Lead Recycling and Waste: Lead Sheet as Hazardous Waste, Dust Control Under COSHH and EWC Codes

Summary

Lead has extraordinarily high recycling value compared to most construction materials. It is one of the most recycled metals in the world — approximately 80% of UK lead demand is met by recycled lead — and stripped lead sheet from roofing has a ready market with scrap metal dealers and specialist recyclers. This is good news for tradespeople: unlike many forms of hazardous waste, lead sheet is rarely charged for disposal and often generates a payment. However, the high value of lead also makes it a target for metal theft, and the legal requirements around its disposal are strict.

The hazardous waste classification surprises many tradespeople, particularly those who have been disposing of lead offcuts and stripped sheet informally for years. Since the Hazardous Waste Regulations 2005 (England and Wales) came into force, lead and its alloys fall within the hazardous waste regime in most circumstances. This means consignment notes, registered carriers, and licensed facilities — not the general skip, not the back of an unlicensed scrap merchant's van, and not the municipal tip without prior arrangement.

Beyond the waste disposal side, cutting and working lead generates dust and fume that are genuine occupational health hazards. Lead is a cumulative toxin with no safe lower threshold, and the Control of Lead at Work Regulations 2002 impose specific obligations on employers working with lead. Blood lead monitoring, PPE requirements, hygiene facilities, and specific control measures for dust suppression are all mandatory above certain exposure levels. This article covers both sides: the environmental and waste regulations, and the COSHH/CLAW requirements for protecting workers.

Key Facts

• EWC code for lead and lead alloys — 17 04 03 (construction and demolition waste: lead); classified as hazardous in most circumstances
• Hazardous waste threshold — 500g minimum weight before consignment note required in England; below this threshold lead can still be classified hazardous but paperwork requirements may be simplified (check current EA guidance)
• Consignment note — must accompany every transfer of hazardous lead waste; five-part form completed by producer (contractor), carrier, and receiver
• Registered waste carrier — anyone transporting lead waste for a third party (i.e., taking it away on behalf of the client) must be registered with the Environment Agency as a waste carrier
• Own waste exemption — a contractor transporting their own lead offcuts in their own vehicle to a licensed facility does not need a carrier licence but does still need consignment notes
• Licensed scrap dealers — many licensed scrap metal dealers hold the appropriate hazardous waste permits; confirm before delivery
• Scrap value — lead typically commands £1.00–£1.80 per kilogram at UK scrap dealers (prices fluctuate with the London Metal Exchange); 100 metres of Code 5 flashing (~10kg/m²) weighs approximately 1,000kg and may be worth £1,000–£1,800
• COSHH Regulations 2002 — require risk assessment for exposure to lead dust and fume; controls must be implemented before exposure occurs
• CLAW Regulations 2002 — the specific lead standard; sets occupational exposure limit (OEL) for lead in air at 0.15 mg/m³ (8-hour TWA)
• Blood lead action level — 25 µg/dL for women of reproductive capacity; 50 µg/dL for all other workers; if exceeded, remove from lead work and investigate controls
• No dry cutting or grinding — angle grinder on lead generates fine respirable dust; use lead knife, snips, or dedicated guillotine; if machine cutting needed, use wet methods
• Old building lead — lead on pre-1960s buildings may be contaminated with lead-based paint; this requires an enhanced COSHH assessment and potentially a separate risk assessment for lead paint
• No eating or drinking on site — ingestion is a significant lead exposure route; hands must be washed before eating, drinking, or using the toilet; PPE must be removed before eating
• Site signage — where lead work is ongoing, signs indicating lead hazard must be posted at the work area

Quick Reference Table

Detailed Guidance

Hazardous Waste Classification for Lead

The Hazardous Waste Regulations 2005 (England and Wales) — and their Scottish and Northern Irish equivalents — implement the EU Hazardous Waste Directive requirement that certain waste types be subject to enhanced controls. Lead and lead alloys are included in Annex II of the Directive and carry EWC code 17 04 03.

The "hazardous" classification does not mean lead sheet is particularly dangerous to handle in the quantities typically encountered in roofing work — it reflects the environmental risk posed by uncontrolled disposal (lead in landfill can leach into groundwater). However, it does impose specific legal obligations that cannot be ignored.

The key obligations for a roofing contractor stripping lead are:

1. Identify the waste: Confirm it is lead (not a zinc or aluminium look-alike) and note the approximate weight.
2. Complete a consignment note: The consignment note (previously called a transfer note for non-hazardous waste) records who produced the waste, who collected it, who will receive it, and where it will go. The Environment Agency provides a standard form; it can be completed electronically.
3. Use a registered carrier: If you are taking the lead away on behalf of the building owner/client, you must be registered as a waste carrier with the Environment Agency. Registration is straightforward and costs approximately £154 for a standard upper-tier registration (3-year validity). If you are transporting your own waste in your own vehicle (offcuts generated by your own work) to a facility, you are exempt from carrier registration but still need consignment notes.
4. Use a licensed facility: The receiving facility must hold the appropriate environmental permit or exemption. Licensed scrap metal dealers, hazardous waste facilities, and some civic amenity sites with hazardous waste sections are suitable.

