92.5mm Mannok Therm Laminate-Kraft PIR Plasterboard

92.5mm Mannok Therm Laminate-Kraft / MLK PIR combines an 80mm insulation board with 12.5mm plasterboard in a single composite product, delivering fibre-free thermal performance. This board features kraft paper facing on one surface and plasterboard bonded to the reverse, making it suitable for various insulation applications.

The product excels when installed beneath roof rafters, effectively reducing heat loss and eliminating thermal bridging pathways. Its paper-faced construction makes it particularly effective for dry-lining work, where it can be secured using dot-and-dab adhesive or mechanical fixings.

Formerly marketed as 92.5mm Quinn Therm QL-Kraft, this insulated plasterboard delivers high-performance thermal insulation with reliable structural integrity.

Properties

Model: 92.5mm Mannok Therm Laminate-Kraft

Thickness: 92.5mm

Pack Quantity: 1 sheet

Dimensions: 2,400mm x 1,200mm x 92.5mm ( 80mm PIR bonded to 12.5mm Plasterboard)

Length: 2400mm

Width: 1200mm

Compressive Strength: >>150kPa

Material: Phenolic core ǀ Gypsum plasterboard

Thermal Conductivity: 0.022 W/mK across all thicknesses.

Fire Classification: Euroclass C-s1, d0

Coverage: 2.88m2

Surface: Composite kraft paper facing adhered to 12.5mm or 9.5mm*plasterboard

Facing: Paper facing on one side & plasterboard bonded to the other side

Finish: Kraft facing ǀ Composite foil

Core water vapour resistivity: 2743 x 1200

Edge: Butt

Fire Performance: BS 476-7 / Class 1

Benefits of Mannok Therm QL-Kraft Boards

This 92.5mm Mannok Insulated Plasterboard is engineered for both new builds and renovation projects, particularly for internal dry-lining and rafter applications. Its low thermal conductivity permits thinner installations to achieve target U-values, delivering an efficient and economical approach. The board streamlines construction by combining thermal insulation and finishing in a single step, reducing labour requirements and project timescales.

Applications

1. Cavity wall: Suitable for timber frame construction applications.
2. Solid walls: Applied for internal dry-lining and fixed using plaster dabs.
3. Cavity walls: Deployed for internal dry-lining and secured with plaster dabs.
4. Pitched roof: Installed below rafters to reduce heat loss through roof structures.

Composition

Mannok Therm QL-Kraft comprises an 80mm PIR insulation foam core bonded to 12.5mm or 9.5mm plasterboard, with composite kraft paper facings applied. The thermal performance and load-bearing capacity derive from gas-filled cells within the foam matrix, whilst the kraft facing enables direct board adhesion to wall surfaces.

Environmental Certified

Certified to ISO 14001 Environmental Management Systems, this product demonstrates zero ozone depletion potential (ODP) and Global Warming Potential (GWP) below 5. It achieves an A+ rating under BRE's Green Guide assessment criteria.

Info

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