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BS 476 Fire Rated ACP | British Fire Test Aluminum Composite Panel | DERACP

Update:2026/9/16 7:46:05 Views:0
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Aluminum Composite Panel · Project Supply
British fire-test specification · project review

BS 476 Fire Rated ACP for Legacy Specifications & International Projects

Source a BS 476 aluminum composite panel by the exact panel build and the evidence your project actually requires. DERACP supports architects, façade contractors, distributors and project buyers reviewing fire-rated ACP / ACM constructions, finishes, sizes, samples and export documentation.

FR / mineral-core direction PVDF & project coatings Custom sizes & colors Submittal-focused RFQ
DERACP fire rated aluminum composite panel sheets displayed above flame background
Actual DERACP website product image. Fire performance must be confirmed against the exact panel construction and applicable report.
20+ yearsACP manufacturing experience stated by DERACP
6 linesProduction-line capability stated by DERACP
Custom buildCore, skins, coating, size, finish and packing review
Export supplySpecification, sample, packing and shipment coordination
Quick answer

What Does “BS 476 Fire Rated ACP” Actually Mean?

The phrase is commonly used by buyers searching for an aluminum composite panel with British fire-test evidence. In technical procurement, however, the words BS 476 are incomplete unless the tender identifies the relevant part, the tested specimen, the report scope and the intended end use.

Featured answer
A BS 476 fire rated ACP usually refers to an ACP / ACM panel evaluated under legacy British fire-test methods, most commonly BS 476 Part 6 for fire propagation and/or BS 476 Part 7 for surface spread of flame. The result belongs to the construction tested. A different core, aluminum skin, total thickness, coating, mounting method or substrate should not automatically inherit the same fire claim.
2026 specification alert for England:

Approved Document B removed references to BS 476 for reaction to fire and roofs from 2 March 2025, subject to transitional provisions. That means a legacy “BS 476 Class 0 / Part 6 & 7” clause should not simply be copied into a current England project without review. For new specifications, confirm the required BS EN / EN 13501 route and any system-level façade requirements with the architect, fire consultant and building-control team. Review the current GOV.UK guidance.

BS 476 Part 6
Legacy fire-propagation method

Part 6 historically assessed the contribution a largely flat product or assembly makes to fire growth and expressed the result through a fire propagation index. It was widely associated with internal wall and ceiling lining assessments and with older “Class 0” procurement language.

BS 476 Part 7
Legacy surface-spread-of-flame classification

Part 7 classified how flame spreads over the surface of a product under the prescribed test. A Part 7 result is not the same thing as a Part 6 result, a fire-resistance rating in minutes, an EN 13501 classification or a large-scale façade-system test.

Avoid the common specification error

British Fire Test ACP Cladding: Product Evidence Is Not the Same as Wall-System Evidence

A commercial search for “British fire test ACP cladding” can mix together several standards that answer different questions. Separating the test route before requesting prices prevents false equivalence between products and helps the project team identify the evidence that really matters.

BS 476 Part 6 / 7

Legacy British reaction-to-fire test routes used for product-level behavior such as fire propagation and surface flame spread.

Not a complete external-wall system test. Current acceptance depends on jurisdiction, date and project route.

EN 13501-1

European reaction-to-fire classification used to classify construction products through defined test evidence and classification rules.

For current England Approved Document B reaction-to-fire specifications, this is the relevant classification direction rather than legacy BS 476 national classes.

BS 8414 / BR 135 route

Large-scale testing / assessment of an external wall system, including cladding and other wall components in a defined assembly.

Changing insulation, cavity, panel, membranes, fixings or other components can move the proposed system outside the tested evidence.

What a careful buyer should request

  • The exact standard and part named in the tender or consultant clause.
  • Report number, laboratory, issue / revision date and tested product identity.
  • Total panel thickness, face and back aluminum gauges, core and coating represented by the report.
  • Mounting, substrate, orientation or other field-of-application limitations that affect the claim.
  • A written statement of which DERACP construction is being quoted against the requested evidence.

What a buyer should not assume

  • “Fireproof ACP” is not a complete technical fire classification.
  • A Part 7 result does not automatically prove Part 6 performance or vice versa.
  • A BS 476 result does not automatically equal A2-s1,d0 or another EN 13501-1 class.
  • A tested loose panel does not establish compliance of the installed rainscreen or curtain-wall system.
  • A report for one thickness or core should not be copied to an untested variant without technical justification.
Panel architecture

Build the ACP Specification From the Layers Outward

Fire-related ACP procurement is more reliable when the quotation, sample, report review, production order and packing marks all refer to the same controlled construction.

