Kingspan Thermapitch TP10 40mm Roof Insulation

The 40mm Thermapitch TP10 is a high-performance PIR insulation board engineered for pitched roofs with slate or tile coverings. Suitable for both new construction and retrofit applications, this insulation board offers excellent thermal performance with straightforward installation and cutting capabilities.

This 40mm Kingspan TP10 delivers outstanding thermal efficiency for pitched roof and attic spaces, enabling loft conversions and renovation work. It significantly reduces heat loss through the roof structure, contributing to lower energy consumption. The product resists sagging and complies with Robust Details requirements under Part E of the Building Regulations for England and Wales.

Properties

Brand: Kingspan

Thickness: 40mm

Length: 2400mm

Width: 1200mm

Model: 40mm Thermapitch TP10

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: 1.80m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 40mm TP10 is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture.

Applications: Tiled or Slated Pitched Warm Roof

Fire Resistance: Under System 4 AVCP, 40mm Thermapitch TP10 has a Euroclass rating of F.

Water vapour resistance: 100 MNs/g

BBA Certified: Yes, No. 14/5133

Features: Improves the Thermal Resistance

Application Options

1. Ideal for new builds and re-roofing projects, functioning as unventilated insulation positioned between and beneath rafters.
2. For loft insulation conversion work, this product works as ventilated insulation installed between and under rafters.
3. 40mm Kingspan insulation also performs well as unventilated insulation between and over rafters in new construction or re-roofing scenarios.

Foil Facing

Kingspan 40mm PIR boards feature a low emissivity composite foil bonded to both surfaces during production. This reflective layer boosts thermal resistance in unventilated cavities adjacent to the board.

Insulation Core

The core of 40mm Kingspan Thermapitch TP10 utilises Nilflam® technology, delivering a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. Manufacturing employs a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Compression Performance

Tested to BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior), 40mm Kingspan PIR insulation typically achieves compressive strength exceeding 140 kPa at 10% compression.

Moisture Resistance

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

Long-Term Performance

Product longevity depends on correct installation, adequate structural support, and appropriate usage conditions. When installed properly, it can provide extended service life.

Fire Rating

40mm Kingspan Insulation TP10 achieves an F Euroclass rating under System 4 AVCP. When installed in pitched roof assemblies beneath suitable roof coverings, it meets national requirements for external fire exposure.

Info

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