[ Specifications / Sector 06 ]

Bespoke Metalwork

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Get a Quote Technical Spec

01 / OVERVIEW

Custom Metallurgy & Architectural Detailing

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02 / SERVICES

Bespoke Metal Fabrications

[ SPEC 02-A ]

Valley Gutters & Custom Drainage

[ SPEC 02-B ]

Chimney Flashings & Saddles

[ SPEC 02-C ]

Dormer Window Cladding

[ SPEC 02-D ]

Ridge, Hip & Verge Details

03 / MATERIAL SPECIFICATION MATRIX

Metal Specifications for Custom Work

Compare the primary architectural metals utilised in custom-forming details and flashing profiles.

Material	Standard Gauge	Fabrication Method	Ideal Application
Architectural Zinc	0.7mm - 0.8mm	On-site forming, soldering, lock joints	Dormer roofs, vertical wall panels, clean ridges.
Natural Copper	0.6mm - 0.7mm	Lead-beating, hand-soldering, seam folding	Complex saddle flashings, valleys on slate, heritage features.
Prefalz Aluminium	0.7mm - 1.0mm	Machine-bending, mechanical joints	Fascia borders, custom cladding trims, custom RAL outlines.
Milled Lead	Code 4 - Code 8	Bossing, lead-welding, beating	Valley linings, chimney flashings, traditional roof terminations.

[ PROJECT PLANNING ]

Request a Bespoke Metallurgy Estimate

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04 / TECHNICAL DETAILS

Technical Specifications

Installation guidelines, British standards compliance, and fabrication tolerances.

[ Lead Welding ]

All lead joint work is executed using oxy-acetylene welding in strict accordance with BS 6915 guidelines.

[ Zinc Soldering ]

Zinc sheet joins are hand-soldered using standard zinc solder fluxes and copper soldering bits to guarantee watertight integrity.

[ Valley Expansion ]

Custom valley linings incorporate step details or expansion joints at maximum 6-meter runs to absorb thermal expansion.

[ Fixings Security ]

Only non-galvanic matching metal tags, copper nails, or stainless steel clips are used to secure bespoke installations.

05 / FAQ

Frequently Asked Questions

Do you fabricate custom details on-site or in the workshop?

We use both methods. Complex geometries (e.g. saddle flashings, window surrounds) are measured on-site, fabricated in our workshop for precision, and then adjusted and welded/soldered on-site for a perfect fit.

Can we choose the metal for our custom verges or valleys?

Yes. We match the metal to the overall roof envelope (zinc, copper, aluminium, or lead) to guarantee galvanic security and visual consistency.

What is the standard warranty on bespoke metal fabrications?

Because we use architectural-grade metals (such as zinc, copper, or lead) and standard-compliant welding/soldering jointing, custom work holds the same long life expectancy as our primary roofs.

06 / CASE STUDIES

Bespoke Metalwork Showcase

Explore our recent custom sheet metal fabrication, dormer installations, and specialised architectural details. Click any project to view.

[ Natural Zinc ]