Product Overview
Insulated plasterboard, measuring 102.5mm in overall thickness for use on internal walls and ceilings.
It combines a rigid polyisocyanurate (PIR) insulation core with a 12.5mm tapered-edge plasterboard lining. This dual-purpose construction enhances thermal performance while providing a surface ready for direct decoration.
Faced with foil, the PIR layer improves insulation and acts as a vapour control barrier, reducing heat loss and regulating moisture within the building fabric.
The bonded plasterboard removes the need for a separate lining, saving time on site and delivering a clean, professional finish.
At 102.5mm thick (90mm PIR plus 12.5mm plasterboard), this board is designed for situations where high insulation values are needed on internal walls.
It is typically used in new-build housing and extensions where wall thickness can be planned in from the outset, allowing designers to achieve stringent U-values without layering multiple products.
Features & Benefits
- 2-in-1 board (insulation + plasterboard): Speeds up installation by combining thermal lining and finishing in a single sheet.
- PIR insulation core (0.022 W/m·K): Reduces heat loss while limiting required build-up depth.
- Tapered edge plasterboard: Allows for neat jointing, skim finishing, and a paint-ready surface.
- Inbuilt vapour control layer: Provides moisture resistance and helps limit condensation risk.
- Lightweight but rigid: Easy to cut, handle, and install with standard tools.
- Environmental credentials: Zero ODP, low GWP blowing agent, and BRE Green Guide Rating A+.
- Board size 2400 x 1200mm: Standard plasterboard dimensions minimise joints and speed coverage.
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Thickness 102.5mm (90mm + 12.5mm): Suited to new-builds and extensions where meeting low U-values is a priority.
Applications
- Solid masonry walls: Upgrading thermal performance with a drylined finish.
- Roofs (pitched/flat): Used as the underneath layer of insulation between or under rafters and joists.
- Timber frame lining: Provides thermal lining and ready-to-finish surfaces in frame constructions.
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Internal wall and ceiling linings: Fast, efficient upgrade in both new-build and refurbishment projects.
Installation Guidance
- Fixing options: Suitable for dot-and-dab adhesive bonding or mechanical fixings.
- Joint treatment: Use joint tape and compound at tapered edges for a smooth finish.
- Cutting and handling: Score and snap plasterboard; use fine-toothed saw for PIR core; handle with care to avoid edge damage.
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Moisture precautions: Store flat, dry, and covered; protect from prolonged sunlight or damp before installation.
Compliance & Performance
- Thermal conductivity: 0.022 W/m·K (PIR insulation).
- Reaction to fire: Euroclass B-s1, d0 (BS EN 13501-1).
- Compressive strength: ≥120 kPa (BS EN 826).
- Environmental performance: Zero ODP, low GWP, BRE Green Guide Rating A+.