Partitions
Full range of Siniat Non-Loadbearing Partitions.
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Why do I need to use flat straps on partition joints?
All of our partition systems are fire tested using a flat strap at horizontal joints. Flat straps provide a barrier between the horizontal joint to prevent smoke and flame ingress. Flat straps provide fixing points along the horizontal joint of the system, allowing for the essential 300mm centre fixing points for the board lining. The Siniat warrant
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How can I achieve a Severe Duty rating?
To achieve Severe Duty, you will need to meet as a minimum the lateral stiffness and impact resistance criteria as set out in BS 5234 Part 2. The maximum height of a partition is limited to a lateral deflection of 10mm when tested in line with this standard. Impact resistance is down to board selection. Any combination of two boards (at least 12.5m
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Which plasterboards give the best impact resistance?
Siniat LaDura, Megadeco and Universal boards offer the best impact resistance. The 15mm version of each used on a partition system as a single layer will provide Severe Duty assuming the maximum height is within recommendations.
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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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Do I need to use a moisture resistant plasterboard if I am applying a full height tiled finish?
Siniat recommend the use of a Moisture resistant plasterboard in areas of high humidity like bathrooms for example. The final finish will be the first line of defence against moisture, but over time water can soak through grout if not sealed adequately. A moisture resistant board will give further defence to temporary exposure. Siniat supplies Mois
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How do Siniat Fire test partitions?
Siniat test all its fire-rated systems through independent 3rd party UKAS accredited bodies. Siniat partitions are tested to EN 1364-1: Fire resistance tests for non-loadbearing elements - Part 1: Walls Explore our EN Partition range
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What extensions can I make to a fire rated partition?
You may want to extend a tested fire performing partition build-up. The following rules have been taken from the Extended field of application standard EN 15254-1: Lightweight Partitions. Framing Allowed Not Allowed Increase stud gauge Decrease stud gauge Decrease stud spacing Increase stud spacing Increase stud depth Decrease stud depth Increase
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Why have Siniat changed their partition system names?
To help the transition to our new range of EN and EXAP compliant data we have implemented a new range of system reference codes. Instead of using assigned numbers (e.g. RSP 038) these codes now describe the build-up of a system. In time this will become a much easier way to work with Siniat systems. This implementation is starting with Siniat Partit
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How do I read the new partition system names?
Partition code structure In order to understand the build-up of the system just from the name, the code is split into sections (indicated with ‘-’) FRAMING- BOARDING - INSULATION Framing Boarding Insulation Frame Type No. Layers No. Layers Stud Profile Thickness Thickness Stud Width Name Type Stud Gauge Asymmetric Stud Centres Accessories
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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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Can you install back-to-back sockets in a partition?
The standard industry recommendation is to avoid back-to-back sockets wherever possible. Sockets should ideally be installed in their own stud bay to provide a stagger to minimise acoustic loss in combination with the desired baffle to maintain all performances of the system. The penetration must be fire stopped with an appropriate product each si
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What heights can timber stud partitions achieve?
As Siniat is a supplier of metal stud partitions, the design of a timber frame would be down to the guidance supplied by specialists in this area and/or the timber association. Timber frames can be both load bearing and non-load bearing so size and grade of timber will be important.
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Does Siniat have a board that can achieve severe duty and offer moisture resistance?
Any combination of 2 layers of 12.5mm/15mm plasterboards each side of a stud frame will be classed as Severe Duty. To achieve Severe Duty with a single layer each side of the stud frame would require the use of 15mm LaDura, Universal, Megadeco or Aquaboard. Of these, LaDura is classed as H1 moisture resistance to BS EN 520, Aquaboard is classed as G
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How close to the soffit can I penetrate with services when I have a deflection head?
A partition with a deflection head must not have services penetrating in the deflection zone. All service penetrations must be run below the flat strap, otherwise they will interfere with the movement of the detail. The distance between the soffit and the permitted service installation zone will vary depending on the deflection allowance. It will
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When fixing Siniat framing systems, how far can the partition overhang the structural edge?
For internal Siniat partitions or linings, the base track can cantilever off the structural edge as per the below: Siniat internal frames can cantilever the structural edge by up to 33% of the width of the track. The base / head track fixing should be positioned in the middle third of the track width, staggered within that zone. (i.e no closer tha
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Do Siniat have fire test data to support door openings within partitions?
