Who publishes what in the pedestal deck category

A pedestal system usually arrives with a brand name on the box, but the name on the box and the hand that made it are not always the same thing. Some organisations trading in this market manufacture the pedestal itself. Others distribute a system made elsewhere under their own branding. A few sit inside a wider group whose other businesses make the slab, the membrane or the deck board as well.

The organisations covered

This part of the record covers Wallbarn, Ryno, Buzon UK, Zoontjens, Alumasc Harmer Modulock, Dura Composites, EnviroBuild, Castle Composites and AliDeck. For each one it sets out what the organisation sells into a pedestal deck build-up, who owns it, and the date that was last checked.

Why the distinction is worth having

A manufacturer writing its own CPD session or its own NBS clause is describing its own product. A distributor doing the same thing is describing somebody else's product under its own name, and a specifier who treats the two as equivalent can end up quoting a sales document as if it were neutral guidance. Knowing which is which does not tell you whether a load figure or a fire-class claim is correct. It tells you whose interest sits behind the document making the claim.

Where a company sits inside a wider group, the group's other interests can bear on a recommendation that otherwise reads as plain technical advice. That is a reason to ask the supplier to confirm a figure in writing.

A pedestal deck that satisfies Building Regulations still has to satisfy whoever is underwriting the building's structural warranty. That is a separate check, run against a separate set of technical requirements.

LABC Warranty and NHBC

Both LABC Warranty and NHBC issue structural warranties on new-build residential work, and both publish their own technical requirements for balcony and roof-terrace build-ups. A warranty surveyor assessing your build-up is applying that body's own standard, so a pedestal system that satisfies the regulation can still be queried by the surveyor if it does not meet the warranty provider's own requirement for the same detail.

Where the two bodies' requirements differ from each other, or from what a manufacturer's literature assumes, the practical answer is to get the warranty body's current technical requirement in writing for the specific build-up.

BBA certification and UKAS accreditation

A British Board of Agrément certificate is a form of third-party product certification. It tells a specifier that an organisation independent of the manufacturer has assessed the product against a stated set of criteria and is prepared to put its name to that assessment. UKAS accreditation is the separate mechanism that is meant to confirm the certifying body itself is competent to carry out that kind of assessment.

A certificate's cover page does not tell you whether the accreditation behind it is current at the moment you are reading it, because accreditation status can change after a certificate is first issued. The current position on BBA's UKAS accreditation, and what it means for a certificate carrying the BBA mark, is set out on its own page: BBA UKAS Accreditation Suspended — What It Means for Pedestal Certificates.

Where a manufacturer or distributor cites a BBA certificate in support of a pedestal product, ask for the date the certificate was issued and for confirmation that the underlying accreditation was current on that date, in writing.

A good deal of the guidance a specifier reads on pedestal decks never passes through a standard or a regulation. It arrives as a CPD module worked through for continuing professional development, a feature in a trade magazine, or an entry on a wiki-style reference site. Each of these carries an author, and some carry a sponsor, but the two do not always sit on the same page.

Building magazine CPD 12 2024

This CPD module is sponsored by Ryno. The sponsorship is stated on the article itself, so a reader working through the module on the magazine's own page can see who paid for it before taking the content into a specification.

The Designing Buildings BS 8579 article

This piece was written by Wallbarn. Where it has been picked up and republished elsewhere, the credit attached to it has changed, so the copy a reader finds on another site may not show who wrote it or what they sell.

A CPD certificate or a wiki entry reads the same whether or not a manufacturer paid for it, which is why the funding behind each is worth checking before it goes into a specification note or an email to building control. Before repeating a claim from the Designing Buildings piece, it is worth setting it against what BS 8579 actually says about pedestal decks.