Dreadnought Machine Made Plain Tile
Dreadnought’s machine-made plain tile in eight Staffordshire clay colours, from the dark blue-grey Staffordshire Blue through the heathers and brindles to Plum Red. Most colours are offered smoothfaced or sandfaced. Dreadnought’s colours come from the mineral content of the Etruria Marl clay and from control of the kiln atmosphere rather than applied stains or coloured sands, so the colour is through the body and does not fade.
Carbon and evidence
Product Evidence
Evidence currently held for the Dreadnought Tiles product record.
Recorded Carbon Result
A1–A3 GWP-FOSSIL per tonne of clay product. The declaration also prints a GWP-total of 6.67, which is not recorded because it is physically impossible — its −176 biogenic credit is five orders of magnitude larger than the packaging carbon the declaration itself reports. Note too that this is a works-wide figure covering bricks, pavers and quarry tiles as well as roof tiles, not a roof-tile-specific one.
Indicator: GWP-fossil
Staffordshire Etruria Marl Clay Brick, Paving & Roofing Products (HUB-6362)A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.
Environmental Product Declaration
EPD recorded- Coverage
- Product family
- Declared unit
- 1 tonne of clay product
- Programme
- EPD Hub
- Registration
- HUB-6362
- Standard
- EN 15804:2012+A2:2019/AC:2021, ISO 14025
- Valid until
- 2031-05-19
- Verification
- Third-party verified
A WIDE grouped declaration: it covers Dreadnought Tiles AND Ketley Brick, spanning Class A engineering bricks, clay pavers, quarry tiles, clay roof tiles with fittings (BS EN 1304), brick slips and special shapes. The declaration's stated rationale is that "the environmental impacts per tonne are identical regardless of the final shape or size", so this is NOT a roof-tile-specific figure — it is one number for the whole works output. Manufacturer of record: Hinton Perry & Davenhill Ltd.
Reported GWP Modules
Displayed as stored; modules are not added together here.
A1–A3
182 kgCO₂e
per 1 tonne of clay product
Service Life — the B4 Replacement Input
150 years · EPD reference service life
≈1 installation over a 60-year building study period.
Evidence Sources
Comparison Status
This result should be displayed for information only and not ranked against another product.
- • The result is not identified as GWP-total.
- • The EPD is not linked to an evidence source.
Design & Specification Notes
Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.
Dreadnought’s machine-made plain tile in eight Staffordshire clay colours, from the dark blue-grey Staffordshire Blue through the heathers and brindles to Plum Red.
Typical Uses
- •Roof coverings
- •Waterproofing layer
- •Weather protection
Key Performance
High durability in wet exposure and wind uplift.
Specification Actions
- •Confirm the current EPD covers the selected product, finish and manufacturing route.
- •Calculate transport distances for primary materials.
- •Document material reuse or reclaimed content percentages.
Indicative Health & Indoor Air
Specification
- Finish
- Machine made clay plain roof tile, smoothfaced or sandfaced
- Service life
- 150 years