Atlas index
Panel · 30 mm
Clay-Based — indicative fig. M·46

High-performance terracotta cladding system offering superior thermal mass, weather resistance, and aesthetic versatility for Australian building facades

01 Physical

Density 1800kg/m³
Specific gravity 1.8
Porosity 15%
Water absorption 4.5%
Hardness 6.5
UV resistance Excellent
Chemical resistance High
pH tolerance 3-14
Surface roughness 2.5µm

02 Mechanical

Tensile strength 8MPa
Compressive strength 45MPa
Flexural strength 15MPa
Shear strength 12MPa
Poisson's ratio 0.24
Impact resistance Q4
Creep resistance Negligible

03 Thermal

Thermal conductivity 0.7W/m·K
Specific heat 900J/kg·K
Thermal expansion 5.5×10⁻⁶/°C

04 Compliance & Fire First question

Combustibility class Non-combustible
Fire resistance level 120/120/120
Flame spread index 0
Smoke dev. index 0
Heat release rate 0

05 Sustainability & Health

Embodied carbon 84kgCO2e/m²
Carbon footprint 280
Embodied energy 1260MJ/kg
Water footprint 450L/kg
Recyclability 100%
Recycled content 0%
Renewable content 0%
Circular score 75
VOC emissions 0
Toxicity rating Non-toxic
LEED contribution 4

06 Durability · Cost · Logistics

Expected lifespan 75+ years
Maintenance interval 2-3 years
Warranty period 15 years
Material cost (range) $180-350/m²
Material cost (per unit) $265/m²
Lead time 8-16 weeks
Lifecycle cost $15/m²/year
Annual maintenance $2-5/m²
Market availability Moderate

07 Assessment

Advantages

  • Excellent thermal mass (4x better than solid metal)
  • Non-combustible (suitable for BAL-FZ applications)
  • UV resistant and colour-fast
  • Low maintenance (2-3 year cleaning cycle)
  • 100% recyclable
  • Pressure-equalised rainscreen system
  • High impact resistance
  • Natural ventilation and moisture management

Constraints

  • Higher initial cost than some alternatives
  • Requires specialised fixing systems
  • Weight considerations for structural design
  • Limited local manufacturing in Australia
  • Potential for size variations due to firing process
  • Professional installation required

08 Applications

A1 Commercial building facades
A2 Multi-residential cladding
A3 Educational facilities
A4 Healthcare buildings
A5 High-rise construction
A6 Bushfire-prone area construction
A7 Heritage building renovations
A8 Rainscreen ventilated facades

09 Sources & Standards

Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.

MATERIALS ATLAS · CL·AD M·46 · data indicative — verify per project