Kingspan Thermafloor TF70 25mm Floor Insulation

25mm Kingspan Thermafloor TF70 delivers outstanding thermal performance as a floor insulation board, with thermal conductivity of just 0.022 W/mK. Suitable for both solid and suspended floors in new builds and refurbishment work, these 25mm insulation boards are straightforward to cut and position, making installation efficient. Multiple thickness options are available to match your specific project needs.

This lightweight floor insulation board is simple to transport and fit, making it an ideal choice for most underfloor heating applications. Its ease of handling can help reduce installation time and associated costs such as labour and groundwork.

Properties

Brand: Kingspan

Thickness: 25mm

Length: 2400mm

Width: 1200mm

Weight: 1.84kg | Thermafloor TF70 has an approximate weight of 3.50 kg/m2 at a thickness of 25 mm.

Model: 25mm Thermapitch TF70

Dimensions: 2,400mm x 1,200mm x 25mm

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: 1.1m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 25mm 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, 25mm 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 25mm insulation works across a broad spectrum of floor types, from solid concrete ground-based floors and beam-and-block construction to suspended timber ground floors and timber floors on battens.

The Facings

During production, Kingspan 25mm PIR receives a low emissivity composite foil facing on both surfaces. This reflective layer boosts the thermal resistance of any unventilated cavity adjacent to the board.

The Core

The 25mm Kingspan Thermafloor TF70 core employs Nilflam® technology, a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. The manufacturing process uses 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), 25mm Kingspan PIR insulation typically achieves compressive strength exceeding 150 kPa at 10% compression.

Water vapour resistance

Under BS EN 12086:2013 (Thermal insulating products for building applications. Determination of water vapor transmission properties) testing, this product typically achieves resistance well above 100 MNs/g.

Durability

The lifespan of 25mm TF70 Floor Insulation depends on correct installation, adequate structural support, and appropriate usage conditions. When properly installed, it can perform reliably for many decades.

Fire performance

25mm Kingspan Insulation TF70 carries an F Euroclass rating under System 4 AVCP. When installed in pitched roof applications beneath appropriate roof covering, it meets national standards for external fire exposure.

Info

Browse our full Kingspan range and refine by thickness or coverage using the filters on the left. For advice on product suitability for your project or to request a bulk discount quotation, please contact us on +4402038839057, email sales@insulationbee or use Live Chat - Competitive UK Insulation Pricing.