It is the responsibility of the relevant door manufacturer to provide test data and advise on the construction they used to meet the desired fire performance with their door sets/assemblies. The door details Siniat provide are recommendations to form framed openings to support the door weights as outlined in the site-specific project pack and the G
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What type of Moisture Board do I need to use in Bathroom environments, H1 or H2?
The use of moisture board in bathroom areas, the requirement for moisture board use in bathroom locations is set out as a recommendation in BS 8212 : Code of practice for dry lining and partitioning using gypsum plasterboard, which states ‘’ where the wallboard is to be exposed for short periods to humidity or moisture, for example in Kitchens and B
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Do Siniat require Timber Insert to door Jambs?
The purpose of the timber insert into a door jamb detail is to provide the door set manufacturer the required resistance for their fixings. Siniat have a number of jamb configurations to meet the needs of various door leaf weights, the inclusion of the timber insert to be in line with the door set manufacturer guidance. Examples for single stud sys
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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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When forming a door opening within a partition, should it be capped with plasterboard?
Ultimately, the requirement for the opening to be capped with plasterboard rests with the door set manufacturer. Their door set fire tests will detail how the the interface was formed and that as a minimum must be followed. From a Siniat perspective, the capping of the door opening is deemed as good practice using the same specification of boards
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Does the Siniat Tilebacker board provide or contribute to the fire resistance of a system?
Siniat Tilebacker board has not been tested as part of a system for fire resistance. The board is classified as A2,s1-d0 for reaction to fire similar to other internal plasterboards in the range. To create system with a specific fire resistance period, specify internal plasterboards to meet all requirements (fire, acoustic, robustness, height) then
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What does (Rw) and (Dntw) mean when acoustic performance is mentioned?
Acoustic performance is not just a number of decibels. Depending on the terminology quoted after the dB value, the meaning will be different. dB (Rw) - this is the weighted sound reduction index derived from a lab test of a particular building element. The higher this value, the better the performance. dB (DnTw) - This is the onsite tested performa
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How should a profiled soffit be detailed to maintain performance of a partition fixed to it?
When fixing the head of a partition to a profiled rib deck, the profiles must be fire stopped to maintain the same fire resistance performance as the partition below. There are specialised products that are available from fire stopping manufacturers to suit this purpose and guidance from the relevant manufacturer must be sought to ensure they are in
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How is glasswool insulation installed within the cavity of a partition?
Glasswool Insulation can be hung from the inside of the head track by trapping an amount with a 25mm x 25mm angle section and fixings through the head track. Where partitions, linings and shaftwall systems do not require a fire rating, and the insulation is only used for acoustic or thermal purposes, alternative suspension methods are acceptable suc
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What configurations can I use Siniat Securtex in to achieve SR 1 for SBD requirements?
The following table from the Securtex brochure details the tested systems to meet SR1 of SBD. Our full Securitex brochure can be downloaded from our website (https://www.siniat.co.uk/en/performance/securtex) for all details on the concept, design considerations and comprehensive installation guidance.
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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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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 plasterboard be installed horizontally (long edge) as well as vertically?
From a mechanical perspective, you can install plasterboard with the long edge either horizontal or vertically. What is important is the boards are fixed to framing components at the correct centres. With systems that are required to have a fire resistance and are installed to the latest fire regulations and standards, in order to be in line with th
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Does Siniat have solutions for X-Ray rooms?
Siniat do not have any specific solutions for rooms that generate X-Rays. When specifying partitions for such areas, the core wall will be designed to meet the fire resistance, acoustic, duty and height criteria. Siniat boards are not inherently capable of stopping X-Rays. Third party companies take plasterboard from various manufacturers and bond
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What tape I should use when applying taping and jointing finish on Siniat Aquaboard?
With Siniat Aquaboard, the board joints are reinforced with the Siniat Joint tape as other boards. There is not a special tape in this case. The difference that does exist is with the jointing compound. Only Siniat Aquamix can be used for all stages of the joint on Siniat Aquaboard. Further information can be found on the following Siniat Aquabaoar