Kingspan Thermapitch TP10 20mm Roof Insulation

The 20mm Thermapitch TP10 is a high-performance PIR insulation board engineered for pitched roofs with slate or tile finishes. Suitable for both new construction and retrofit applications across multiple thicknesses, this insulation board cuts and installs with ease for straightforward project completion.

The 20mm Kingspan TP10 delivers excellent thermal performance for pitched roof and attic applications, enabling effective loft conversions and renovation work. It minimises heat escape through your roof structure, supporting reduced heating expenses. The board resists sagging and meets Robust Details requirements under Part E of the Building Regulations for England and Wales.

Properties

Brand: Kingspan

Thickness: 20mm

Length: 2400mm

Width: 1200mm

Model: 20mm Thermapitch TP10

Dimensions: 2,400mm x 1,200mm x 20mm

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: 0.9m2K/W

Size: 1200mm x 2400mm

Thermal Conductivity: 0.022 W/mk

Finish: 20mm 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, 20mm 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

Applications

1. Recommended for new builds or re-roofing, can be used as unventilated insulation between and under rafters.
2. For loft insulation conversion projects, is recommended as ventilated insulation between and under rafters.
3. 20mm Kingspan Insulation is also suitable as unventilated insulation between and over rafters for new builds or re-roofing.

The Facings

During manufacturing, Kingspan 20mm PIR receives a low emissivity composite foil bonded to both surfaces. This reflective layer increases thermal resistance in unventilated cavities adjacent to the board.

The Core

The 20mm Kingspan Thermapitch TP10 core utilises Nilflam® technology, a premium fibre-free rigid thermoset polyisocyanurate (PIR) material. The production process employs a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Compressive Strength

According to BS EN 826:2013 testing (Thermal insulating products for building applications. Determination of compression behavior), 20mm Kingspan PIR insulation typically achieves compressive strength exceeding 140 kPa at 10% compression.

Water vapour resistance

Testing to BS EN 12086:2013 (Thermal insulating products for building applications. Determination of water vapor transmission properties) demonstrates the product typically achieves resistance above 100 MNs/g.

Durability

The lifespan of 20mm TP10 depends on correct installation, adequate structural support, and appropriate usage conditions. When properly installed, the product can deliver an indefinite service life.

Fire performance

20mm Kingspan Insulation TP10 achieves an F Euroclass rating under System 4 AVCP. In pitched roof constructions with appropriate roof coverings, it satisfies national standards for external fire exposure.

Info

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