Kingspan Thermafloor TF70 20mm Floor Insulation

20mm 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, it works equally well in new builds and refurbishment schemes. These 20mm insulation boards are straightforward to cut and position, making installation straightforward. Multiple thickness options are available to match your specific project needs.

Among the most thermally effective 20mm floor insulation boards, this lightweight product is convenient to move, position, and fit. It integrates seamlessly with most underfloor heating arrangements, helping to minimise expenses on aspects like ground preparation and pipework installation.

Properties

Brand: Kingspan

Thickness: 20mm

Length: 2400mm

Width: 1200mm

Weight: 1.84kg | Thermafloor TF70 has an approximate weight of 3.50 kg/m2 at a thickness of 20 mm.

Model: 20mm Thermapitch TF70

Dimensions: 2,400mm x 1,200mm x 20mm

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: 0.90m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 20mm 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, 20mm 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

Applications

The 20mm insulation suits a wide range of floor types, including concrete slab foundations, beam and block construction, suspended timber ground floors, and timber joists on battens.

Surface Facings

During production, Kingspan 20mm PIR receives a low emissivity composite foil layer on each face, which acts as a reflective barrier to boost thermal performance in unventilated cavities adjacent to the board.

Insulation Core

20mm Kingspan Thermafloor TF70 employs Nilflam® technology, a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. The manufacturing process utilises a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Compression Performance

When assessed to BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior), 20mm Kingspan PIR insulation regularly achieves compressive strength exceeding 150 kPa at 10% compression.

Moisture Vapour Resistance

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

Long-Term Performance

The lifespan of 20mm TF70 Floor Insulation depends on correct installation, adequate structural support, and appropriate usage conditions. When properly fitted, it can perform effectively for many years.

Fire Safety

20mm Kingspan Insulation TF70 achieves an F Euroclass rating under System 4 AVCP. When installed in sloped roof applications beneath appropriate roof coverings, it satisfies UK fire safety requirements for external exposure.

Info

Browse our full Kingspan range and refine by thickness or board dimensions using the filters on the left. For guidance on product suitability for your application, or to request a bulk quotation, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.