140mm Mannok PIR Rigid Insulation Board

140mm Mannok Therm Floor / MF is a premium Insulation Board delivering outstanding thermal performance with a fibre-free construction. It combines a rigid thermoset insulation core with low emissivity composite foil facing on both surfaces.

This Mannok PIR insulation board features exceptional compressive strength, allowing it to handle the structural loads transmitted through floor systems. It suits both new construction and renovation work across commercial and domestic properties.

A standout advantage of this PIR Insulation Board is its compatibility with underfloor heating systems. For suspended timber floors, it delivers significant heat loss reduction by limiting air movement, making it an excellent upgrade for improving thermal efficiency in existing floor installations.

Previously marketed as 140mm Quinn Therm QF, this product maintains the same proven performance specifications.

Properties

Manufacturer: Mannok | Quinn Therm

Thickness: 140mm Insulation Board

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 140mm

Material: Polyisocyanurate (PIR)

R-Value: 6.36 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 140mm rigid insulation performs excellently in pitched roof applications, whether for new builds or refurbishment projects involving roof stripping and recovery. Its structural capacity allows it to span rafters and manage loads from roof coverings. The low emissivity facings enhance thermal resistance within the air space, boosting overall roof thermal performance.

Benefits of Mannok Therm Wall / MW (MW)

For framed walls in new builds and dry lining applications in both new and refurbished properties, this 140mm Mannok board delivers excellent results. Its low emissivity facings enhance cavity thermal performance and lower wall U-values. The reduced thermal conductivity means less thickness is needed to meet target design U-values.

Benefits of Mannok Therm Floor / MF (MF)

This 140mm Insulation Board offers high compressive strength to resist dead and imposed loads through floor systems, making it suitable for most commercial and domestic applications. It works effectively in both new build and refurbishment scenarios. The board optimises Underfloor Heating System performance and effectively upgrades thermal efficiency in existing floors. It minimises heat loss from air infiltration in suspended timber floors, and its low thermal conductivity reduces the thickness required to achieve target U-values for better energy efficiency.

Why Mannok PIR Insulation

Mannok delivers a comprehensive range of PIR Insulation products engineered for superior quality and performance. Our extensive UK distribution network and dedicated Technical Experts team provide complete project support and guidance.

Excellent Performance

Our Floor Insulation range delivers sustained, high-quality thermal performance that meets low energy building requirements. Combined with exceptional compressive strength, these boards provide reliable long-term results.

Sustainability

This product features 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 national and European regulations. All products carry CE marking and BBA and IAB accreditations. Daily quality control testing ensures compliance with relevant European standards throughout production.

Info

Explore our Mannok range and filter by thickness or coverage using the left-hand navigation. For product suitability advice or bulk pricing enquiries, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Insulation prices.