25mm Unilin FR-BGM Flat Roof Insulation Board

The 25mm FR-BGM Flat Roof Insulation Board from Unilin combines a polypropylene fleece exterior with a bitumen/glass fibre working surface and mineral glass facing on the underside. This high-performance product is part of Unilin's comprehensive range of 25mm roof boards designed for flat roof applications.

25mm Unilin FR-BGM Flat Roof Board was previously known as 25mm Xtratherm FR-BGM.

Product Specification

Brand: Unilin / Xtratherm®

Model: 25mm FR/BGM

Thickness: 25mm, 50mm, 60mm, 70mm, 80mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm

Length: 1200mm

Width: 600mm

Board Coverage: 0.72m2

Pack Coverage: 12.96m2

Pack Quantity: 18

R-Value: 1.04m2K/W

Thermal Conductivity: 0.024W/mK

Compressive Strength: 150kPa

Dimensions: 1,200mm x 600mm x 25mm

Colour: Yellowish

Density: 32kg/m3

Material: Polyisocyanurate (PIR Insulation)

Profile: Square Edge

Inner facing: Mineral Glass

Outer facing: Bitumen/glass fibre

Shipping method: Articulated Vehicle ǀ Courier

Applications: Flat Roof

BBA Certified: Yes (No. 11/4878)

ETA Notification: Yes

Features: Thermally efficient flat roof board

About

The 25mm Unilin FR-BGM is a premium component within Unilin's high-performance flat roof boards range, delivering substantial advantages for flat roof construction:

1. Superior thermal efficiency: This 25mm board delivers outstanding insulation performance, maintaining consistent internal temperatures and reducing energy consumption.
2. Bituminous roofing system compatibility: Engineered for seamless integration with bituminous-based roofing systems, ensuring straightforward installation and reliable performance.
3. Durable fleece-finished facings: The polypropylene fleece-finished bitumen/glass fibre working surface enhances durability and extends the service life of your flat roof system.
4. Environmental Product Declaration: The product holds EPD certification from the IGBC (International Green Building Council), demonstrating environmental responsibility. For additional technical information, contact our support team.

Key Points:

1. Delivers exceptional thermal performance.
2. Incorporates fleece-finished bitumen/glass fibre facings.
3. FR-BGM allows direct application of torch-on felt to the insulation surface.
4. Works effectively with numerous bituminous-based roofing systems.

Roof Design

The 25mm Unilin Insulation Boards are compatible with a comprehensive range of bitumen-based waterproofing systems. These typically incorporate a BS EN 13707:2013 type 3G perforated base layer or proprietary roof waterproofing solutions. Installation should position the fleece side upwards, though full bonding remains an alternative approach. Consult BS 8217 guidelines for moisture and condensation management in reinforced bitumen membrane roofing applications.

Falls

Flat roof design must incorporate adequate fall to prevent water pooling and ensure proper drainage.

Roof Loading

The 25mm Unilin FR/BGM boards suit roof decks with minimal foot traffic and low maintenance requirements. Where regular pedestrian access is required, install protective walkways. After roof completion, lay protective boarding if additional site work is anticipated, safeguarding the roofing system's integrity.

Roof Finish

Built-up roofing systems require finishing with an appropriate reflective layer such as chippings. Consult your system manufacturer for specific recommendations.

Fire Performance

Fire ratings, when tested to EN 13501-5 and BS 476 Part 3 'External Fire Exposure Roof Test', depend on the waterproofing system selected.

Vapour Control Layer

Prime decks before applying hot bitumen for vapour control layer bonding. Reference BS 8217 during application. Extend the VCL beyond the insulation and seal at the parapet wall.

Info

Explore our Xtratherm range and filter by thickness or coverage using the left-hand navigation. For project suitability advice or quantity discount quotations, contact us by phone on +4402038839057, email sales@insulationbee, or use Live Chat for the lowest UK Insulation prices.