Shaftwall
Full range of Siniat Shaftwall Systems.
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What is the maximum weight of door that can be installed into your Shaftwall Systems?
The standard door opening detail which can be found in the Drywall Manual can support a door leaf weight of up to 60kg. Should you have a door leaf weight in excess of this, you will need to utilise a SHS post/lintol arrangement (designed and supplied by others).
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Can I use a regular CH Stud as a starter stud?
No. When starting a run of Siniat Shaftwall, the starter (and end) stud must be the Siniat E Stud (ES19xx/B).
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Does Siniat sell skim plaster?
No. Siniat does not manufacture skim plaster. However, third party skim plaster can be used on our boards as an alternative to taping and jointing. Refer to skim manufacturer's guidance for application details.
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How do I treat horizontal board joints in Siniat Shaftwall systems?
With Siniat Shaftwalls up to a height up to 3m, there will be no horizontal board joints as 19mm Fire Core Board is sold in 3000mm x 600mm lengths. Shaftwalls taller than 3m, you must introduce horizontal CH Stud noggins which are positioned with at least a 1000mm stagger between successive stud bays. The noggin will be tightly fitted between vertic
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What centres must I fix the head track for Siniat Shaftwall systems?
Siniat Shaftwall system must have the head and base tracks fixed at 300mm centres with a suitable fixing which is dependant on the substrate you are fixing too.
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Does Siniat have Shaftwall solutions for horizontal applications?
Siniat do not currently have a tested horizontal shaftwall. The Siniat Shaftwall range is for vertical application only. Promat do have options for horizontal membranes that may suit your application.
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Is it possible to install glazed screens in Siniat Shaftwall systems?
Siniat are unable to provide opening details to support glazing in Shaftwall constructions. If a glazed opening is required in a shaftwall construction then appropriate supporting structural framing (SHS / Goal posts) will need to be provided. This structure will then need to be fire protected using relevant board solutions and the Shaftwall constru
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What type of fixings should be used to fix Siniat Tracks on site?
When Siniat fire test a system, the track fixings are determined by selecting an appropriate type for the substrate the rig is constructed from. Siniat do not have track fixings within its range - it is the responsibility of the installing contractor to select the correct fixing to suit the substrate. It is recommended that suitable non combustible
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Which Insulation manufacturer should I use in Siniat systems?
Siniat do not recommend any particular provider of insulation. Where glass wool insulation is shown in the cavity of a partition for acoustic purposes only, then it is the thickness of the product that is relevant to meet the acoustic performance. Densities will vary from manufacturer to manufacturer but are typically in the 10kg/m3 to 25kg/m3 range
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What is the maximum door weight Siniat partition systems can support?
For single stud or twin frame partition system, the door jamb detail can be configured to support up to 100kg for a door leaf. The principle of the details are shown below: In order to support heavier door leaf weight, an square hollow section is recommended to form jamb and lintol designed and supplied by others. For a shaftwall system, the maximum
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What guidance is there for fire stopping pipe penetrations?
To suitably fire stop pipe penetrations through Siniat systems, the recommendation is that these must be in line with guidance in the latest revisions of Approved Document Part B (Section 9) of the Building Regulations and with the fire stopping manufacturers tested system. Within Approved Document B (2019 edition with amendments up to 2022), the r
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Could I install cable penetration through head track?
It is recommended cable penetrations avoid framing components and penetrate board only. The hole should be as tight as possible with Siniat Intumescent Acoustic Sealant to seal the hole to the cable. For partitions without deflection heads the cable should be installed with enough slack to allow it too drop below the head track and pass through boar
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What is the maximum height that can be achieved with Siniat partition systems?
The maximum height possible for a Siniat metal stud partition or shaftwall system is dependant on a number of factors. Firstly there will be the cold state maximum height which is down to the structual ability of the system and keeping it within the defined parameters of BS 5234-2. Secondly, if there is a fire resistance period required for the syst
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What crowd load can a Siniat partition withstand?
The published heights of Siniat partitions are constrained by the minimum values of Serviceability Limit States (SLS), Ultimate Limit States (ULS), and a 10mm maximum deflection requirement outlined in Annex A of BS 5234-2. These stringent height requirements, coupled with crowd load testing conducted in accordance with BS 5234-2, have led to the d
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Can Siniat shaftwall systems be used in smoke shafts?
Smoke shaft applications for Siniat shaftwall systems: Approved Document B (Vols. 1 and 2) sets out requirements for smoke control through two methods: natural ventilation, and mechanical ventilation. The A1 Shaftwall System would generally be considered suitable for natural ventilation shaft applications, when correctly sealed. The A1 Shaftwall s
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What Siniat components must be used in the Siniat A1 shaftwall system?
Siniat A1 shaftwall systems are designed to seamlessly interchange with the traditional Shaftwall components and construction method. The only differences include the use of A1-classified plasterboard (EN13501-1), 12.5mm Weather Defence boards to the corridor side, and 19mm Weather Defence board to the shaft side. For full details of the A1 Shaftw
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What fire and acoustic performance is possible with Siniat A1 Shaftwall systems?
The fire and acoustic performance of the Siniat A1 Shaftwall systems are dependent on full system build-up. See the Siniat Drywall Manual -Shaftwall Section for full details. The two system variants available are shown below:
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What is the maximum deflection allowance that can be incorporated within the Siniat A1 Shaftwall system?
The Siniat A1 shaftwall deflection head detail can cater for upto 40mm movement. At construction you will need to understand whether you need to allow for upward and downward movement or just downward and install accordingly, but the maximum range of movement is 40mm. The deflection head configurations are shown below: Please follow the link for f