Mannok 25mm PIR Rigid Insulation Board

25mm Mannok Therm Floor / MF is a premium Insulation Board delivering outstanding thermal performance with a fibre-free design. The product features a rigid thermoset insulation core and is clad on both surfaces with a low emissivity composite foil facing.

With excellent compressive strength, this Mannok PIR insulation withstands floor loads effectively in new construction and renovation work across commercial and residential properties.

Key advantages of Mannok PIR Insulation Board include enhanced underfloor heating systems performance. It suits suspended timber floors particularly well, reducing thermal losses and air leakage. This makes it an excellent choice for improving the energy efficiency of existing floor structures.

Note: 25mm Mannok Therm Floor / MF was previously marketed as 25mm Quinn Therm QF.

Properties

Manufacturer: Mannok | Quinn Therm

Thickness: 25mm Insulation Board

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 25mm

Material: Polyisocyanurate (PIR)

R-Value: 1.14 m2K/W

Density: 30-36 kg/m3

Edge: Butt

Thermal Conductivity: 0.022 W/mk

Core water vapour resistivity (MNs/ gm): ≅300

Finish: Aluminium composite foil

Fire Rate: 20 - 55mm Class 1 Euroclass F | 60 - 150mm Class 1 Euroclass E

Core: Fibre free rigid thermoset insulation core

Compressive Strength: 150 kPa

Applications: Roofs, Walls & Floors. Including underfloor heating systems.

Features: General Purpose PIR Insulation Board

Benefits of Mannok Therm Roof / MR (MR)

This 25mm rigid insulation performs exceptionally well in pitched roof applications, whether for new builds or renovation projects involving roof stripping and recovery. Its structural capacity allows it to bridge across rafters and manage roof loads effectively. The low emissivity facings boost thermal resistance within the air cavity, enhancing overall roof thermal performance.

Benefits of Mannok Therm Wall / MW (MW)

This 25mm Mannok product works well for framed walls in new construction and dry lining applications in both new and existing buildings. The low emissivity facings enhance cavity thermal performance and reduce wall U-values. With low thermal conductivity, MW achieves required design U-values with minimal thickness.

Benefits of Mannok Therm Floor / MF (MF)

The 25mm Insulation Board offers high compressive strength to handle dead and imposed floor loads in commercial and residential settings. Suitable for both new builds and refurbishment work, it optimizes Underfloor Heating System performance and improves thermal efficiency in existing floors. It minimizes heat loss through air infiltration in suspended timber floors. Low thermal conductivity means less material thickness is needed to meet target U-values.

Why Mannok PIR Insulation

Mannok delivers a comprehensive PIR Insulation range engineered for superior quality and performance. Our extensive UK coverage and dedicated Technical Experts team ensure complete project support.

Excellent Performance

Our Floor Insulation products provide reliable, durable thermal performance meeting low energy building requirements. They also deliver exceptional compressive strength.

Sustainability

The product has zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) below 5. It holds an A+ BRE Green Guide rating for environmental excellence. Our Environmental Management System meets ISO 14001 certification standards.

Quality Products

Our PIR Insulation range exceeds national and European Standard performance criteria. All products are CE marked with BBA and IAB accreditations. Daily quality control testing ensures compliance with European standards.

Info

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