Keep consignment note records for at least 3 years. The Environment Agency can inspect and issue fixed-penalty notices or prosecute for non-compliance.

Scrap Value and Finding Licensed Dealers

The scrap value of lead makes it one of the few hazardous wastes where disposal generates income rather than cost. London Metal Exchange (LME) lead prices fluctuate, but UK scrap dealers typically pay 70–85% of the LME spot price for clean lead sheet.

At an LME price of around £2,000 per tonne, a contractor might realise £1,400–£1,700 per tonne for clean stripped lead sheet. Code 5 lead sheet (2.24mm thick, 25.40 kg/m²) means approximately 40m² of stripped roof material weighs one tonne. For a reasonable-sized domestic re-lead job, the scrap value of the stripped material can offset a significant portion of material costs.

Before stripping, confirm with your scrap dealer what documentation they require. Most licensed dealers accepting hazardous waste will require a completed consignment note, proof of identity, and — under the Scrap Metal Dealers Act 2013 — photo ID and payment by bank transfer (cash payments for scrap metal are illegal in England and Wales). Keep your scrap receipt as evidence of lawful disposal.

Do not allow clients to arrange removal of stripped lead themselves. If they pass it to an unregistered collector, the legal duty of care may remain with the contractor who produced the waste. Issue your own consignment note and use your own registered carrier.

COSHH Risk Assessment for Lead Work

The Control of Substances Hazardous to Health Regulations 2002 require employers (and self-employed persons) to carry out a suitable and sufficient risk assessment before undertaking any work liable to expose workers to hazardous substances. For lead, this means:

Identify the hazard: Lead dust and fume are the primary hazards. In normal leadwork (cutting, bossing, dressing, soldering), the main risk is fine lead dust from cutting and lead fume from soldering or burning. Fume concentrations during soldering can be significant in enclosed spaces.

Assess the exposure: For a leadworker doing intermittent cutting and dressing outdoors, actual airborne lead concentrations are likely to be well below the Occupational Exposure Limit of 0.15 mg/m³. For work in confined spaces, enclosed loft voids, or where extensive cutting or burning is involved, exposure may approach or exceed the OEL and requires air monitoring.

Implement controls: The hierarchy of controls applies: elimination (e.g., use pre-cut lead sheet to reduce site cutting), substitution (not applicable for lead), engineering controls (local exhaust ventilation at burning stations), then PPE. For typical roofing leadwork outdoors, the practical controls are: use snips or a knife rather than power tools; use wet methods if machine cutting is unavoidable; wear an FFP3 half-mask when cutting in confined spaces; wash hands before breaks and at end of shift.

Health surveillance: If exposure above the action level (0.10 mg/m³ TWA) is likely or confirmed by air monitoring, the employer must arrange periodic blood lead testing. The CLAW Regulations 2002 specify the testing frequency and action/suspension levels.

CLAW Regulations 2002: Key Requirements

The Control of Lead at Work Regulations 2002 are the specific UK standard for occupational lead exposure. They impose the following on employers whose workers are exposed to lead:

Exposure assessment: Before work starts, assess whether exposure is likely to be significant (i.e., above the action level of 0.10 mg/m³ for inorganic lead). If uncertain, carry out air monitoring.

Control measures: Implement controls to prevent or adequately control exposure. For roofing leadwork this typically means: no dry power cutting, no grinding, wet methods if machine cutting required, local exhaust ventilation (LEV) at burning/soldering stations, and appropriate RPE (respiratory protective equipment).

Biological monitoring: Blood lead monitoring is required where exposure is significant. Frequency depends on blood lead levels — typically annually for workers with low blood lead, quarterly if approaching action levels. A registered occupational health provider must carry out and interpret the testing.

Blood lead action and suspension levels:

• For women of reproductive capacity: action level 25 µg/dL; suspension level 30 µg/dL
• For all other workers: action level 50 µg/dL; suspension level 60 µg/dL

If a worker's blood lead reaches the suspension level, they must be removed from lead work immediately and kept off until blood lead falls below the return level. Reinvestigate controls before returning the worker.

Hygiene facilities: Where exposure may be significant, provide: a dedicated area for removing and storing work clothing; washing facilities including hot water, soap, and nail brushes; a clean area for eating and drinking that is separate from the lead work area. Workers must not eat, drink, or smoke in the lead work area.

Working on Older Buildings: Lead Paint and Contaminated Lead

Lead sheet on buildings constructed before the mid-1960s requires particular care. Before the widespread adoption of lead-free paints, lead-based paint was routinely applied to lead flashings, gutters, and soakers — and to the adjacent timber, render, and masonry. Stripped lead from these buildings may carry a skin of lead paint, which significantly increases the dust hazard during handling, cutting, and disposal.

For such work, the COSHH assessment must specifically address lead paint. Key additional controls include: full face-fit-tested FFP3 respirator during stripping and handling; disposable overalls to prevent contamination of work clothing; double-bagging of contaminated offcuts before removal from site; wet wiping of surrounding surfaces before work begins to reduce loose lead dust.

