Building envelope literature, mapped
Gateway 2 approval and Gateway 3 completion both stand or fall on evidence, and for the external wall that evidence starts in manufacturer literature: datasheets, classification reports, installation guides and warranty manuals. This page maps where to find it: the leading manufacturers for external and internal components, and the testing, certification and warranty bodies that sit behind them. We link to the source; we never republish it.
Why the paperwork is the product
The Building Safety Regulator has been clear about why applications stall: test data that does not match the actual build-up at Gateway 2, and as-built records that do not match what was installed at Gateway 3. Both failures start in the same place, treating manufacturer literature as marketing rather than evidence. A classification report is written for a specific configuration: thickness, density, facing, fixings, cavity, substrate. Change any of them and the report may no longer apply to your wall.
The practical discipline is simple to describe: collect the documents at procurement, check the tested configuration against your detail before anything is ordered, and record what was actually installed against those documents as you build. That set, versioned and attributable, is a large part of the golden thread you hand over at Gateway 3.
On materials: since the 2018 amendment to the Building Regulations, materials that become part of an external wall of a relevant building over 18m must generally achieve European class A2-s1,d0 or A1, with limited exemptions. On process: the four reasons Gateway 3 applications stall are all, at root, evidence failures. The manufacturers below publish the documents that stop them.
External envelope: the top ten literature libraries
Cladding and rainscreen, insulation, cavity barriers, render systems and curtain walling. Ten manufacturers whose technical libraries a facade package will lean on most often.
- Kingspankingspan.com
Insulated panels and insulation
Datasheets, EN 13501-1 classification reports, BIM objects and project-specific fire performance statements for panel and insulation systems.
- ROCKWOOLrockwool.com
Stone wool insulation and cavity barriers
Non-combustible (A1) product data, declarations of performance and detailed guidance for rainscreen and masonry cavity applications.
- Trespatrespa.com
High-pressure laminate rainscreen panels
Panel datasheets, reaction-to-fire classifications and fixing guidance for ventilated facade systems.
- Equitoneequitone.com
Fibre cement rainscreen facade materials
A2-rated facade material literature, application guides and tested build-up details.
- Swisspearlswisspearl.com
Fibre cement facades
Technical manuals and classification documents for fibre cement cladding systems.
- Stosto.co.uk
External wall insulation and render systems
System build-up literature, BBA certificates and fire performance documentation for EWI and render.
- Schuecoschueco.com
Curtain walling, windows and doors
System descriptions, test evidence and CWCT performance data for stick and unitised curtain walling.
- Kawneerkawneer.com
Aluminium curtain wall and framing systems
Curtain wall system literature, U-value data and test certification for framing and glazing systems.
- Senior Architectural Systemsseniorarchitectural.co.uk
Aluminium fenestration and curtain walling
UK-manufactured curtain wall and window system technical documentation and specification support.
- Siderisesiderise.com
Cavity barriers and firestops for facades
Rainscreen cavity barrier test data, site installation guides and inspection app documentation widely referenced at Gateway 2 and 3.
Internal components: the top ten literature libraries
Drylining and partitions, passive fire protection, firestopping of service penetrations, SFS framing and ceilings: the internal systems whose tested details end up in the fire strategy evidence.
- British Gypsumbritish-gypsum.com
Plasterboard and drylining systems
The White Book system selector: fire, acoustic and structural performance for tested partition and lining systems.
- Knaufknauf.com
Drylining, plasters and performance walls
System datasheets and fire test evidence for partitions, shaft walls and encasements.
- Siniatsiniat.co.uk
Drylining and external sheathing boards
Technical manual with tested systems, including weather defence sheathing used in through-wall build-ups.
- Promatpromat.com
Passive fire protection boards and systems
Fire protection handbooks and tested details for structural protection, ductwork and compartmentation.
- Hiltihilti.co.uk
Firestop systems and fixings
Firestop selector, ETAs and judgement documentation for penetration seals, joints and services routing.
- Nullifirenullifire.com
Intumescent coatings and firestopping
Intumescent specification documents and firestop test evidence for steel protection and linear joints.
- Quelfirequelfire.co.uk
Firestopping of service penetrations
Tested detail library and early-engagement guidance for service penetration sealing in higher-risk buildings.
- FSi Promatfsiltd.com
Passive fire protection products
Firestopping product data and tested configurations for penetrations, cavity barriers and linear gap seals.
- voestalpine Metsecmetsec.com
Light gauge steel framing (SFS)
SFS infill and through-wall design guidance, load tables and system certification underpinning external wall build-ups.
- Zentiazentia.com
Suspended ceiling systems
Ceiling system performance data including fire, acoustics and seismic guidance for internal fit-out.
Testing, certification and through-wall warranty
The bodies that test, certify and warrant the envelope. Check the certificate, check the accreditation behind it, and check the warranty manual that your through-wall detail will be inspected against.
- BBA (British Board of Agrement)bbacerts.co.uk
Product and system certification
Agrement certificates: independent assessment of products including facade systems, EWI and membranes.
- BRE Groupbregroup.com
Testing, certification and research
Fire testing and third-party certification schemes, plus research publications on external wall performance.
- Warringtonfirewarringtonfire.com
Fire testing and certification
Reaction-to-fire and resistance testing, plus certification schemes for installers and products. Link only; content is copyrighted.
- UKASukas.com
Accreditation body
Check that the laboratory behind any test certificate is accredited for that specific test standard.
- CWCTcwct.co.uk
Centre for Window and Cladding Technology
The technical standards used to specify and test curtain walling and cladding in the UK; membership content, link only.
- NHBCnhbc.co.uk
Warranty and technical standards
NHBC Standards set the through-wall detailing benchmarks most new-build warranties inspect against.
- LABC Warrantylabcwarranty.co.uk
Structural warranty
Technical manual with through-wall and cladding requirements that differ in detail from NHBC; check the one that applies.
- Premier Guaranteepremierguarantee.com
Structural warranty
Technical manual and guidance notes for warranted external wall construction.
Frequently asked questions
- Why does manufacturer literature matter at Gateway 2 and Gateway 3?
- Because the BSR expects the tested system, the specified system and the installed system to match. Datasheets, classification reports and installation guides are the evidence chain. A leading cause of rejection is test data that does not match the actual build-up, and at Gateway 3 the as-built golden thread must contain the documentation for what was really installed.
- What fire classification do external wall materials need on higher-risk buildings?
- Since the 2018 amendment to Building Regulations, materials that become part of an external wall of a relevant building over 18m must generally achieve European class A2-s1,d0 or A1, with limited exemptions. Always confirm the classification report covers the product as installed, not a different thickness, facing or fixing arrangement.
- What should I collect from manufacturers for the golden thread?
- The datasheet, the declaration of performance, the EN 13501 classification report or assessment applicable to your build-up, installation instructions, and any project-specific technical statements. Collect them at procurement, version them, and record what was actually installed against them.
- Who are the main testing and certification bodies for the building envelope in the UK?
- Fire testing and certification is carried out by laboratories such as BRE and Warringtonfire, with product certification from bodies like the BBA. UKAS accreditation confirms a laboratory is competent for the specific standard. CWCT standards govern curtain walling and cladding testing, and warranty providers such as NHBC, LABC Warranty and Premier Guarantee publish through-wall technical requirements.
Inclusion is not endorsement and this is not a specification. Always verify the current document on the manufacturer's own site and confirm it covers your exact build-up. Verified 15 July 2026. This page is information, not legal advice.