The archived 13 mm wood-look terracotta panel is a useful design reference, not a current specification. A project team should verify the exact profile, thickness, pattern, finish range, support compatibility and test evidence before using it on an exterior rainscreen or interior wall.
Define what “wood-look” should achieve
Wood-like appearance can come from colour, grain relief, directional lines, tonal variation or a combination. Decide whether the goal is a close timber reference or simply the warmth and linearity associated with wood. A literal repeating grain may feel artificial at facade scale, while a restrained clay interpretation can read as its own material.
Set colour direction, grain scale, gloss, texture depth and acceptable variation. Compare the finish with real timber, metal, glazing, stone and surrounding clay. Review exterior and interior lighting separately; the same brown panel may appear warmer indoors and flatter in overcast daylight.
Verify the current panel profile
Geometry
Obtain the current section, face size, actual thickness, internal webs, fixing grooves, wall thickness, edge condition and cut limits.
Mass
Request unit and area weights for the exact profile, then include clips, rails or backing in the assembly calculation.
Tolerances
Confirm length, height, thickness, bow, twist, squareness and grain-position tolerances with the measurement method.
Availability
Check product code, standard dimensions, finish route, minimum quantity, sample stages, tooling and current production lead time.
Do not infer that every panel in a nominal thickness shares the same structure or capacity. A revised die, body or fixing groove can change compatibility. The approved product schedule should cite the exact drawing revision.
Match the profile to an exterior system
For exterior use, the facade engineer should verify the panel, clips, rails, brackets, anchors and substrate under project wind, self-weight and seismic demand where applicable. Confirm orientation, support span, edge restraint, movement and replacement. A 13 millimetre face dimension alone does not establish suitability.
Coordinate open joints, cavity drainage, membranes, insulation, fire barriers, flashings and window interfaces. The wood-look face is an architectural layer, not a promise that the complete wall is waterproof, insulating, acoustic or fire compliant. Use current product and assembly evidence for each claimed result.
Confirm compatibility for interior walls
Interior use may involve a different rail, direct fixing or adhered system, subject to current manufacturer approval. Review substrate capacity and plane, cavity depth, fastener visibility, impact zones, fire-compartment requirements, outlets, access panels and edge protection. High-level or overhead conditions need project engineering.
Coordinate the panel with skirtings, ceilings, doors, furniture and lighting. Ensure maintenance teams can reach services and replace one unit. Do not adopt an exterior rail automatically if it creates unnecessary depth or visible closures indoors.
Control grain direction and repetition
Issue elevations with orientation arrows and panel codes. Decide whether grain runs horizontally, vertically or changes in defined zones. Random rotation may break the intended flow. If the finish uses a repeating roller or pattern, assess repetition across several panels and from normal viewing distance.
Review joints as part of the pattern. Dark open joints can interrupt a timber-like field; closely coordinated joints may support a calmer reading. Show corners, returns and cut panels so the grain does not stop awkwardly. Factory marking and crate labels should preserve the approved layout through installation.
Approve evidence and samples in stages
Begin with finish chips, then obtain a full current panel showing the complete pattern and edges. Build a multi-panel visual mock-up with real joints, supports, corners and lighting. Approve a production colour and texture range, not one perfect unit, and retain labelled control samples.
Request relevant reports for dimensions, strength, absorption, freeze–thaw exposure where required, fire classification and finish behaviour. Check the test specimen, method, date and product identity. The generic values preserved on the old page should not be applied to a current 13 millimetre proposal without a documented basis.
Release a verifiable order
Provide project location, application, elevations, profile drawing, orientation, system concept, design criteria, finish references, quantities, special pieces, mock-up stages, spares and programme. Ask the supplier to list assumptions, exclusions and deviations. Tie the quotation and approval samples to the same product revision.
Before release, establish a change-control path for substitutions in clay body, die, finish tooling, firing route or fixing hardware. Record the approved sample code, batch references and drawing issue in the submittal register. Agree how factory and site inspections will identify chips, cracks, dimensional exceptions and unacceptable pattern repetition. For future repairs, document removal access and store a practical quantity of labelled spare panels in suitable conditions. These steps make the approved appearance and system configuration traceable after the original procurement team has left the project.
Review terracotta rainscreen systems, the finish approval process and built work in the project gallery. Current verification should govern every exterior or interior decision.