Protective filmTemporary surface protection; project printing and peel behavior can be agreed for production and fabrication.
Exterior coatingPVDF, FEVE or another project-approved finish selected around exposure, color, gloss and maintenance requirements.
Front aluminum skinArchitectural gauge selected for flatness, routing, folding and the report / project construction being reviewed.
Fire-rated core directionMineral-modified FR or more mineral-dominant core direction according to the classification, project route and exact evidence required.
Rear aluminum skinBack skin gauge should be stated separately rather than hidden inside total panel thickness.
Back coating & identificationService coating, batch identity, order marks and traceability requirements agreed for project supply.
20+years of ACP manufacturing experience stated by DERACP
6production lines stated by DERACP
3–6 mmcommon project thickness range referenced across DERACP information; final build is project-specific
0.08–0.50 mmaluminum-skin range referenced across different DERACP ACP categories; exact facade build must be confirmed
RFQ-ready framework

BS 476 Aluminum Composite Panel Specification Table

Use the table to normalize quotations before comparing price. Values are purchasing directions, not a declaration that every configuration carries the same fire-test evidence.

Specification field Project direction What to verify before approval
Fire-test requirement Legacy BS 476 Part 6 and/or Part 7 only where the project or market still requires and accepts that route. Exact standard edition, report number, specimen, classification / indices, report scope and local acceptance.
Current UK / England route For new work, confirm the current BS EN / EN 13501 reaction-to-fire classification and any wall-system requirements. Do not treat legacy BS 476 National Classes as the current Approved Document B reaction-to-fire route.
Total panel thickness 3–6 mm is a common DERACP project range; 4 mm is a common façade starting reference. Match thickness to the report, cassette design, structural requirements, routing depth and support system.
Aluminum skins Project-selected front and rear gauges; architectural façade work often evaluates heavier skins than signage-grade sheet. Write face and back gauges separately and match the exact tested / approved panel construction.
Core FR mineral-modified or A2-oriented mineral-dominant direction according to the required route. Do not substitute PE, B1/FR and A2 constructions as if they were equivalent fire categories.
Exterior coating PVDF / FEVE or another project-approved coating for exposed architectural work. Coating chemistry, layer build, color, gloss, metallic direction, exposure and sample reference.
Sheet dimensions 1220 × 2440 mm is a common ACP format; custom widths and lengths can be reviewed by project. Production feasibility, fabrication yield, pallet size, container loading, handling and report relevance.
Color & finish Solid, metallic and selected architectural decorative directions. Approve a physical sample and record color code, gloss, texture and directional orientation.
Documentation TDS, applicable fire-test evidence, order specification, QC and shipment identification. Make the document list part of the quotation before production rather than requesting it after the material is finished.
Export packing Protected stacks / pallets according to size, loading route and destination handling. Sheet count, bundle labels, edge protection, moisture protection, pallet dimensions and shipping marks.
Reference values are preliminary procurement directions. Final availability, tolerances, report scope and regulatory acceptance depend on the exact approved panel build and project requirements.
Procurement workflow

From a “BS 476 ACP” Search to a Quotation You Can Defend

A strong RFQ reduces substitutions and keeps the approved fire evidence connected to the material that is actually manufactured and shipped.

1

Identify the jurisdiction

State country, city, building type, height, occupancy and whether the clause is a current code requirement, a legacy specification or a client standard.

2

Copy the exact fire clause

Send the standard, part, required classification or indices, report language and any consultant comments instead of paraphrasing them as “fireproof”.

3

Freeze the panel build

Define total thickness, front and rear skins, core, coating, color, dimensions, protective film and any fabrication requirements.

4

Match evidence to supply

Review the exact report scope, approve the physical sample, identify production/QC requirements and keep document references connected through packing and shipment.

ARCHITECT / CONSULTANT

Control the approval route

Define the current fire route, material build, finish and submittal evidence. Avoid generic “Class 0 ACP” wording on new specifications where it is no longer the correct pathway.

FAÇADE CONTRACTOR

Connect panel to system

Coordinate cassette geometry, grooves, returns, stiffeners, rails, anchors, cavity barriers, membranes, insulation and joints with the fire and structural design.

DISTRIBUTOR / IMPORTER

Normalize before pricing

Compare suppliers on the same skins, core, coating, size, documentation and packing rather than a headline “4 mm fireproof ACP” price.

FABRICATOR

Trial the actual construction

Mineral-core panels can process differently from conventional PE-core sheets. Confirm routing depth, folding radius, tool condition and protective-film behavior before volume fabrication.

Application logic

Where BS 476 Fire Test Evidence May Still Appear in ACP Procurement

BS 476 remains visible in international supply chains, historical specifications and projects that were designed under older requirements. The correct decision is not to assume it is universally obsolete or universally acceptable; it is to verify the jurisdiction and the contract requirement.

