This product marries a conventional plasterboard skin with a core of extruded polystyrene (XPS). Unlike the bead‑type EPS, XPS is a dense, closed‑cell foam that offers a higher compressive strength and a consistently superior thermal rating per millimetre. The result is a thin, robust panel that delivers genuine insulation without the bulk of traditional cavity fills. For projects where space, durability and thermal performance are non‑negotiable, XPS‑infused plasterboard offers a compelling compromise. It delivers the familiar handling characteristics of traditional plasterboard while embedding a high‑grade insulation that remains steadfast under pressure, moisture and time. In short, it is a pragmatic, future‑ready solution that aligns with contemporary building regulations and the ever‑growing demand for energy‑efficient construction.
CHARACTERISTICS
- Thermal Efficiency: XPS provides an R‑value of roughly 0.035 W·m⁻²·K⁻¹ per millimetre, meaning a 12 mm board can achieve the same heat‑loss reduction as a 30 mm layer of conventional insulation.
- Structural Rigidity: The extruded foam resists deformation under load, making the board suitable for external walls, ceilings and high‑traffic partitions.
- Moisture Management: Its closed‑cell matrix is virtually impermeable to water, protecting the plaster skin from damp ingress and reducing the risk of mould.
- Fire Performance: When encased in a fire‑rated plaster facing, the assembly complies with UK Class A fire standards, offering a safe solution for both residential and commercial applications.
- Longevity: XPS does not shrink or settle over time, guaranteeing a stable thermal envelope throughout the building’s life‑cycle.
APPLICATION
- External façades – retrofit of period properties where external wall thickness must remain unchanged.
- Internal partitions – offices, schools and hospitals that require both acoustic separation and thermal control.
- Ceiling decks – lightweight, load‑bearing installations in multi‑storey blocks.
Typical Fitting Methods
- Mechanical Fixing involves securing each plasterboard panel directly to the supporting framework (timber joists, metal studs, or a secondary furring channel) with screws or special fasteners. The method can be carried out with battens (additional wooden or metal strips fixed to the main structure) or without battens, attaching straight to the primary framing.
- The “dot & dab” method secures plasterboard panels to the substrate using a strong, quick‑setting adhesive (commonly a polymer‑based or cement‑based fixing paste). Small “dots” of paste are applied to the back of the board, and the board is pressed onto the wall or ceiling (“dab”). No mechanical fasteners are used, although a few supplementary screws are often added for extra security.
