Brand: Siniat | Gtec
Shop Siniat and GTEC plasterboard at JJ Building Materials for specified internal wall, ceiling and partition projects. The range includes standard board with square or tapered edges, fire-resistant boards, dB Soundboard and Vapour Board with an integrated vapour-control backing. Compare the exact board family, thickness, edge and dimensions with your construction specification, then use our five buying guides to plan the order, finishing work and delivery checks.
Siniat and GTEC plasterboard for internal construction
The GTEC names in this collection identify Siniat board products for different purposes. General lining, acoustic improvement, fire-resisting construction and vapour control are separate selection questions. Start with what the wall or ceiling needs to do, then identify the appropriate product within a supported arrangement. A specialist product name should not replace a complete construction specification.
Keep product identity clear when moving between drawings, manufacturer documents and retail listings. Confirm the board family, thickness, edge profile and supplied dimensions rather than relying only on the brand. Where a document uses different naming from the catalogue, resolve the correspondence before ordering so that the buyer and installer are working from the same selection.
GTEC standard board with square or tapered edges
GTEC Standard Plasterboard 2400 × 1200 × 12.5mm currently offers Square Edge and Tapered Edge variants. It is a choice for suitable general internal partitions, linings and ceilings where the specified construction calls for standard board. Select the edge that suits the agreed layout and finishing arrangement, and keep that variant attached to the order quantity.
Siniat identifies standard board as suitable for appropriate tape-and-joint or skim finishes. The right approach depends on the construction and finishing materials, not simply an assumption based on the edge name. Factory edges, ends and site-cut joints all need to be considered. Agree the intended surface preparation and decorative finish with the installer before a large order is placed.
For refurbishment, establish what the existing lining is and why it is being changed. A damaged patch, a complete reboard and an additional lining are different proposals. Confirm any performance requirements and the interfaces with door frames, sockets, trims and adjacent finishes before treating a new standard sheet as a direct replacement.
Fire-resistant boards for specified systems
GTEC Fire Resistant Square Edge Plasterboard is listed at 2400 × 1200 × 12.5mm. GTEC Fire Resistant Tapered Edge Plasterboard offers 12.5mm and 15mm variants at 2400 × 1200mm. Keep the edge and thickness explicit, and match the selected product to the current supported wall or ceiling construction.
A fire-resistant board does not provide a fixed fire-resistance period on its own. Performance depends on the complete system and its applicable evidence, including the boards, layers, supports and relevant details. Do not convert a product name or reaction-to-fire classification into a number of minutes for an unspecified arrangement.
Ask for the current system reference before ordering. A product data sheet, test report and classification report serve different purposes, and the proposed construction needs appropriate supporting information. Where a component change is proposed, obtain confirmation and update the schedule. A thicker sheet or similar product is not automatically an approved substitute.
Partition and ceiling details should not be transferred casually to structural protection. An encasement proposal needs its own current application-specific system and design information. Keep that enquiry separate from a routine question about board availability, and do not rely on an old project example as a specification for new work.
GTEC dB Soundboard for acoustic planning
GTEC dB Soundboard Tapered Edge Plasterboard is available in 12.5mm and 15mm thicknesses, both at 2400 × 1200mm. Use it as part of a suitable acoustic construction selected for the actual project. A loose board does not establish a guaranteed sound reduction, and thickness alone does not explain the result of a finished wall or ceiling.
Describe the noise issue before choosing the arrangement. Sound passing between rooms differs from echo within a room, and footsteps from another floor raise different questions from speech through a partition. The brief should identify the source, receiving space and existing construction where known, together with any other project requirements.
Check which complete system a quoted acoustic figure describes. Board layers, framing, cavity treatment and interfaces can all matter. Do not transfer a result from one assembly to another merely because both use dB board. Where acoustic and fire requirements overlap, obtain one coherent supported design rather than combining unrelated details.
GTEC Vapour Board and integrated vapour control
GTEC Vapour Board 2400 × 1200 × 12.5mm Tapered Edge has an integrated backing intended to increase vapour resistance within a suitable construction. Siniat describes a metallised polyester layer on the back of the board. This is a distinct characteristic and should not be confused with reduced water absorption in a moisture-resistant board.
Confirm why vapour control is required and how the board fits into the complete build-up. The other layers, existing construction and interfaces need to be considered. Do not add a backed board as a general cure for damp or assume it replaces every other vapour-control detail. Resolve the cause of moisture problems and obtain the appropriate construction guidance first.
