Kingspan Thermapitch TP10/TF70/TW55 1200mm x 2400mm – 120mm

Kingspan Thermapitch TP10/TF70/TW55 1200mm x 2400mm – 120mm is a high-performance rigid thermoset polyisocyanurate (PIR) insulation board engineered for superior thermal efficiency in pitched roofs, walls, and floors. Marketed under three names — Thermapitch TP10, Thermafloor TF70, and Thermawall TW55 — these boards share identical technical specifications and are simply certified under different designations to suit specific applications. With a certified thermal conductivity of just 0.022 W/mK, this 120mm PIR board is among the most thermally efficient insulation products available to UK trade and self-build customers.

Key Features and Specifications

• Core material: Fibre-free rigid thermoset polyisocyanurate (PIR)
• Facings: Low-emissivity composite foil bonded to both sides
• Dimensions: 1200mm × 2400mm × 120mm
• Coverage per board: 2.88 m²
• Thermal conductivity (λ): 0.022 W/mK
• Compressive strength: Approximately 140 kPa
• Moisture absorption: As low as 2% — highly resistant to water vapour transmission
• Blowing agent: Zero Ozone Depletion Potential (ODP); low Global Warming Potential (GWP); CFC and HCFC free
• Green Guide Rating: A+
• Certifications: BBA Certificate 14/5133; BS EN 13165:2012+A2:2016; UKCA Declaration of Performance; Robust Details Part E (England & Wales); BES 6001
• Fire classification: Euroclass F to BS EN 13501-1:2018
• Pack weight: Approximately 11.06 kg

Applications

• Pitched roof insulation (TP10): Between, under, or over rafters in tiled or slated warm pitched roofs; suitable for both ventilated and unventilated roof constructions
• Loft conversion and warm loft insulation: Ideal for creating usable attic space and reducing heat loss through the roof
• Wall insulation (TW55): Between studs or as insulating sheathing in timber and steel framing systems
• Floor insulation (TF70): Solid concrete and suspended timber ground floors
• New build and retrofit projects: Lightweight and easy to cut with a fine-toothed saw, making it suitable for both new construction and refurbishment

Why Choose This Product

The Kingspan Thermapitch TP10/TF70/TW55 120mm board delivers one of the highest thermal resistance values per millimetre of any mainstream insulation product, helping buildings meet and exceed Part L of the Building Regulations (England & Wales). Its foil facings resist air infiltration and moisture ingress, protecting the building fabric over the long term. The board will not sag, rot, or provide food value to vermin, ensuring a lifespan that matches the building itself. Backed by BBA certification and an A+ Green Guide Rating, it is a trusted choice for architects, main contractors, roofers, and DIY self-builders alike.

Delivery in and Around London

We deliver Kingspan Thermapitch TP10/TF70/TW55 120mm boards to London boroughs including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply to the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Boards are available individually or in trade quantities — bulk orders are welcome. Contact us to confirm lead times and delivery options for your area.