Kingspan Thermafloor TF70 150mm Floor Insulation

150mm Kingspan Thermafloor TF70 delivers outstanding thermal performance as a floor insulation board, with a thermal conductivity rating of 0.022 W/mK. Suitable for both solid and suspended floor applications in new builds and refurbishment work, these 150mm insulation boards are straightforward to cut and position during installation. Multiple thickness options are available to match your specific project needs.

Among high-performance 150mm floor insulation boards, this lightweight product offers excellent handling and transport characteristics, making installation efficient. It works well with most underfloor heating systems and can help reduce associated costs such as labour and service connections.

Properties

Brand: Kingspan

Thickness: 150mm

Length: 2400mm

Width: 1200mm

Weight: 1.84kg | Thermafloor TF70 weighs approximately 3.50 kg/m2 at 150mm thickness.

Model: 150mm Thermapitch TF70

Dimensions: 2,400mm x 1,200mm x 150mm

Compressive Strength: Typically exceeds 140 kPa at 10% compression.

Density: 32 Kg/m3

Length: 2400mm

Material: Polyisocyanurate (Kingspan PIR Insulation)

R-Value: 6.80m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: Both faces are covered with a low emissivity composite foil, factory-bonded to the core.

Applications: High performance floor insulation.

Fire Resistance: Achieves Euroclass F rating under System 4 AVCP.

Water vapour resistance: 110 MNs/g

BBA Certified: Yes, No. 14/5133

Features: Enhances thermal resistance | Unaffected by air movement | Resists water vapour transmission

Applications

This 150mm insulation suits numerous floor types, including concrete ground slabs, beam and block construction, suspended timber ground floors, and timber joisted floors.

The Facings

During manufacture, Kingspan 150mm PIR receives a low emissivity composite foil facing on both sides, acting as a reflective layer to boost thermal performance in unventilated cavities adjacent to the board.

The Core

The 150mm Kingspan Thermafloor TF70 core uses Nilflam® technology, a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. Production employs a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Compressive Strength

When tested under BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior), 150mm Kingspan PIR insulation typically achieves compressive strength exceeding 150 kPa at 10% compression.

Water vapour resistance

Testing to BS EN 12086:2013 (Thermal insulating products for building applications. Determination of water vapor transmission properties) shows this product typically delivers resistance well above 100 MNs/g.

Durability

Long-term performance of 150mm TF70 Floor Insulation depends on correct installation, adequate structural support, and appropriate usage conditions. When properly installed, the product can provide lasting performance.

Fire performance

150mm Kingspan Insulation TF70 holds an F Euroclass rating under System 4 AVCP. When installed in pitched roof applications beneath suitable roof covering, it meets national external fire exposure requirements.

Info

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