140mm Kingspan TR26 Flat Roof Insulation Board

Discover the 140mm 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 schemes, the TR26 combines straightforward installation with reliable thermal performance for roof insulation projects requiring rapid deployment.

Product Specification

Brand: Kingspan®

Model: 140mm TR26 Thermaroof

Thickness: 140mm

Length: 2400mm

Width: 1200mm

Weight: 4.8kg/m2

Board Coverage: 2.88m2

Pack Coverage: 5.76m2

Pack Quantity: 2 sheets

R-Value: 6.35 m2K/W

Thermal Conductivity: 0.022 W/mK

Dimensions: 2,400mm x 1,200mm x 140mm

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 140mm Therma TR26 delivers outstanding thermal efficiency for flat roof applications, maximising energy conservation benefits.
2. Mechanically-fixed single-ply waterproofing compatibility: Engineered to work effectively with the majority of mechanically-fixed, single-ply waterproofing systems, providing flexibility across diverse roofing specifications.
3. FM Approval to FM 4470: This insulation board carries FM Approval to FM 4470, confirming compliance with recognised industry quality standards.
4. Straightforward installation and handling: The TR26 features a practical design that simplifies both handling and installation, streamlining project timescales.
5. Versatile application scope: Equally effective for new build and refurbishment works, the 140mm Kingspan Therma accommodates various project types 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 140mm Kingspan Thermaroof TR26 performs 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 applied over a sealed metal deck. A condensation risk assessment should be completed for each installation to confirm suitability.

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 systems, U-value calculations and condensation risk analysis must be undertaken. These evaluations determine the correct insulation thickness for achieving target thermal performance whilst preventing interstitial condensation.

Installation over Existing Bituminous Waterproofing Roof Membrane: Where Kingspan Thermaroof® TR26 is installed above an existing bituminous waterproofing membrane in refurbishment work, the membrane can function as a vapour control layer provided it remains in sound, watertight condition. If the membrane shows signs of deterioration, 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 overlapped and sealed with double-sided self-adhesive tape for optimal performance.

Info

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