72.5mm Mannok Therm Laminate-Kraft PIR Insulated Plasterboard

72.5mm Mannok Therm Laminate-Kraft / MLK PIR combines a 60mm insulation board with 12.5mm plasterboard in a single composite product, delivering fibre-free thermal performance. The kraft paper facing on one surface and plasterboard on the other creates a versatile solution for multiple building applications.

This product excels when installed beneath roof rafters, effectively reducing heat loss through the roof and eliminating thermal bridging. The paper facer makes it particularly suited to dry-lining work, where it can be secured using dot-and-dab adhesive or mechanical fixings. Previously marketed as 72.5mm Quinn Therm insulated plasterboard QL-Kraft, this product delivers high-performance thermal insulation with proven reliability.

Properties

Model: 72.5mm Mannok Therm Laminate-Kraft

Thickness: 72.5mm

Pack Quantity: 1 sheet

Dimensions: 2,400mm x 1,200mm x 72.5mm ( 60mm 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 Quinn Therm QL-Kraft boards

This 72.5mm Mannok Insulated Plasterboard QL-Kraft represents an excellent choice for new builds and renovation work, particularly where internal dry lining or rafter-level insulation is required. Its low thermal conductivity minimises the board thickness needed to meet target U-values, delivering cost-effective thermal performance. The product streamlines construction by combining thermal insulation and finishing in one step, reducing both labour time and overall project costs.

Applications

1. Cavity wall: QL-Kraft is used in timber frame construction.
2. Solid walls: QL-Kraft is applied for internal dry lining and fixed to plaster dabs.
3. Cavity walls: QL-Kraft is used for internal dry lining and fixed to plaster dabs.
4. Pitched roof: QL-Kraft is installed below rafters to minimize heat loss through the roof.

Composition

Quinn Therm QL-Kraft features a 60mm PIR foam core bonded to either 12.5mm or 9.5mm* plasterboard, with composite kraft paper facings. The gas-filled cellular structure of the foam core delivers both thermal performance and structural strength, whilst the kraft facing enables direct board-to-wall bonding.

Environmental

Certified to ISO 14001 - Environmental Management Systems, Quinn Therm boasts an ozone depletion potential (ODP) of zero and a Global Warming Potential (GWP) of less than 5. QL-Kraft, in particular, has earned an A+ rating when evaluated against BRE's Green Guide.

Info

Browse our Mannok range and filter by thickness or coverage using the left-hand navigation. For project-specific advice or bulk quotations, contact our team by phone on +4402038839057 , email sales@insulationbee or Live Chat - Lowest UK Insulation Prices.