Kingspan Thermaroof TR26 150mm Flat Roof Board

The 150mm Kingspan Therma TR26 is a high-performance PIR insulation board engineered for flat roof applications. This product delivers exceptional thermal performance whilst remaining compatible with mechanically-fixed, single-ply waterproofing systems and green roof installations. Ideal for both new builds and refurbishment work, it combines straightforward installation with reliable performance for accelerated construction schedules and roof insulation projects.

Product Specification

Brand: Kingspan®

Model: 150mm TR26 Thermaroof

Thickness: 150mm

Length: 2400mm

Width: 1200mm

Weight: 5.1kg/m2

Board Coverage: 2.88m2

Pack Coverage: 5.76m2

Pack Quantity: 2 sheets

R-Value: 6.80 m2K/W

Thermal Conductivity: 0.022 W/mK

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

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 150mm Therma TR26 delivers outstanding thermal efficiency for flat roof applications, maximising energy conservation and building performance.
2. Mechanically-fixed, single-ply waterproofing compatibility: Engineered to work seamlessly with the majority of mechanically-fixed, single-ply waterproofing systems, providing flexibility across diverse roofing specifications.
3. FM Approval to FM 4470: This insulation meets FM Approval to FM 4470 standards, confirming compliance with recognised industry quality benchmarks.
4. Straightforward installation: The TR26 design prioritises ease of handling and installation, streamlining on-site work and reducing labour time.
5. New build and refurbishment applications: Suitable for both new construction and existing building upgrades, this product adapts to varied project requirements with consistent reliability.
6. Tapered system availability: A tapered insulation system option is available, enabling proper roof slope creation for effective drainage and water management.

Roof Waterproofing

The 150mm 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 in new build roofs, it is recommended to use a separate vapour control layer unless it is being used in conjunction with a sealed metal deck. Additionally, a condensation risk analysis should be conducted for each project to ensure proper installation.

Refurbishment Projects with Existing Insulated Flat Roofs or Insulated Steel Faced Composite Panels: For refurbishment projects involving the addition of roof insulation to existing insulated flat roofs or roofs made of insulated steel faced composite panels, it is crucial to perform a U-value calculation and condensation risk analysis. These assessments are essential in determining the appropriate insulation thickness for achieving the required thermal performance while avoiding interstitial condensation.

Installation over Existing Bituminous Waterproofing Roof Membrane: In refurbishment projects where Kingspan Thermaroof® TR26 is being installed over an existing bituminous waterproofing membrane, the membrane can serve as a vapour control layer if it is in good water tight condition. However, if the membrane is not in good condition, a separate vapour control layer should be installed.

Minimum Requirements for Separate Vapour Control Layer: If a separate vapour control layer is needed, it should consist of a 1000 gauge (250 micron) polythene sheet. All joints should be lapped and sealed using double-sided self-adhesive tape to ensure proper performance.

Info

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