70mm 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, this product works equally well in new builds and refurbishment schemes. These 70mm insulation boards are straightforward to cut and position, making installation efficient and straightforward. Multiple thickness options are available to match your specific project needs.
Among the most thermally effective 70mm 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 associated with groundwork preparation and service routing.
Brand: Kingspan
Thickness: 70mm
Length: 2400mm
Width: 1200mm
Weight: 1.84kg | Thermafloor TF70 has an approximate weight of 3.50 kg/m2 at a thickness of 70 mm.
Model: 70mm Thermapitch TF70
Dimensions: 2,400mm x 1,200mm x 70mm
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: 3.15m2K/W
Size: 1200mm x 2400mm
Thermal Conductivity: 0.022 W/mk
Finish: 70mm 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, 70mm 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
The 70mm insulation performs well across numerous applications, from solid concrete ground-level floors through to beam and block construction, suspended timber ground floors, and timber floors mounted on battens.
Throughout production, Kingspan 70mm PIR receives a low emissivity composite foil facing on both surfaces, functioning as a reflective layer that boosts the thermal performance of any unventilated cavity adjacent to the board.
70mm Kingspan Thermafloor TF70 utilises Nilflam® technology at its core, delivering a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. The production method employs a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).
Following testing to BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior), 70mm Kingspan PIR insulation typically achieves compressive strength exceeding 150 kPa at 10% compression.
Per BS EN 12086:2013 (Thermal insulating products for building applications. Determination of water vapor transmission properties) assessment, this product routinely demonstrates resistance well above 100 MNs/g.
The lifespan of 70mm TF70 Floor Insulation relies on correct fitting, adequate structural support, and proper usage conditions. When properly installed, the product can perform indefinitely.
70mm 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 national requirements for external fire exposure.
Browse our full Kingspan range and narrow results by thickness or coverage using the filters on the left. For advice on product suitability for your application, or to request a bulk discount quotation, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK **[Insulation Prices.
