The disposed waste category changes if lead paint is present — consult your licensed facility about whether additional paperwork or separation is required. Some hazardous waste facilities may require paint-contaminated lead to be segregated from clean lead sheet.

Always check the substrate beneath old lead for lead paint before commencing stripping work. If you suspect lead paint on adjacent surfaces, treat the whole assembly as lead-contaminated and apply enhanced controls from the outset.

Site Signage and Housekeeping

Where lead work is ongoing, particularly where cutting or burning is involved, post warning signs at the work area boundary. A standard "CAUTION: LEAD WORK IN PROGRESS" sign with the appropriate lead hazard pictogram is sufficient for most roofing applications. Signs must be visible from all approaches to the work area.

Site housekeeping during lead work:

• Do not use a dry brush to clean up lead dust and cuttings — use a damp cloth or a vacuum fitted with a HEPA filter
• Collect all lead offcuts and cuttings into a dedicated container labelled "hazardous waste — lead"
• Do not pour lead-contaminated water (from wet cutting) down storm drains; collect it in a sealed container and dispose as liquid hazardous waste
• At end of shift, all workers must remove and store their work clothing in a sealed bag before leaving the work area; lead dust on clothing is carried home and can expose family members

Frequently Asked Questions

My scrap dealer says they do not need a consignment note. Are they right?

Probably not, in most circumstances. Unless your load weighs less than 500g (extremely unlikely for stripped lead sheet) or the dealer holds a specific exemption from the Environment Agency, a consignment note is required. If a dealer refuses to accept consignment notes, this is a warning sign that they may not be operating lawfully. Use a different dealer and keep records.

Can I throw small lead offcuts in a builders' skip?

No. Lead is classified as hazardous waste regardless of the quantity. A builders' skip is general waste and the skip company's waste disposal licence will not cover hazardous materials. Disposing of hazardous waste in an unlicensed container is an offence under the Environmental Protection Act 1990. Keep lead offcuts separate from general waste and dispose of them through a licensed hazardous waste channel.

Does the scrap dealer payment count as income I need to declare?

Yes. Proceeds from scrap metal sales are taxable income. Under the Scrap Metal Dealers Act 2013, payment must be made by bank transfer (not cash), which automatically creates a paper trail. Include scrap lead income on your self-assessment return or pass the receipt to your accountant. Keep the receipt as both a financial record and proof of lawful disposal.

I work alone as a self-employed leadworker. Do CLAW Regulations apply to me?

Yes. The CLAW Regulations 2002 apply to the self-employed in the same way as to employers. You are responsible for your own COSHH and CLAW assessments, your own health surveillance (blood lead testing) if exposure is significant, and your own hygiene arrangements. Self-employed workers cannot lawfully opt out of health surveillance requirements on the grounds that they are only risking themselves — lead is treated as a special case under UK law because cumulative exposure effects are severe and irreversible.

What should I do if I find old mercury-containing materials when stripping a historic lead roof?

Mercury was occasionally used in gilding and in certain joint sealants on very old buildings. If you find liquid metal, metallic-smelling deposits, or red/orange cinnabar-coloured material during stripping of a historic roof, stop work immediately. Do not attempt to collect or dispose of mercury yourself — it is classified as a priority hazardous substance under the Water Framework Directive and requires specialist removal. Contact your waste management company or the local Environment Agency office for guidance before continuing.

Regulations & Standards

• Hazardous Waste Regulations 2005 (England and Wales) — Primary regulations governing lead waste classification, consignment notes, and carrier registration

• Environmental Protection Act 1990, Section 34 — Duty of care for waste producers; applies to all construction waste including lead

• Control of Lead at Work (CLAW) Regulations 2002 — Specific requirements for workplaces with lead exposure: assessment, monitoring, biological surveillance, hygiene

• Control of Substances Hazardous to Health (COSHH) Regulations 2002 — Overarching framework for hazardous substance risk assessment and control

• Scrap Metal Dealers Act 2013 — Requires licensed scrap dealers, bans cash payments, requires proof of identity

• EWC Code 17 04 03 — European Waste Catalogue code for lead from construction and demolition waste

• HSE EH40/2005 (4th edition) — Workplace Exposure Limits; sets OEL for inorganic lead at 0.15 mg/m³ (8-hour TWA)

• HSE: Control of Lead at Work — Approved Code of Practice and Guidance for CLAW Regulations 2002

• Environment Agency: Hazardous Waste — Guidance on consignment notes and registered carrier requirements

• Lead Sheet Association Technical Manual — Includes guidance on responsible waste disposal for lead sheet

• HSE COSHH Essentials: Lead Sheet Roofing — Industry-specific control guidance for leadwork tasks

• lead fixings and tacks — Correct fixings to avoid zinc contamination of lead offcuts

• lead and other metals compatibility — Identifying lead on site versus zinc or aluminium

• lead on listed buildings — Additional COSHH considerations for old building lead

• lead bossing techniques — Dustless techniques; why bossing is preferred over cutting