UK · Updated 2026 · Explainer
Part Z & Embodied Carbon: Using Surplus Reclaimed Clay Roof Tiles in Wolverhampton
Whole-life carbon assessments are becoming mandatory on Wolverhampton projects. Reclaimed and surplus clay tiles is the fastest lever for reducing A1–A3 embodied carbon in West Midlands. This 2026 guide shows the numbers and the evidence you need.
Embodied carbon savings
Reclaimed clay tiles typically avoids 60–95% of the A1–A3 embodied carbon of a new equivalent. On a mid-size Wolverhampton project this can equal 4–12 tonnes CO₂e avoided.
Part Z timeline and what it requires
- Whole-life carbon assessment on all major projects
- Reporting to a central UK register
- Alignment with RICS WLCA methodology
- Evidence of material provenance
Building a compliant evidence pack in Wolverhampton
- Yard invoice with weight/quantity
- Photos and batch references
- Manufacturer EPD comparison for baseline
- Site delivery notes
Cost of clay tiles vs carbon benefit
| Grade | Typical price | Notes |
|---|---|---|
| Job-lot / bulk | £850 per 1,000 | Merchant clearance, palletised |
| Standard graded | £1,725 per 1,000 | Sorted, ready-to-fit stock |
| Heritage / premium | £2,600 per 1,000 | Character grade, hand-picked |
Frequently asked questions
+Is Part Z law yet?
Not yet fully — it's a private-members bill and industry alignment. Adoption on public and BREEAM projects is already widespread.
+How is carbon quantified for surplus?
A1–A3 emissions are usually set to zero for genuine reclaim; A4 (transport) uses actual distance.
+How many clay tiles per m²?
Plain: 60/m². Pantiles: 16/m². Peg: 55–65/m².
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