120mm Kingspan Thermaroof TR26 Flat Roof Board

Discover 120mm Kingspan Therma TR26, a high-performance PIR insulation board engineered for flat roof applications. This product delivers exceptional compatibility with mechanically-fixed, single-ply waterproofing systems and integrates seamlessly with green roof installations. Suitable for both new construction and refurbishment work, the TR26 offers straightforward installation and reliable performance. Its proven installation methodology supports rapid building schedules whilst maintaining quality standards for flat roof insulation projects.

Product Specification

Brand: Kingspan®

Model: 120mm TR26 Thermaroof

Thickness: 120mm

Length: 2400mm

Width: 1200mm

Weight: 4.1kg/m2

Board Coverage: 2.88m2

Pack Coverage: 5.76m2

Pack Quantity: 2 sheets

R-Value: 5.45 m2K/W

Thermal Conductivity: 0.022 W/mK

Dimensions: 2,400mm x 1,200mm x 120mm

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 120mm TR26 delivers outstanding thermal efficiency for flat roof applications, maximising energy conservation benefits.
2. Mechanically-fixed single-ply waterproofing compatibility: Engineered to work with the majority of mechanically-fixed, single-ply waterproofing systems, providing flexibility across diverse roofing specifications.
3. FM Approval to FM 4470: Certified to FM 4470 standards, guaranteeing compliance with recognised industry quality benchmarks.
4. Straightforward installation: The product's design prioritises ease of handling and installation, streamlining the construction process.
5. Versatile application scope: Performs reliably in both new build and refurbishment scenarios, adapting to varied project requirements.
6. Tapered system availability: Available as a tapered insulation system to establish the required roof slope, facilitating effective drainage and water management.

Roof Waterproofing

120mm Kingspan Thermaroof TR26 functions effectively with most mechanically fixed single–ply waterproofing membranes.

Water Vapour Control

Installation Guidelines: New Build Roofs: For new build roof installations of Kingspan Thermaroof® TR26, a separate vapour control layer is typically recommended unless the product is used with a sealed metal deck. A condensation risk assessment should be completed for each specific project to confirm correct installation methodology.

Refurbishment Projects with Existing Insulated Flat Roofs or Insulated Steel Faced Composite Panels: When adding roof insulation to existing insulated flat roofs or insulated steel faced composite panel roofs during refurbishment, U-value calculations and condensation risk analysis are essential. These evaluations determine the correct insulation thickness for meeting thermal requirements whilst preventing interstitial condensation.

Installation over Existing Bituminous Waterproofing Roof Membrane: When Kingspan Thermaroof® TR26 is installed over an existing bituminous waterproofing membrane during refurbishment, the membrane can function as a vapour control layer provided it maintains good watertight condition. If 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, specify a 1000 gauge (250 micron) polythene sheet. All joints must be overlapped and sealed using double-sided self-adhesive tape for optimal performance.

Info

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