Kingspan Thermapitch TP10 50mm Pitched Roof Board

The 50mm Thermapitch TP10 is a high-performance PIR insulation board engineered for pitched roofs with slate or tile coverings. Ideal for both new construction and retrofit applications, this product comes in multiple thicknesses and delivers straightforward cutting and installation.

This 50mm Kingspan TP10 board offers outstanding thermal performance for pitched roof and attic spaces, enabling loft conversions and renovation work whilst minimising roof heat loss and lowering energy consumption. The material resists sagging and complies with Robust Details for Part E of the Building Regulations across England and Wales.

Properties

Brand: Kingspan

Thickness: 50mm

Length: 2400mm

Width: 1200mm

Model: 50mm Thermapitch TP10

Dimensions: 2,400mm x 1,200mm x 50mm

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: 2.25m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 50mm 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, 50mm 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. Suitable for new builds and re-roofing projects as unventilated insulation positioned between and beneath rafters.
2. For loft insulation conversion work, use as ventilated insulation installed between and under rafters.
3. Works well as unventilated insulation between and over rafters in new construction or re-roofing scenarios.

The Facings

During manufacturing, Kingspan 50mm PIR receives a low emissivity composite foil layer bonded to both faces. This reflective surface enhances thermal resistance in unventilated cavities adjacent to the board.

The Core

The 50mm Kingspan Thermapitch TP10 core utilises Nilflam® technology, a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. Production employs a zero Ozone Depletion Potential (ODP) blowing agent with minimal Global Warming Potential (GWP).

Compressive Strength

Testing to BS EN 826:2013 (Thermal insulating products for building applications. Determination of compression behavior) shows 50mm Kingspan PIR insulation typically achieves compressive strength exceeding 140 kPa at 10% compression.

Water Vapour Resistance

According to 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.

Durability

Product longevity depends on correct installation, adequate structural support, and appropriate usage conditions. When properly installed, this board can deliver an extended service life.

Fire Performance

50mm Kingspan Insulation TP10 achieves an F Euroclass rating under System 4 AVCP. When installed in pitched roof constructions beneath appropriate roof coverings, it satisfies national external fire exposure requirements.

Info

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