75mm Mannok PIR Rigid Insulation Board

75mm Mannok Therm Floor / MF is a premium Insulation Board delivering outstanding performance with a fibre-free construction. The product features a rigid thermoset insulation core and comes with low emissivity composite foil facing on both surfaces.

With its superior compressive strength, 75mm Mannok PIR insulation resists dead and imposed loads effectively, making it suitable for new build and refurbishment applications in commercial and domestic properties.

A key advantage of Mannok PIR Insulation Board is its compatibility with underfloor heating systems. The board performs particularly well in suspended timber floors, reducing heat loss and preventing air infiltration. This makes it an excellent choice for improving thermal efficiency in existing floor installations.

Previously marketed as 75mm Quinn Therm QF, this product maintains the same proven performance characteristics.

Properties

Manufacturer: Mannok | Quinn Therm

Thickness: 75mm Insulation Board

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 75mm

Material: Polyisocyanurate (PIR)

R-Value: 3.18 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 for Pitched Roof Applications

75mm rigid insulation suits pitched roof installations in new builds and refurbishment projects involving roof stripping and recovery. The material spans rafters effectively and handles loads from roof coverings. Low emissivity facings enhance thermal resistance within air spaces, boosting overall roof thermal performance.

Benefits for Framed Wall Applications

75mm Mannok insulation works well for framed walls in new construction and dry lining in both new build and refurbishment schemes. The low emissivity facings improve cavity thermal performance and reduce wall U-values. Its low thermal conductivity means less thickness is needed to meet design U-value targets.

Benefits for Floor Applications

The 75mm Insulation Board delivers high compressive strength to handle dead and imposed loads through floors, suitable for most commercial and domestic settings. It works for both new build and refurbishment projects. The board enhances Underfloor Heating System performance and upgrades thermal efficiency in existing floors. It minimises heat loss from air infiltration in suspended timber floors. Low thermal conductivity reduces the thickness required to achieve target U-values for better energy efficiency.

Why Choose Mannok PIR Insulation

75mm Mannok PIR Insulation offers a comprehensive product range delivering superior quality and performance. Our nationwide distribution network and in-house Technical Experts team provide complete project support.

Excellent Performance

Our Floor Insulation products deliver outstanding, durable thermal performance that supports low energy building standards. The boards also feature exceptional compressive strength.

Sustainability

The product has zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) below 5. It holds an A+ rating from BRE Green Guide for excellent environmental credentials. Our Environmental Management System is ISO 14001 certified.

Quality Products

Our PIR Insulation products exceed national and European Standard performance requirements. They are CE marked with BBA and IAB accreditations. Daily quality control testing ensures compliance with all relevant European standards.

Info

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