Installation choices also need to match the backed product. Do not transfer an ordinary board's fixing or adhesive method without checking. Siniat distinguishes vapour-board installation from some methods described for moisture board. Confirm the exact method and associated materials before the order and installation programme are finalised.
Confirm moisture-resistant product identity before ordering
The collection currently contains a listing titled moisture resistant whose descriptive text refers to vapour board. These are different product categories, so please confirm the supplied product identity with JJ Building Materials before ordering that item. Do not treat the conflicting wording as evidence that the two functions are interchangeable.
For a humid or wet-area proposal, describe the actual exposure and intended finish. Moisture resistance, vapour control and waterproofing should not be used as equivalent terms. The appropriate board and complete surface arrangement need to suit the location, including any direct water exposure and the requirements of the chosen finish system.
Board dimensions, coverage and quantities
A 2400 × 1200mm sheet has a nominal face area of 2.88m². Use that for an initial area estimate, then check the actual layout, cuts and required layers. Door and window openings do not always reduce the number of full sheets directly, because the surrounding pieces still need to be produced within a suitable board arrangement.
Keep different products, thicknesses and edge variants on separate lines. Count each face and layer explicitly where the construction requires them. Record the net requirement and any reasoned allowance separately so the total can be reviewed. Do not use an unexplained surplus to hide uncertainty about the layout or specification.
Confirm the selling unit and availability for the exact selected option. A live catalogue listing does not establish that every variant can be supplied on the same date or in the same quantity. Retain the confirmed order details, especially if an alternative product or delivery arrangement has been discussed.
Delivery, handling and finishing checks
Plan the route from the unloading point to suitable protected storage. Large sheets need turning space and appropriate handling, particularly around stairs and narrow passages. Discuss delivery access and unloading expectations before the delivery is arranged, and do not assume sheets will be carried through the property or upstairs.
Check product identity, variant, quantity and condition when the order arrives. Keep board families identifiable and record discrepancies before distributing them around the building. Protect the sheets from adverse conditions and retain the delivery information alongside the construction schedule. Good records make later repair and maintenance enquiries more precise.
Agree the finishing handover between trades. Identify the jointing or plastering arrangement, relevant preparation products and readiness checks before decoration. A neat painted surface cannot demonstrate every hidden construction detail, so any required inspection and documentation should be planned while the work can still be checked.
Five Siniat and GTEC buying guides
These guides address the main decisions in the current range: vapour-board selection, acoustic refurbishment, fire-system documentation, standard-board renovation and order checking. Use the guide that matches your immediate question, then return to the collection to compare the exact listed products against the agreed specification.
- GTEC Vapour Board: Backing, Moisture and Buying Checks
- GTEC dB Soundboard: Planning an Acoustic Refurbishment
- GTEC Fire Board: System Documents and Substitution Checks
- GTEC Standard Board: Renovation and Finishing Decisions
- Siniat Plasterboard Orders: Variants, Delivery and Records
Siniat and GTEC plasterboard FAQs
Are square and tapered edges the same order option?
No. The standard GTEC listing offers them as separate selectable variants. Keep the selected edge in the order description and confirm it suits the construction and finishing plan. Do not assume a matching board size means the edge choice is unimportant.
Does GTEC fire board give a fixed number of minutes?
Not as an isolated sheet. Fire resistance relates to a supported complete construction. Obtain the current system specification and relevant evidence before choosing the exact board or making substitutions. Product classification and assembled-system fire resistance are different statements.
Will dB Soundboard make a room completely silent?
No general guarantee follows from the product name. The outcome depends on the construction and sound paths. Describe the acoustic problem and check the system behind any quoted performance figure rather than expecting a loose sheet to solve every noise issue.
Is Vapour Board the same as moisture-resistant board?
No. Vapour Board has a backing that increases vapour resistance, while moisture-resistant boards have different characteristics for humid exposure. Confirm the actual requirement and product identity, especially where a listing's title and descriptive text appear to conflict.
How many square metres does a listed full-size sheet cover?
A 2400 × 1200mm sheet has 2.88m² nominal face area. Usable coverage depends on cuts, layout and required layers. Use the area as a starting point and have the proposed board arrangement checked before deciding the final purchasing quantity.
What should I confirm before placing an order?
Confirm the exact product, thickness, edge, dimensions, quantity and construction reference. Resolve conflicting listing information, check availability and arrange delivery access and protected storage. Keep the confirmed schedule available for the person checking the delivery and the installer using the boards.
Compare the Siniat and GTEC products above with your confirmed specification, or contact JJ Building Materials on 01202 113233 for help identifying a listed item and resolving order details. A precise materials schedule makes it easier to buy the right boards for the work ahead.
