70mm Unilin FR-BGM Flat Roof Board

The 70mm 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 product represents part of Unilin's comprehensive range of high-performance 70mm flat roof boards, delivering complete solutions for diverse flat roof applications.

70mm Unilin FR-BGM Flat Roof Board was previously known as 70mm Xtratherm FR-BGM.

Product Specification

Brand: Unilin / Xtratherm®

Model: 70mm FR/BGM

Thickness: 25mm,30mm,40mm, 50mm, 60mm, 70mm, 80mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm

Length: 1200mm

Width: 600mm

Board Coverage: 0.72m2

Pack Coverage: 5.04 m2

Pack Quantity: 7

R-Value: 2.92m2K/W

Thermal Conductivity: 0.024W/mK

Compressive Strength: 150kPa

Dimensions: 1,200mm x 600mm x 70mm

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 70mm Unilin FR-BGM represents a key element within Unilin's broad selection of high-performance flat roof boards, delivering multiple advantages for flat roof construction:

1. Superior thermal efficiency: This 70mm board delivers outstanding insulation capabilities, maintaining consistent internal temperatures and reducing energy consumption.
2. Broad compatibility with bituminous roofing: Engineered for seamless integration with numerous bituminous roofing systems, simplifying installation and ensuring reliable performance.
3. Polypropylene fleece finished bitumen/glass fibre surfaces: The fleece-finished working surface enhances structural durability and provides extended service life for flat roof applications.
4. Environmental Product Declaration (EPD) accreditation: The 70mm Unilin FR-BGM Insulation Board holds EPD certification from the IGBC (International Green Building Council). Contact our technical team for comprehensive documentation.

Key Points:

1. Delivers exceptional thermal performance.
2. Features polypropylene fleece finished bitumen/glass fibre surfaces.
3. FR-BGM permits direct application of torch on felt roofing systems.
4. Works effectively with a comprehensive range of bituminous roofing systems.

Roof Design

The 70mm Unilin Insulation Boards are compatible with an extensive selection of bitumen-based waterproofing systems. These typically incorporate a BS EN 13707:2013 type 3G perforated base layer or proprietary waterproofing solutions. Installation should position the fleece side upward, though full bonding represents an alternative approach. For moisture and condensation management, refer to BS 8217 guidance on reinforced bitumen membranes in roofing.

Falls

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

Roof Loading

The 70mm Unilin FR/BGM boards suit roof decks with minimal foot traffic and low maintenance requirements. Where regular pedestrian access is needed, install protective walkways. Following roof completion, lay protective boarding if additional site work is anticipated, preserving the roofing system's integrity.

Roof Finish

Built-up roofing systems require finishing with an appropriate reflective covering such as chippings. Consult the 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 roof decks before applying hot bitumen for vapour control layer bonding. Refer to BS 8217 for application procedures. Extend the VCL beyond the insulation and seal at the parapet wall.

Info

Browse our Xtratherm stock and refine by thickness or coverage using the left-hand filters. For project suitability guidance or bulk quotations, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.