Kingspan Thermaroof TR26 115mm Flat Roof Board

Discover the 115mm Kingspan Therma TR26, a high-performance PIR insulation board engineered for flat roof applications. This product delivers exceptional thermal performance and integrates seamlessly with mechanically-fixed, single-ply waterproofing systems and green roof installations. Suitable for both new builds and refurbishment work, the TR26 offers straightforward installation and rapid deployment for time-critical projects requiring reliable roof insulation solutions.

Product Specification

Brand: Kingspan®

Model: 115mm TR26 Thermaroof

Thickness: 115mm

Length: 2400mm

Width: 1200mm

Weight: 3.99kg/m2

Board Coverage: 2.88m2

Pack Coverage: Min quantity 1000m2

R-Value: 5.0 m2K/W

Thermal Conductivity: 0.022 W/mK

Dimensions: 2,400mm x 1,200mm x 115mm

Colour: Light Yellow | Silver

Compressive Strength: 150kPa

Vapour resistivity: 100

Density: 32kg/m3

Material: PIR Insulation Polyisocyanurate (rigid polyurethane foam PU)

Profile: Square edge

Finish: Low emissivity composite foil facings

Applications: Used for flat roofs waterproofed with mechanically fixed single-ply waterproofing.

BBA Certified: Yes

Features: Fully compatible with flat roof waterproofing and green roof systems

Key Features:

1. Superior thermal performance: The 115mm Therma TR26 provides outstanding thermal efficiency for flat roof applications, delivering significant energy conservation benefits.
2. Compatibility with mechanically-fixed, single-ply waterproofing systems: Engineered for use with the majority of mechanically-fixed, single-ply waterproofing systems, TR26 provides a flexible solution across diverse roofing specifications.
3. FM Approval to FM 4470: This insulation carries FM Approval to FM 4470, confirming compliance with recognised industry performance standards.
4. Straightforward handling and installation: The TR26 features a practical design that simplifies handling and installation, enabling rapid project completion.
5. Suitable for new build and refurbishment: Applicable to both new construction and refurbishment applications, 115mm Kingspan Therma delivers dependable performance across varied project types.
6. Tapered insulation system option: Therma TR26 is available as a tapered insulation system, enabling the creation of roof slope for effective drainage and water management.

Roof Waterproofing

115mm Kingspan Thermaroof TR26 performs effectively with most mechanically fixed single–ply waterproofing membranes.

Water Vapour Control

Installation Guidelines: New Build Roofs: When installing Kingspan Thermaroof® TR26 on new build roofs, a separate vapour control layer is typically required unless used with a sealed metal deck. A condensation risk analysis should be undertaken for each installation to confirm appropriate specification.

Refurbishment Projects with Existing Insulated Flat Roofs or Insulated Steel Faced Composite Panels: For refurbishment work involving the addition of roof insulation to existing insulated flat roofs or insulated steel faced composite panel roofs, U-value calculation and condensation risk analysis are essential. These evaluations determine the correct insulation thickness for achieving required thermal performance whilst preventing interstitial condensation.

Installation over Existing Bituminous Waterproofing Roof Membrane: When Kingspan Thermaroof® TR26 is installed over existing bituminous waterproofing membranes in refurbishment projects, the membrane may function as a vapour control layer if it remains in good watertight condition. Where the membrane is compromised, a separate vapour control layer must be installed.

Minimum Requirements for Separate Vapour Control Layer: Where a separate vapour control layer is required, use a 1000 gauge (250 micron) polythene sheet. All joints must be lapped and sealed with double-sided self-adhesive tape to ensure effective performance.

Info

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