A fixing strategy only works when the specified product, the product supplied and the product installed all remain aligned.
The design of a fire-rated partition may begin with a tested system and a carefully prepared specification. Its performance, however, ultimately depends on what is procured and installed on site.
That journey creates several opportunities for information to become diluted. A fixing may be described generically at design stage, substituted during procurement or selected by an installer working under programme pressure. By completion, the installed product may be difficult to trace back to the original design intent.
Closing that gap requires more than selecting a good product. It requires a clear fixing strategy that connects specification, procurement, installation and documentation — supported by the principles introduced in Why Fixings Are Now Part of the Fire-Rated System, Part 1 of this series.
The problem rarely begins with a deliberate decision to ignore performance evidence. More often, it develops through small gaps in responsibility or communication:
Each decision may appear minor in isolation. Together, they make it harder to show that the installed build-up follows the intended system.
The most effective time to resolve fixing requirements is before products arrive on site. The specification should identify the relevant fixing type and application, and point users towards the current manufacturer evidence and installation requirements.
That does not mean one fixing will suit every condition. Substrate, loading, embedment, edge distances and the particular system build-up all matter. The aim is to define the decision-making route, including who should be consulted when the application falls outside the published information.
For defined Siniat fire-rated partition systems, Etex Building Performance has approved named Sympafix C45 and C70 gas-fired nails, SB2 concrete screws and CA Plus ceiling anchors following EN 1364-1 fire testing.² Referring to those named products is more useful than relying on a generic description alone.
Substitution is a normal part of construction, but in a fire-rated build-up it should not be treated as a simple price or availability decision.
Before changing a specified fixing, the project team should establish whether the proposed alternative is covered by the same approval, whether its dimensions and installation requirements remain appropriate, and whether additional evidence is required.
For example, Sympafix guidance states that alternative gas-nail sizes may be covered by the collateral warranty, subject to on-site pull-out testing. That is a defined process — not an assumption that a visually similar product or size will perform in the same way.
Technical evidence is valuable only when it reaches the people making decisions and carrying out the work. Site teams need concise, accessible information that answers practical questions:
The answer may sit within several technical documents, but the route to that information should be clear. Product briefings, toolbox talks, approved-product schedules and accessible manufacturer documentation can all help turn a design decision into a consistent installation practice.
Golden Thread guidance for higher-risk buildings — introduced in Why Fixings Are Now Part of the Fire-Rated System, Part 1 of this series — treats digital records as a usable source of truth.¹ The same principle applies at project level: a useful record should let someone identify the fixing selected, the evidence supporting it, any approved change and the checks completed on site.
Depending on the project, this may include:
The objective is not to store paperwork for its own sake. It is to retain the information needed to explain and support the installed solution.
A specialist distributor sits at an important point between specification and site. By understanding both the drylining system and the fixing application, the distributor can help customers access the right product information, identify when a technical question needs escalation, and reduce the risk of procurement becoming disconnected from the approved design.
GO Interiors has been selected as Sympafix’s national distribution partner. This allows customers to source specialist fixings alongside their wider drylining requirements, supported by branch teams and access to manufacturer technical guidance.
That one-supplier route can make procurement simpler, but the real value is continuity: keeping the product, evidence and application aligned from specification through to installation.
Closing the specification-to-installation gap does not require every project participant to become a fixing specialist. It requires the right questions to be answered by the right people, with the resulting decisions made visible to those who procure, install and record the system.
Working on a live project and need to check a fixing choice or proposed substitution against the available information? Contact your local GO Interiors depot and we’ll help you access the appropriate technical guidance.