Digital material passports - Clayworks

Clayworks clay plasters are unique blends of unfired clays mixed with minerals and pigments. They provide a healthy, breathable finish for internal walls and ceilings.

Manufactured in Cornwall from abundant raw materials, they are amongst the most sustainable wall finishes available. Recyclable, compostable, reusable, and containing no toxic ingredients, VOCs (harmful chemicals released during and after application), or synthetics, Clayworks clay plasters are healthy for the planet, the building fabric, and the occupants.

As well as being 100% natural, Clayworks clay plasters are also high performance. Naturally regulating relative humidity, they allow buildings to breathe while absorbing toxins and odours. They also help to passively regulate temperature, are acoustic-absorbing and are easily repaired. Application is with the same skills and tools as other wall plasters.

Clayworks clay plasters provide a unique aesthetic - with a depth of cloudy tone and texture not found in conventional wall finishes. A seamless finish, they are ready-mixed in a wide range of mineral pigmented colours with extraordinary textures, from luxurious silkiness to coarse and rustic.

DIGITAL MATERIAL PASSPORT

Product Name: Clayworks (Smooth)

Product Site: Natural clay wall finishes & clay wall systems from Clayworks UK (clay-works.com)

Supplier: Clayworks

Material Origin

• Raw Material Sourced:
  Not disclosed
• Manufacture Site:
  Cornwall, England
• Biogenic Content: (i.e., natural material content/sequestered carbon info):
  100%
• Recycled Content:
  0%

Embodied Carbon

• Upfront Embodied Carbon:
  0.05 kgCO₂e/m²
• Biogenic Carbon:
  -0.00921 kgCO₂e/m²
• Product Lifecycle Embodied Carbon:
  0.68 kgCO₂e/m²
• Life Span:
  60 years

Product EPD is available online

Circularity

• Takeback schemes:
  None available
• Reuse Potential:
  At the end of its service life, clay plaster can be recycled and reused through a simple low-energy process.
• Warranties:
  10 years

Health & Wellbeing

• Material Emissions:
  Minimal VOC emissions (third-party verified)
• Material Content:
  Minimal VOC content (third-party verified)
• Ingredient Transparency:
  Undisclosed, Kaolin, blended sand (third-party verified)
• Hazardous Materials:
  Inert & non-toxic
• Alignment with WELL:
  2/7 credits

Certifications

• Euroclass A1 Fire Rating to EN13501 and EN15824 international standards.
• EPD, HPD, VOC Emissions Certificates, Light Reflectance Value Measurements: Tested to BS.8493:2008+A1:2010.
• Planet Mark Certified
• Working towards ISO 14001 and 9001

What is a digital material passport?

A material passport is a digital document listing all the materials that are included in a product or construction during its life cycle in order to facilitate circularity decisions in supply chain management at the end of the building life.

At Cundall, we want to create a passport to materials/products that will also provide information before its use so designers and contractors are capable of making conscious decisions of products that could affect the embodied carbon and health well-being of a project, facilitating the inclusion of the best low carbon and/ healthy materials that align with their design.