Kingspan Thermaroof TR26 105mm Flat Roof Board

Discover the 105mm 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 membranes and integrates seamlessly with green roof systems. Ideal for both new construction and refurbishment work, the TR26 combines straightforward installation with reliable thermal performance, making it an excellent choice for accelerated building schedules and efficient roof insulation projects.

Product Specification

Brand: Kingspan®

Model: 105mm TR26 Thermaroof

Thickness: 105mm

Length: 2400mm

Width: 1200mm

Weight: 3.74kg/m2

Board Coverage: 2.88m2

Pack Coverage: 8.64m2

Pack Quantity: 3 sheets

R-Value: 4.76m2K/W

Thermal Conductivity: 0.022 W/mK

Dimensions: 2,400mm x 1,200mm x 105mm

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 105mm Therma TR26 delivers outstanding thermal efficiency for flat roof applications, maximising energy conservation and reducing heat loss.
2. Compatibility with mechanically-fixed, single-ply waterproofing systems: Engineered to work effectively with the majority of mechanically-fixed, single-ply waterproofing membranes, providing flexibility across diverse roofing specifications.
3. FM Approval to FM 4470: This insulation carries FM Approval to FM 4470, demonstrating compliance with rigorous industry quality and performance standards.
4. Simple handling and installation: The TR26 features a straightforward design that facilitates quick and efficient installation, reducing on-site labour and project timescales.
5. Suitable for new build and refurbishment: Applicable to both new construction projects and existing roof upgrades, the 105mm Kingspan Therma offers dependable performance across all project types.
6. Tapered insulation system option: Available as a tapered insulation system, enabling the creation of necessary roof slopes for optimal drainage and water management.

Roof Waterproofing

The 105mm 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 recommended unless the product is used with a sealed metal deck. A condensation risk analysis should be completed for each installation to confirm correct specification.

Refurbishment Projects with Existing Insulated Flat Roofs or Insulated Steel Faced Composite Panels: For refurbishment work involving additional roof insulation over existing insulated flat roofs or insulated steel faced composite panels, perform a U-value calculation and condensation risk analysis. These evaluations determine the correct insulation thickness for meeting thermal requirements whilst preventing interstitial condensation.

Installation over Existing Bituminous Waterproofing Roof Membrane: When installing Kingspan Thermaroof® TR26 over existing bituminous waterproofing membranes during refurbishment, the membrane can function as a vapour control layer provided it remains in sound, watertight condition. If the membrane shows signs of deterioration, install a separate vapour control layer.

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 for optimal performance.

Info

Browse our Kingspan range and filter by thickness or coverage using the left-hand navigation. For technical advice on product suitability for your project or to request a quantity discount quotation, contact us by phone on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.