Roller-Kiln Production at 1,180°C
Roller-kiln firing at 1,180°C is the production step that converts formed refractory clay into finished terracotta panels. This article explains what roller-kiln firing involves and how a specifier should interpret this manufacturing detail alongside project-specific technical data.
Published · 4 min read
Firing is the production step that turns formed refractory clay into a finished terracotta façade panel, and it takes place in a roller kiln at 1,180°C. For anyone specifying the product, it helps to understand what this step actually involves — and, just as importantly, what it does and doesn't tell you about a given project's performance requirements.
What a roller kiln does
A roller kiln generally conveys ceramic products through a heated kiln on rollers. For this product range, the verified information is limited to roller-kiln firing at 1,180°C. Kiln length, zones, firing curve, atmosphere, throughput and comparative process performance have not been supplied and should not be presented as company-specific facts.
Why 1,180°C specifically
The 1,180°C figure is the confirmed firing temperature for the 25 mm, 18 mm and 30 mm product families. No density, stability threshold or other performance result should be inferred from that temperature without verified technical documentation.
What firing establishes
Firing converts the formed clay into the finished ceramic panel. The exact relationship between firing, density, surface treatment, colour and verified exterior performance has not been documented in the supplied technical data. Custom colour production is separately stated to require technical evaluation, production-condition review and physical sample approval; see colour sample approval.
What firing temperature does not establish on its own
Knowing the firing temperature is useful context, but it is not a substitute for project-specific performance data. Water absorption, breaking strength, flexural strength, freeze-thaw behaviour and reaction-to-fire classification all depend on verified test reports for the specific product and are not values that can be inferred from the firing temperature alone. Where a project needs one of these figures, the correct route is to request the relevant verified document rather than assume a value based on general firing-temperature knowledge.
Production consistency across an order
Because all three panel families go through the same roller-kiln process at the same controlled temperature, a project combining panels from different families — for example, single-skin panels at one location and heavy-duty double-skin panels at another on the same building — is drawing from a consistent production basis in terms of material and firing, even though the panels differ in cross-section and format. Full family and format detail is on the product families page.
From forming to firing: the stages around the kiln
Firing sits in the middle of a longer production sequence: refractory clay selection, material preparation, forming into the panel's final shape, controlled drying, roller-kiln firing at 1,180°C, cooling, then dimensional and visual control before packaging. Each stage before firing affects the outcome at the kiln — inconsistent forming or inadequate controlled drying, for example, can affect how a panel fires — which is part of why production consistency depends on control across the whole sequence, not the firing temperature in isolation. The manufacturing page outlines this full sequence.
Quality control after firing
Once panels leave the kiln and cool, dimensional and visual control checks the fired result against expected tolerances and appearance before panels proceed to packaging. This is a separate step from the pre-production sample approval described elsewhere — pre-production sampling confirms a colour or format is feasible before a full order is committed, while post-firing quality control checks that an actual production run has met the expected standard. Specific tolerance figures and inspection criteria are documentation-specific and should be requested for the project in question via the technical resources page.
Comparisons with other firing methods require evidence
No comparative kiln study, production-capacity figure or process-efficiency result has been supplied. The presence of a roller kiln should therefore be recorded as a manufacturing fact, not used to claim superior consistency, energy performance, speed or quality compared with another firing method.
Why manufacturing detail matters even though it is not a performance guarantee
Understanding that the panels are fired in roller kilns at 1,180°C helps a specifier record the confirmed manufacturing basis. Performance properties such as strength, water absorption, reaction to fire and freeze-thaw behaviour are documented separately through current verified reports.
Questions to ask beyond the firing temperature
For a technical submittal, request the declared product standard, dimensional tolerances, individual and area weight, water absorption, breaking or flexural strength, reaction-to-fire classification, freeze-thaw test basis, surface and colour acceptance criteria, and the approved fixing details. For manufacturing review, ask which inspection records, batch identifiers and guarantee documents will accompany the project. These requests turn a general process fact into a document trail that can be checked by the façade consultant and procurement team.
Do not convert the 1,180°C figure into an assumed fire classification, durability period or comparison with another material. Firing temperature and finished-product declarations answer different questions, and both should be recorded in the correct part of the specification.
In tender documents, place the firing fact under manufacturing information and place tested properties in a separate schedule with document references and revision dates. This simple separation makes later technical review clearer.
It also prevents an accurate process statement from being mistaken for an unsupported compliance declaration.
Where to take this next
For a project that needs to move from general manufacturing understanding to project-specific documentation — test reports, declarations, or technical data sheets — the technical resources page lists what is available on request, and a project enquiry is the fastest way to request documents tied to a specific panel family and format.