20mm Mannok PIR Rigid Insulation Board

20mm Mannok Therm Floor / MF is a premium Insulation Board delivering outstanding thermal performance with a fibre-free construction. The product features a rigid thermoset insulation core, protected by low emissivity composite foil facing on both surfaces.

With its superior compressive strength, 20mm Mannok PIR insulation resists the structural loads imposed on floors during use. This versatility makes it suitable for new construction and renovation work across residential and commercial properties.

A major advantage of Mannok PIR Insulation Board is its compatibility with underfloor heating systems. The board performs exceptionally well in suspended timber floors, minimising thermal loss and air leakage. This makes it an excellent choice for improving the energy efficiency of existing floor structures.

Previously marketed as 20mm Quinn Therm QF, this product maintains the same high-performance specifications.

Properties

Manufacturer: Mannok | Quinn Therm

Thickness: 20mm Insulation Board

Weight: 14.54kg

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 20mm

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)

20mm rigid insulation performs excellently in pitched roof applications, whether for new builds or refurbishment projects requiring roof stripping and recovery. The material's strength enables it to bridge rafters and handle loads from roof coverings. The low emissivity facings enhance thermal resistance in the air space above the insulation, boosting overall roof thermal performance.

Benefits of Mannok Therm Wall / MW (MW)

20mm Mannok insulation suits framed walls in new builds and dry lining applications in both new and existing properties. The low emissivity facings enhance cavity thermal performance and reduce wall U-values. With low thermal conductivity, MW requires minimal thickness to meet target design U-values.

Benefits of Mannok Therm Floor / MF (MF)

The 20mm Insulation Board delivers high compressive strength, handling dead and imposed floor loads effectively. Suitable for most residential and commercial applications, it works in new builds and refurbishment projects. The board enhances any Underfloor Heating System and effectively upgrades thermal efficiency in existing floors. It reduces heat loss through air infiltration in suspended timber floors. Low thermal conductivity means less material thickness is needed to achieve your target U-value for better energy performance.

Why Mannok PIR Insulation

20mm Mannok PIR Insulation offers a comprehensive product range engineered for superior quality and performance. Our extensive UK coverage and dedicated Technical Experts team ensure complete project assistance and guidance.

Excellent Performance

Our Floor Insulation range delivers sustained, high-quality thermal performance aligned with low energy building requirements. The boards also feature exceptional compressive strength for durability.

Sustainability

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

Quality Products

Our PIR Insulation range exceeds performance standards set by UK and European regulations. All products carry CE marking and BBA and IAB accreditations. Daily quality control testing against European standards guarantees consistent product quality.

Info

Browse our Mannok range and refine by thickness or coverage using the filters on the left. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the lowest UK Insulation prices.