Kingspan Thermapitch TP10 150mm Roof Insulation

The 150mm 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 product comes in multiple thicknesses and offers straightforward cutting and installation. The 150mm boards deliver excellent thermal efficiency for pitched roof and attic spaces, helping to minimise heat loss and reduce energy consumption whilst resisting sagging. It meets Robust Details requirements for Part E of the Building Regulations across England and Wales.

Properties

Brand: Kingspan

Thickness: 150mm

Length: 2400mm

Width: 1200mm

Model: 150mm Thermapitch TP10

Dimensions: 2,400mm x 1,200mm x 150mm

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: 6.80 m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 150mm 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, 150mm Thermapitch TP10 has a Euroclass rating of F.

Water vapour resistance: 110 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, it serves as ventilated insulation installed between and under rafters.
3. Also performs well as unventilated insulation between and over rafters in new construction or re-roofing scenarios.

Facing System

The Kingspan 150mm PIR boards feature a low emissivity composite foil bonded to both surfaces during production. This reflective layer enhances thermal performance in unventilated cavities adjacent to the board.

Insulation Core

150mm Kingspan Thermapitch TP10 utilises Nilflam® technology, 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

Testing to BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior) demonstrates that 150mm Kingspan PIR insulation typically achieves compressive strength exceeding 140 kPa at 10% compression.

Moisture Resistance

When assessed under BS EN 12086:2013 (Thermal insulating products for building applications. Determination of water vapor transmission properties), the product consistently achieves water vapour resistance well above 100 MNs/g.

Long-Term Performance

Longevity depends on correct installation, adequate structural support, and appropriate usage conditions. When properly installed, the product can deliver an extended service life.

Fire Safety

150mm Kingspan Insulation TP10 carries an F Euroclass rating under System 4 AVCP. When installed in pitched roof constructions beneath appropriate roof coverings, it satisfies national requirements for external fire exposure.

Info

Browse our full Kingspan range and refine by thickness or coverage using the filters on the left. For project-specific advice or bulk quotations, contact us by phone on +4402038839057, email sales@insulationbee or use Live Chat for the best UK insulation prices.