How Do Siniat Fire Test Systems?
How Siniat verifies fire‑resistance performance in full system assemblies.
Test → Extend → Classify: Siniat’s Evidence Chain
To ensure products are safe, compliant, and aligned with UK regulatory expectations, Siniat follows a rigorous Test → Extend → Classify process. All fire‑resistant systems are tested as complete assemblies through UKAS‑accredited laboratories, and classification follows strict EN standard requirements. This approach supports the Construction Products Association’s Code for Construction Product Information (CCPI) and maintains a traceable evidence chain consistent with the industry’s “Golden Thread” expectations.
TEST
Systems are tested to the correct EN fire test standard, such as:
EN 1364 series for non‑loadbearing walls and ceilings
EN 1365 series for loadbearing floors, walls and roofs
EXTEND
Where allowed, results may be extended using either:
DIAP – Direct Field of Application (rules contained within the test standard)
EXAP – Extended Field of Application (separate EN documents, for example EN 15254‑3 for non‑loadbearing partitions; other parts of EN 15254 apply to different building elements).
Siniat only uses EN‑approved DIAP or EXAP routes.
What is EXAP - Siniat
CLASSIFY
All final fire‑resistance performance ratings are classified to EN 13501‑2.
How Do Siniat Fire Test Partitions?
Siniat tests all fire‑resistant partition systems through independent, third‑party UKAS‑accredited laboratories to ensure full traceability, transparent evidence and robust classification. Testing is performed on complete system assemblies to demonstrate the performance of the full partition build‑up under fire conditions.
EN 1364‑1: Fire resistance tests for non‑loadbearing elements – Walls.
All Siniat fire classifications are based on direct EN test evidence, supported by Siniat’s internal technical validation processes.
You can explore the full range of Siniat EN‑tested partition systems here:
Partition Systems - Siniat
How Do Siniat Fire Test Ceilings?
Siniat fire‑tests all suspended and framed ceiling systems through independent UKAS‑accredited laboratories, using complete system assemblies to reflect real installation conditions. Testing methods are selected according to the ceiling design and support arrangement.
EN 1364‑2: Fire resistance tests for non‑loadbearing ceilings (applies to Siniat MF ceiling grids).
EN 1365‑2: (where applicable) Used only when the ceiling forms part of a loadbearing floor or roof assembly.
All Siniat fire classifications are based on direct EN test evidence, supported by Siniat’s internal technical validation processes. Siniat does not use opinion‑based assessment routes for fire‑resistance claims; only validated test data and approved EN classification methods are used.
Siniat fire‑rated ceiling systems are assessed using DIAP provisions within EN 1364‑2, which define the direct application rules for ceiling configurations based on tested performance. Following DIAP, final classifications are issued in accordance with EN 13501‑2.
You can explore our full range of Siniat EN‑tested ceiling systems here:
Suspended MF Ceilings - Siniat
Timber Ceilings - Siniat
How Do Siniat Fire Test Lining Systems?
Siniat lining systems are tested in independent UKAS‑accredited laboratories as full wall‑mounted assemblies, including boards, fixings, substrates and installation details.
EN 1364‑1: Fire resistance tests for non‑loadbearing elements – Walls.
EN 1364‑3 / EN 1364‑4 (where applicable): Fire resistance tests for non‑loadbearing elements – Curtain walling and protective coverings.
All Siniat fire classifications are based on direct EN test evidence, supported by Siniat’s internal technical validation processes. Siniat does not use opinion‑based assessment routes for fire‑resistance claims; only validated test data and approved EN classification methods are used.
Siniat wall lining systems follow the DIAP (Direct Application) rules under EN 1364. Since there is no EXAP standard for independent lining systems, DIAP is the default route. Classifications are issued in accordance with EN 13501‑2.
You can explore our Siniat EN‑tested lining systems here:
Wall Lining Systems - Siniat
How Do Siniat Fire Test Shaftwall Systems?
Siniat shaftwall systems are tested as complete assemblies in independent UKAS‑accredited laboratories, including boards, studs, fixings and insulation, to reflect performance from the room side under fire conditions.
EN 1364‑1: Fire resistance tests for non‑loadbearing walls (used to assess shaftwall integrity and insulation performance).
All Siniat fire classifications are based on direct EN test evidence, supported by Siniat’s internal technical validation processes. Siniat does not use opinion‑based assessment routes for fire‑resistance claims; only validated test data and approved EN classification methods are used.
Siniat shaftwall systems are validated using DIAP provisions within EN 1364‑1. Final classifications are produced in accordance with EN 13501‑2.
You can explore our Siniat EN‑tested shaftwall systems here:
Shaftwall Systems - Siniat
How Do Siniat Fire Test Load‑bearing Timber Floors?
Siniat load‑bearing timber floor systems are tested in independent UKAS‑accredited laboratories as full structural floor assemblies, including boards, fixings, insulation and the supporting timber structure. Testing represents how the complete system performs when exposed to fire from below.
EN 1365‑2: Fire resistance tests for loadbearing elements – Floors and roofs (assesses loadbearing capacity, integrity and insulation performance).
All Siniat fire classifications are based on direct EN test evidence, supported by Siniat’s internal technical validation processes. Siniat does not use opinion‑based assessment routes for fire‑resistance claims; only validated test data and approved EN classification methods are used.
Load‑bearing timber floor systems are validated using the DIAP rules defined in EN 1365‑2, which set out the direct application limits for loadbearing floor constructions. Final classifications are produced to EN 13501‑2.
You can explore our Siniat load‑bearing timber floor systems here:
Loadbearing Timber Floors - Siniat
How Do Siniat Fire Test Non‑loadbearing Timber Systems?
EN 1364‑1: Fire resistance tests for non‑loadbearing walls (assesses integrity and insulation performance of non‑loadbearing timber‑framed systems).
All Siniat fire classifications are based on direct EN test evidence, supported by Siniat’s internal technical validation processes. Siniat does not use opinion‑based assessment routes for fire‑resistance claims; only validated test data and approved EN classification methods are used.
Siniat non‑loadbearing timber systems follow the DIAP guidance within EN 1364‑1, which specifies direct application limits for non‑loadbearing wall constructions. Final classifications are then completed in accordance with EN 13501‑2.
You can explore our Siniat non‑loadbearing timber systems here:
Non-loadbearing Timber Floors - Siniat
EN Standards Glossary (Quick Reference)
EN 1364‑1 – Fire resistance tests for non‑loadbearing walls
EN 1364‑2 – Fire resistance tests for non‑loadbearing ceilings
EN 1364‑3 / 1364‑4 – Fire testing for curtain walling and protective coverings
EN 1365‑2 – Fire resistance tests for loadbearing floors and roofs
EN 13501‑2 – Fire classification of construction products and building elements
EN 15254-3 – EXAP rules for partitions
DIAP – Direct Field of Application (rules within the EN test standard)
EXAP – Extended Field of Application (separate EN document)
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