01 · LEGACY TENDER

Existing project documents

Older consultant schedules may still cite Part 6, Part 7 or “Class 0”. Before sourcing, confirm whether the clause remains contractually valid and whether an updated classification is now required.

02 · EXPORT MARKET

Markets retaining British methods

Some international tenders may continue to reference British test methods. Request the precise accepted standard and report format from the local authority, consultant or client.

03 · MATERIAL COMPARISON

Historical test-file review

BS 476 evidence may be part of an older technical dossier. Treat it as one source of product history—not an automatic substitute for a current project classification or complete-wall assessment.

Why DERACP

Project-Based ACP Supply Without Turning a Fire Claim Into a Marketing Shortcut

DERACP states more than 20 years of ACP manufacturing experience and six production lines. For fire-sensitive projects, the practical value is the ability to coordinate core, skins, coating, finish, size, sample, packing and required documentation as one order specification.

CONTROLLED CONSTRUCTION

Quote the panel you intend to buy

Define thickness, front/rear skins, fire-related core direction, coating and dimensions before comparing suppliers or approving a sample.

SAMPLE APPROVAL

Separate appearance from test evidence

Approve color, gloss and finish with an identified physical reference while keeping fire reports tied to the technical build they actually cover.

ORDER-SPECIFIC QC

Keep the PO and production aligned

Dimensions, surface appearance, panel build, protective film, labeling and agreed inspection points can be coordinated before shipment.

CUSTOM SIZE PLANNING

Reduce unnecessary fabrication waste

Project widths and lengths can be reviewed against module yield, handling, pallet limits, container loading and the constraints of the approved construction.

EXPORT PACKING

Protect the approved finish

Plan sheet stacking, edge protection, bundle identity, pallet configuration, moisture protection and destination handling before dispatch.

DOCUMENT REVIEW

Ask for the right evidence early

When a fire test is mandatory, put the required document list in the RFQ so availability and applicability can be reviewed before the commercial order is finalized.

Related questions

BS 476 Fire Rated ACP FAQ

What is a BS 476 fire rated ACP?

It is a commercial description normally used for an aluminum composite panel supported by evidence under one or m, ore parts of the BS 476 fire-test series. In ACP procurement, Part 6 and Part 7 are commonly encountered in legacy reaction-to-fire specifications. The report should be checked against the exact panel construction being quoted.

What is the difference between BS 476 Part 6 and Part 7?

BS 476 Part 6 historically assessed fire propagation and expressed results using a fire propagation index. BS 476 Part 7 addressed the classification of surface spread of flame. They evaluate different fire-behavior characteristics and should not be presented as the same test.

Is BS 476 Part 6 / Part 7 still the current reaction-to-fire route in England?

Not for new work following the current Approved Document B route. References to BS 476 for reaction to fire and roofs were removed from Approved Document B from 2 March 2025, subject to transitional provisions. A current project should confirm its required BS EN / EN 13501 classification and any additional wall-system assessment with the responsible design and approval team.

Does a BS 476 tested ACP make the full cladding system fire compliant?

No. A panel-level result does not automatically establish the behavior or compliance of the installed wall. Insulation, membranes, cavities, cavity barriers, subframes, fixings, sealants, joints and opening details can all affect the complete façade system.

Is BS 476 equivalent to BS 8414 or EN 13501-1?

No. BS 476 Part 6 and Part 7 are legacy product fire-test methods; BS 8414 is a large-scale external-wall system test; and EN 13501-1 is a European reaction-to-fire classification system. Results should only be used within their defined scope and should not be converted into unsupported “equivalent” claims.

What should I send DERACP for a British fire test ACP cladding quotation?

Send the project country, building type, application, exact fire clause, requested test standard and report wording, panel thickness, front and rear aluminum gauges, core, coating, color, sheet size, quantity, destination, drawings and any consultant notes. If the tender still says only “BS 476 / Class 0,” include the original clause so the correct review path can be identified.

Send the real project requirement

Request a Specification-Based BS 476 / Fire-Rated ACP Review

Tell DERACP where the project is located, which fire clause must be met, the panel build you need, façade application, color, dimensions, quantity and destination. The team can then review the proposed construction, sample route and document availability before quotation approval.

DERACP · Aluminum Composite Panel / ACP / ACM Manufacturing & Project Supply · www.der-acp.com · info@der-acp.com · +86-21-54361792

Technical note: fire classification, report scope, dimensions, coating, availability and regulatory acceptance are subject to the exact confirmed construction and project requirements. This page is a product-selection and procurement reference, not a substitute for project-specific fire engineering, building-control review or authority approval.

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