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Expect to pay over £400 per m² for a copper roof. However, this can increase substantially depending on extras and factors such as the size of the roof and whether it’s a pitched or flat roof.
Cost Per m²
The rates below are for South East/Outer London regions given in m².
| Item | Labour cost / m² | Materials cost / m² | Cost per / m² |
|---|---|---|---|
| Structural Purlins | £3 | £35 | £38 |
| Slab Insulation - 120 thick Celotex | £7 | £22 | £29 |
| Metal deck | £7 | £36 | £43 |
| Underlayment | £4 | £7 | £11 |
| Plywood - 18 thick x 2 layers | £30 | £33 | £63 |
| Copper Roofing Layer including soldering | £77 | £96 | £173 |
| Plasterboard ceiling - 12.5 thick on battens | £38 | £13 | £51 |
| Total | £166 | £242 | £408 |
There may then be additional items to add in. These include:
| Item | Cost per / m |
|---|---|
| Copper Gutters | £38 |
| Copper Box Gutter | £110 |
| Copper Downpipes | £60 |
| Flashings | £25 - £40 (dependent on width) |
Out of all the metal roofing, copper is the most expensive.
Factors Affecting Cost
Although average prices have been given above, there are various factors that can affect this and are worth taking note of.
- Roof size – The above rates would apply to a small domestic roof of 10m² or less. However, for larger roof sizes, these rates could be reduced.
- Fluctuations in Copper Prices – Copper is a commodity so the price of the material can fluctuate regularly.
- Roof Structure and Design – Architects and contractors all design roofs slightly differently, so there may be some variance from the standard rates described above.
- Pitched vs Flat Roof – Laying copper to a pitch roof costs significantly more than a flat roof as they are more dangerous and are more complex to lay.
- Location – The above rates are for the South East/Outer London Area. You can use the following adjustments depending on where the roofing needs to be done. These are based on the BCIS and Spon indices.
| Region | % Adjustment |
|---|---|
| South East (Southampton, Oxford, Kent, Outer London) | 0 |
| Inner London | +4% |
| South West (Bristol, Exeter) | -4% |
| West Midlands (Birmingham) | -10% |
| East Midlands (Northampton, Nottingham, Leicester) | -10% |
| East Anglia (Cambridge, Norwich, Ipswich) | -5% |
| North West (Liverpool, Manchester) | -12% |
| Yorkshire and Humberside (Leeds, Sheffield) | -11% |
| North East (Newcastle, Sunderland) | -10% |
| Scotland (Edinburgh, Glasgow) | -6% |
| Wales (Cardiff, Swansea) | -9% |
| Northern Ireland (Belfast) | -12% |
Benefits
Copper has several advantages compared to traditional materials:
- Aesthetic Appeal – Copper is a great-looking material roofing material. It has a blue-green patina