Record the current manufacturer, model and finish; declared firing/process description; plant and date/version; intended use; and the documents that connect delivered batches to that product.

Physical reference

Approve a representative set showing expected light, mid and dark units, surface texture, edge and dimensional variation. A single “perfect” sample cannot define a varied range.

Performance file

Keep colour/process identity separate from absorption, strength, freeze-thaw, salts, staining, slip, fire or other tests. Match every result to the exact product, test configuration, method and exposure.

No reverse inference: do not infer kiln atmosphere, temperature, clay chemistry, colour-through-body, water absorption, strength, weather resistance or environmental impact from colour. Obtain current written evidence for each required statement.

Write a colour-range and batch-blending plan

Translate the visual intent into an approved physical range and a repeatable site procedure. Review samples under representative daylight and artificial lighting, at close range and the intended viewing distance, beside the proposed joint, metalwork, timber, glazing and floor finishes. Photographing samples is useful for records but does not replace physical approval.

Colour-control checkpoints
Reference setLabel every approved unit by model, finish and batch/lot. Define acceptable light/dark limits, surface variation and any excluded conditions without relying on an uncalibrated screen image.
Mix scheduleDefine how many pallets/cartons and which lots are opened together, how installers draw and rotate units, and whether the design uses random distribution, bands, gradients or a mapped sequence.
Hold pointsApprove a representative dry layout, then the full-size installed mock-up, then the first completed area before production continues. State who may accept or reject a colour shift.
TraceabilityRecord pallet/carton and lot locations on elevations. Quarantine damaged or out-of-range units and document substitutions rather than blending them invisibly into accepted work.
Future replacementStore labelled spare stock in suitable conditions. Agree how a replacement can differ from weathered or cleaned adjacent work and how discontinued batches will be handled.

WAGAS restaurant interior with red and brown brick-like wall and counter finishes
The 769 × 568 archive view shows how a warm brick palette relates to timber, dark ceilings, glazing and furniture. It is a composition reference, not a current product or project specification.

Coordinate module, joint, cuts and corners

Start setting-out from controlling dimensions: openings, counters, columns, corners, floor/ceiling lines and adjacent panels. Test whether a vertical, horizontal, stacked, running or custom bond supports the design intent without leaving narrow slivers or uncontrolled joint drift. Coordinate nominal unit size plus the project joint—not unit size alone.

Composition drawing checklist

  • dimensioned module and bond/orientation on every elevation;
  • joint width, depth/profile, colour and alignment across returns and changes of plane;
  • start/stop datums, centre lines and relationships to signage, lighting, services, furniture and glazing;
  • inside/outside corners, reveals, soffits, bases, tops, openings, curves and transitions to other materials;
  • full, cut and special units, permitted minimum pieces and treatment of cut or exposed edges;
  • structural and material movement joints carried through the finish at coordinated locations; and
  • access panels and removable zones that do not disrupt the intended colour distribution.

Curved service counter faced with vertically arranged red brick-like units in a WAGAS interior
The 766 × 579 image illustrates module and colour continuity around a curved counter. The archive does not disclose the units, radius, cuts, backing or attachment route.

A full-size curved or corner mock-up should use the proposed product, support/substrate, joints, cuts, trims and adjacent finishes. It must be large enough to show cumulative tolerance and the colour range. A flat sample board cannot validate a curved counter, exterior corner or facade opening.

Select the complete application and support route

Do not transfer details between unlike systems
Interior adhered facingConfirm that the unit, substrate/preparation, adhesive or mortar, joints, movement and edge/corner details form an approved compatible system for unit mass/format, moisture, heat, cleaning and public contact. No universal mix, thickness or spacing is given.
Exterior adhered facingAdd climate, wetting/drying, freeze-thaw where relevant, salts, thermal/moisture movement, water-management interfaces, height and falling-object risk. Use the project’s required tests, engineering and code route.
Masonry / supported brickworkDesign foundations or shelf support, ties/reinforcement where required, cavity/water control, movement, openings, top restraint and temporary/final stability. A thin facing image does not approve masonry construction.
Mechanically supported facadeUse a current product declared for the proposed carrier/fixing system. Engineer panels/units, rails, brackets, anchors, substrate, cavity, drainage, movement, fire stopping and interfaces as one assembly.
FlooringWall-facing appearance does not qualify a unit for foot or vehicle traffic. Confirm intended horizontal use, slip, abrasion, impact/loads, setting/support, falls, drainage, joints and maintenance under the applicable methods.

The responsible architect, structural/facade/enclosure and fire specialists, manufacturer/system supplier, contractor and installer must define and approve the route for the actual building. Photographs cannot reveal concealed layers, compatibility, capacity or code compliance.

Match exposure evidence to the exact product and assembly

For exterior work, define climate, orientation, saturation, freeze-thaw where applicable, wind-driven rain, coastal or de-icing salts, pollution, UV/heat exposure, impact and cleaning access. Request current test reports and declarations for the proposed product and configuration under the required standard edition and acceptance criteria. Do not import results from another body, finish, thickness or installation.

For food-service interiors, coordinate cleaning chemicals and frequency, grease, steam, heat, staining sources, wet zones, hygiene detailing, public impact and interfaces with stainless steel, counters, equipment and services. Visual texture and colour do not establish cleanability or suitability. Test representative units, joints and sealers/treatments where proposed, and record prohibited methods.


Kitchen opening within a mixed red brick-like wall in a WAGAS restaurant interior
The 768 × 655 archive view highlights an opening, stainless-steel transition and food-service exposure. It does not identify the finish system or prove hygiene, heat, stain or cleaning performance.
Environmental evidence: a reduction-firing claim or varied clay colour does not establish low impact, recyclability, energy savings or “green” status. Review current product-specific EPD/LCA scope, plant and kiln energy/fuel, raw materials/additives, emissions, yield/waste, transport, installation layers, maintenance, service-life scenario and practical end-of-life route.

Assemble the approval and handover record

Before procurement and installation

  • approved product/model, intended use, dimensions/tolerances, process declaration and test/certificate register;
  • physical colour-range set, batch-mixing method, full-size mock-up and written acceptance record;
  • coordinated elevations, cuts/corners/openings, joints/movement, support route and interface details;
  • quantity, overage/replacement strategy, pallet/lot traceability, packaging, delivery and storage plan;
  • inspection hold points, nonconformance/quarantine process and cleaning/protection requirements; and
  • as-built lot map, spare-stock labels, maintenance instructions and repair/replacement method.

Review current options on Terracotta Brick, Terracotta Tile and Terracotta Rainscreen as distinct starting points. Use the terracotta tile receiving and inspection checklist to plan batch records and acceptance; confirm current availability and evidence for the selected route.

Build a traceable colour and application brief

Share the building use and location, interior/exterior areas, exposure, drawings and dimensions, desired colour range and distribution, product/application route, substrate/support information, cuts/corners/openings, applicable standards, mock-up/testing plan, quantities and programme.