An anti-slip terracotta clay paving brick cannot be approved from the phrase “anti-slip.” Slip performance depends on the exact surface, test method, condition, contamination, drainage, installation and maintenance. A defensible selection starts with the real wet-use scenario and current evidence for the proposed product.
Describe how the surface becomes wet
Map rainfall, splash, tracked water, irrigation, cleaning, spills and any process liquids. Note slopes, covered edges, entrances, ramps, drains, shade and places where water or debris may remain. Identify expected footwear, pedestrian groups, trolleys and maintenance equipment. “Exterior” is not a complete exposure description, and a dry interior result cannot answer a wet entrance question.
Define who owns cleaning and drainage after handover. Frequency, equipment, products, rinse water and response to spills all influence surface condition. The design team should turn these operating conditions into project criteria under the relevant jurisdiction, rather than asking the supplier for an undefined slip rating.
Confirm the exact brick identity
Request a current code and drawing showing length, width, actual thickness, surface, edge, rear profile, tolerances and unit mass. Ask whether FR770 or another designation now applies and whether the archived size remains available. A similar face, colour or nominal thickness does not establish that two products share performance.
Link each sample and report to the same code, finish and revision. For existing pavements, compare the proposed unit with measured and photographed originals. Record differences that may affect levels, joints, drainage or replacement work. Current project documents must control the order.
Specify slip evidence precisely
Method
Name the test method and project acceptance route required by the designer or authority.
Condition
State whether the surface is dry, water-wet or assessed with another relevant contaminant.
Specimen
Match code, dimensions, finish, orientation and any treatment to the proposed order.
Result
Record the measured result, classification, report date and limits of applicability.
Check whether manufacturing variation, wear or cleaning changes the assumptions behind the evidence. An archived “non-slip” label supplies none of this context. If a treatment is proposed, assess the treated system and its renewal cycle; do not assume a treatment is invisible or permanent.
Create an evidence matrix for each paving zone. A sheltered lobby edge, open walkway, ramp and food-service terrace may not share the same wetting or contamination scenario even when they use one brick. The matrix should name the criterion, submitted report, exact specimen, reviewer, decision and any condition attached to acceptance. This keeps a result from being applied beyond its documented scope.
Coordinate drainage and the paving assembly
Slip risk cannot be separated from water management. Draw the route from rainfall or cleaning water to channels, outlets and safe discharge. Coordinate falls, thresholds, utility covers, kerbs and adjacent finishes. Avoid isolated low points and details that interrupt drainage at the very zones expected to be wet.
The architect, engineer and system suppliers should define the supporting structure or formation, base or substrate, bedding or adhesive, joints, movement accommodation and edge restraint. Verify that the selected brick and installation materials suit the exposure and loads. Thickness alone is not a pavement design.
Test appearance, use and cleaning in a mock-up
Build a representative trial with the proposed bond, joints, slopes, drainage interface and adjacent material. Review several fired units for texture, shade, dimensions and warpage. The mock-up should show whether the surface traps dirt, whether joints disrupt or support drainage, and whether the intended cleaning method changes appearance.
Where the project process permits, use the approved trial to review realistic wet conditions with the responsible specialists. Keep the activity controlled and documented; a casual on-site walk is not a substitute for the specified test. Record accepted samples, cleaning products and any treatment as part of the approval.
Control installation and operational change
Set hold points for base or substrate acceptance, falls, levels, drainage outlets, brick batches, joints, movement details and final cleaning. Protect completed work from contamination and construction traffic. At handover, train the operator on the approved cleaning method and the need to keep drainage paths clear.
Monitor changes such as polishing, residues, algae, damaged joints, ponding or a different cleaning chemical. Record locations and investigate the cause before applying a new treatment. The terracotta surface guide can support a structured diagnosis, while the project gallery provides context for discussing paving applications.
Define triggers for review: a drainage alteration, change of cleaner, new event use, repeated slip report or visible surface wear. The operator should know who assesses the change and which records to retain. A stable maintenance routine is part of the approved condition; it should not drift through undocumented substitutions.
Release a traceable wet-area order
Align product code, drawing, approved samples, slip evidence, assembly, quantities, specials, spares, packing and delivery programme before release. Confirm pallet size and weight, lifting, storage and batch identification. Compare quotations on complete scope, including testing, mock-ups, freight and exclusions.
Handover records should include installed locations and batches, final drainage and joint details, inspection results, approved cleaning method and spare inventory. Use the terracotta floor tile range only as a starting point; current documents for the exact brick and site must govern approval.