15mm Siniat Fire Board is a fire-performance plasterboard designed for use within tested stud partitions, wall-lining systems and ceiling constructions.
The board has a gypsum core containing fire-resisting fillers and fibres, enclosed within a distinctive pink paper facing. Its enhanced formulation helps complete Siniat drywall systems maintain their integrity and insulation performance for longer when exposed to fire.
Each board is supplied in one fixed specification:
Siniat Fire Board is intended for constructions requiring greater fire performance than a standard general-purpose plasterboard.
Typical applications include:
The proposed construction must match a current tested, classified or assessed Siniat system.
A correctly specified single-layer Siniat metal-stud non-loadbearing partition can achieve 60 minutes of fire resistance using one layer of 15mm Siniat Fire Board on each face.
This does not mean that one loose board has an independent 60-minute fire rating.
System performance depends on:
Use the complete Siniat system reference rather than selecting the board alone from a required fire-resistance period.
The board is classified as Type DF under BS EN 520.
The Type F designation identifies a gypsum plasterboard with improved core cohesion at elevated temperatures. The Type D designation relates to controlled density.
This performance-board classification distinguishes it from standard Type A plasterboard.
Siniat Fire Board has a declared reaction-to-fire classification of Euroclass A2-s1,d0.
This classification describes how the board contributes to fire growth:
Reaction to fire is different from fire resistance. Euroclass A2-s1,d0 does not mean that the individual board provides 60 minutes of compartmentation.
The gypsum core contains fire-resisting fillers and fibres that help retain cohesion during exposure to high temperatures.
Gypsum naturally contains chemically combined water. During a fire, heat releases this water as vapour, helping control the temperature rise through the complete lining system for a period of time.
The fillers and fibres help the board core remain intact for longer than a standard plasterboard when it is installed as part of the appropriate construction.
Siniat describes Fire Board as stronger, harder and heavier than standard plasterboard, providing improved fire, sound and impact performance within Siniat drywall systems.
Its increased performance makes it suitable for areas where a more robust board is required, but it should not be treated as a dedicated high-impact or direct-fixing board unless the selected system specifically supports that use.
The tapered longitudinal edges create a shallow recess where adjacent boards meet.
This recess accommodates joint tape and jointing compound, allowing the joints to be finished flush with the surrounding board surface.
Cut edges and short board ends remain square and require treatment in accordance with the selected Siniat jointing and system specification.
The 15mm board can form a single board layer on each side of certain tested partition systems, reducing the number of layers required compared with constructions that use multiple standard boards.
The actual partition thickness still depends on the stud depth, board layers, insulation and system details.
The greater mass and enhanced construction can contribute to sound insulation when the board is used within an appropriate partition or lining system.
The board does not have a standalone dB or Rw value. Acoustic performance belongs to the complete construction, including:
Before ordering or installing, confirm:
| Product Name | 15mm Siniat Fire Board |
| Manufacturer | Siniat |
| Product Type | Fire-performance gypsum plasterboard |
| Board Classification | Type DF to BS EN 520 |
| Thickness | 15mm |
| Length | 2400mm |
| Width | 1200mm |
| Nominal Coverage | 2.88m² per board |
| Edge Profile | Tapered edge |
| Nominal Weight | 13kg/m² according to the supplied product specification |
| Face Colour | Pink |
| Core | Calcium-sulphate dihydrate gypsum containing fire-resisting fillers and fibres |
| Reaction to Fire | Euroclass A2-s1,d0 |
| Thermal Resistance | Approximately 0.06m²K/W for the 15mm board |
| Primary Applications | Stud partitions, wall linings and ceiling systems |
| Fire Resistance | Determined by the complete tested or classified system |
| Potential System Performance | 60 minutes in specified single-layer Siniat metal-stud non-loadbearing partition systems |
| Standalone 60-Minute Rating? | No |
| Standalone Acoustic Rating? | No |
| Internal Use | Yes, in suitable dry internal environments and approved systems |
| Moisture-Resistant Board? | No; use Siniat Fire MR Board where combined fire and moisture resistance is required |
| Thickness | Board Size | Edge | Coverage | Total Variations |
|---|---|---|---|---|
| 15mm | 2400 × 1200mm | Tapered | 2.88m² | 1 |
| Classification | Meaning |
|---|---|
| Type D | Gypsum plasterboard with controlled density |
| Type F | Gypsum plasterboard with improved core cohesion at elevated temperatures |
| A2-s1,d0 | Very limited contribution to fire, limited smoke production and no flaming droplets within the classification criteria |
A fire-resisting construction may specify:
Substituting framing, fixings, boards or joint treatments may invalidate the published system performance.
Identify the complete tested or classified Siniat system before beginning installation.
Do not select screw centres, stud centres, board orientation or joint treatments from a generic plasterboard guide where a fire-resistance period is required.
Confirm:
Store boards flat and dry until required.
A full 2400 × 1200mm fire board is large and heavy. Use a suitable two-person or mechanical handling method and follow the site manual-handling assessment.
Lift boards on edge rather than carrying them flat and unsupported.
Before boarding, check that the metal or timber framework is:
Do not conceal incomplete framing, missing noggins or unsupported board edges.
Fit the specified mineral wool or other cavity insulation before closing the second face.
Use the correct density, thickness and coverage. Avoid gaps, excessive compression or unapproved substitutions.
Measure the required board dimensions carefully.
For straight cuts, score the paper face with a suitable board knife, snap the gypsum core and cut the reverse paper. Use an appropriate saw or specialist tool for detailed openings.
Wear the required personal protective equipment and control dust when mechanically cutting the board.
Offer the board to the framework in the orientation shown by the selected Siniat system.
Ensure that:
Use the specified Siniat self-tapping or self-drilling drywall screws for the framing gauge.
Drive each screw square to the board surface until the head sits just below the paper without tearing through it.
Follow the system-specific screw centres and edge distances. Do not substitute a general-purpose woodscrew or an unverified drywall fixing.
Where a screw tears through the paper, misses the framing or fails to hold:
Where the system uses more than one board layer:
Doors, sockets, pipes, ducts and cable penetrations must follow tested or assessed details.
Do not cut oversized openings or leave unsealed gaps around services.
Use the specified framing, pattresses, fire-stopping products and penetration seals.
Complete the head, base and abutment junctions using the sealants, tapes and framing details stated by the Siniat system.
Do not fill a tested deflection-head detail with rigid material unless the system expressly requires it.
Fill tapered joints using the specified Siniat jointing compound and embed the approved joint tape.
Apply subsequent coats to achieve a smooth transition between boards.
Treat screw heads, cut edges and board ends in accordance with the finishing specification.
Allow the jointing system to dry and finish it to the required standard.
Apply the specified Siniat sealer or primer before decorating where required.
Use paint, wallpaper or another finish compatible with the completed plasterboard system.
Before handover, confirm that:
15mm Siniat Fire Board does not independently provide 60 minutes of fire resistance.
The published period applies only when the board is installed as part of the complete tested, classified or assessed Siniat partition, lining or ceiling system.
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