Kingspan Thermafloor TF70 40mm Floor Insulation

40mm Kingspan Thermafloor TF70 delivers outstanding thermal performance as a floor insulation board, with a thermal conductivity rating of 0.022 W/mK. This product suits both solid and suspended floor applications in new builds and refurbishment work. The 40mm insulation boards are straightforward to cut and position, making installation efficient. Multiple thickness options are available to match your specific needs.

Delivering excellent thermal efficiency, this lightweight 40mm floor insulation board is convenient to move, position, and fit. It works well with most underfloor heating arrangements, helping to minimise expenses on groundwork and pipework installation.

Properties

Brand: Kingspan

Thickness: 40mm

Length: 2400mm

Width: 1200mm

Weight: 1.84kg | Thermafloor TF70 has an approximate weight of 3.50 kg/m2 at a thickness of 40 mm.

Model: 40mm Thermapitch TF70

Dimensions: 2,400mm x 1,200mm x 40mm

Compressive Strength: The compressive strength typically exceeds 140 kPa at 10% compression.

Density: 32 Kg/m3

Length: 2400mm

Material: Polyisocyanurate (Kingspan PIR Insulation)

R-Value: 1.8m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 40mm TF70 is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture.

Applications: High performance floor insulation.

Fire Resistance: Under System 4 AVCP, 40mm Thermafloor TF70 has a Euroclass rating of F.

Water vapour resistance: 110 MNs/g

BBA Certified: Yes, No. 14/5133

Features: Improves the Thermal Resistance | Unaffected by air infiltration | Resistant to the passage of water vapour

Here are some "Applications":

The 40mm insulation suits various floor types, such as solid concrete ground floors, beam and block construction, suspended timber ground floors, and timber floors on battens.

The Facings

During production, Kingspan 40mm PIR receives a low emissivity composite foil facing on both surfaces. This reflective layer boosts the thermal resistance of any unventilated cavity positioned next to the board.

The Core

40mm Kingspan Thermafloor TF70 uses Nilflam® technology to create a fibre-free rigid thermoset polyisocyanurate (PIR) core. The manufacturing process employs a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Compressive Strength

When assessed to BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior), 40mm 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 water vapour resistance well above 100 MNs/g.

Durability

The lifespan of 40mm TF70 Floor Insulation depends on correct installation, adequate structural support, and appropriate usage. When properly fitted, the product can perform reliably for many decades.

Fire performance

40mm Kingspan Insulation TF70 carries an F Euroclass rating under System 4 AVCP. When installed in pitched roof applications with suitable roof covering above, it meets national standards for external fire exposure.

Info

Browse our full Kingspan range and refine by thickness or coverage using the left-hand filters. For project-specific advice or bulk pricing requests, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation Prices.