A red natural-clay terracotta wall tile should be approved as a fired range on the intended facade, not as one digital colour. Orientation, daylight, shade, joints, wetting, adjacent materials and batch blending change how the wall reads. Current samples and a representative mock-up must define the project palette.
Translate “red” into a facade palette
Describe whether the design seeks an even red field, a restrained blend or an active range with darker and lighter units. Identify important viewpoints, facade scale and relationships with stone, concrete, metal, glass, mortar and landscape. A colour that works in a small sample may read differently across a large elevation.
Request the current code and finish designation. Ask whether WY770 still applies and whether the archived size remains available. The drawing should show length, width, actual thickness, edge, rear profile, tolerances and mass. Keep the drawing, quotation, sample set and reports tied to one revision.
Approve a representative fired range
Light reference
Retain an accepted lighter unit that still belongs within the proposed production range.
Typical reference
Record representative body colour, texture and edge rather than one idealized piece.
Dark reference
Define the accepted darker boundary and distinguish fired variation from defects.
Context board
Review tile, joint and adjacent materials together under relevant lighting conditions.
The labelled set defines visual boundaries, not fixed percentages of each tone. Ask how production will be checked and how cartons or lots should be blended. Digital photography is useful for records but cannot replace physical approval because capture and displays alter colour.
Create a colour-approval record that names each sample, production date or lot where known, viewing conditions and the decision it supports. Photograph the group with a neutral reference for communication, while stating that the retained physical set controls. If the supplier later proposes a different clay body, firing route or production window, repeat the range review rather than relying on a similar marketing name.
Study orientation, light and wet appearance
Review north, south, east and west orientations where relevant, as well as recessed areas, soffits and walls under artificial light. Texture creates shadow that may strengthen or soften the perceived red. Include joint width, depth and colour because the grid can change the overall balance as much as a modest tile variation.
Observe the mock-up dry and after controlled wetting. Rain patterns, runoff and uneven drying may temporarily alter appearance or reveal water paths. If a treatment is proposed, trial it for colour, sheen, water behaviour and maintenance; do not assume it is invisible or permanent.
Coordinate module, corners and transitions
Use actual tile dimensions and joint assumptions to set out elevations, openings, parapets, bases and changes of material. Resolve where setting-out begins and where tolerances are absorbed. Avoid leaving narrow slivers at a prominent jamb or corner because the module was based only on nominal dimensions.
Detail external and internal corners, returns, sills, heads and movement joints. Confirm whether standard field pieces, cut units or current special shapes will be used. The appearance drawing and technical wall detail must agree before manufacturing or cutting begins.
Separate colour approval from technical evidence
Define exposure, substrate, wall height, wind actions, moisture, freeze–thaw conditions where relevant and maintenance access. Request current exact-product evidence for the project’s absorption, strength, freeze–thaw, chemical or other criteria. Check method, specimen identity, dimensions, finish, date and scope.
An attractive sample does not approve the wall assembly, and a test report does not approve the fired range. Coordinate substrate, fixing or adhesive route, joints, movement, flashings and drainage with responsible specialists. The terracotta tile range can support initial material selection.
Control production, blending and site distribution
Agree checks for dimensions, edges, warpage, cracks, texture and the approved colour range. Identify production lots on packing and delivery records. State whether lots should be blended across the whole facade or allocated by elevation, and define how replacements and split shipments will be assessed.
Plan quantities, wastage, special pieces and labelled spares with pallet sizes, weights, lifting, delivery sequence and dry protected storage. At site, log cartons before distribution. Use the approved blending instruction instead of allowing pallet position to dictate bands of colour. The project gallery can help teams discuss scale and composition.
Open a controlled selection of cartons before full installation and compare the material with the retained range. Build the first representative elevation area using the planned distribution method. If the field appears striped, clustered or outside the approved boundaries, pause and adjust the blending plan while batches remain identifiable. Record the decision and keep rejected or held material separate.
Hand over a durable colour record
Release the order when code, drawing, fired range, mock-up, evidence, wall details, quantities, packing and programme align. Record approved changes and compare quotations on complete scope, including samples, specials, testing, freight and exclusions.
Handover should preserve final elevations, installed batch locations, control samples, cleaning method and spare inventory. Future replacement may remain visible, so plan repairs deliberately rather than promising an invisible match. Store labelled spares and their documents in a protected, traceable location.