90mm Unilin FR-BGM Flat Roof Insulation Board

The 90mm FR-BGM Flat Roof Insulation Board from Unilin delivers superior thermal performance with a polypropylene fleece exterior, bitumen/glass fibre working surface, and mineral glass underside facing. This product forms part of Unilin's comprehensive range of high-performance 90mm flat roof boards, providing complete solutions for diverse flat roof applications.

90mm Unilin FR-BGM Flat Roof Board was previously known as 90mm Xtratherm FR-BGM.

Product Specification

Brand: Unilin / Xtratherm®

Model: 90mm 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: 3.60 m2

Pack Quantity: 5

R-Value: 2.92m2K/W

Thermal Conductivity: 0.024W/mK

Compressive Strength: 150kPa

Dimensions: 1,200mm x 600mm x 90mm

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 90mm Unilin FR-BGM represents a key component within Unilin's extensive portfolio of high-performance flat roof boards, delivering multiple advantages for flat roof construction:

1. Exceptional thermal efficiency: The 90mm FR-BGM provides outstanding insulation capabilities, supporting consistent internal temperature regulation throughout the building envelope.
2. Broad compatibility with bituminous roofing systems: This board integrates effectively with numerous bituminous roofing solutions, facilitating straightforward installation into both new and existing roof structures.
3. Durable polypropylene fleece and bitumen/glass fibre surfaces: The fleece-finished bitumen/glass fibre working surface enhances the overall durability and performance characteristics of the 90mm Flat Roof BGM, delivering a robust and dependable thermal solution.
4. Environmental Product Declaration (EPD) accreditation: The 90mm Unilin Flat Roof Insulation Board BGM holds EPD certification from the IGBC (International Green Building Council). Contact the technical support team for comprehensive technical documentation.

Key Points:

1. Delivers exceptional thermal performance.
2. Incorporates fleece-finished bitumen/glass fibre facings.
3. FR-BGM permits direct application of torch on felt systems onto the insulation surface.
4. Works with a comprehensive selection of bituminous roofing systems.

Roof Design

The 90mm Unilin Insulation Boards are engineered for compatibility with an extensive range of bitumen-based waterproofing solutions. These systems typically incorporate a BS EN 13707:2013 type 3G perforated base layer or proprietary waterproofing technology. Installation should position the fleece side facing upward, though full bonding represents an alternative approach. For condensation and moisture management guidance, refer to BS 8217 specifications for reinforced bitumen membranes in roofing applications.

Falls

Flat roof design must incorporate adequate fall to prevent water pooling on the surface.

Roof Loading

The 90mm Unilin FR/BGM boards suit roof decks with minimal foot traffic and low maintenance requirements. Where regular pedestrian access is needed, install designated walkways across the roof surface. Upon completion of roof construction, protective boarding should be applied if additional site works are anticipated, preserving the roofing system's integrity.

Roof Finish

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

Fire Performance

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

Vapour Control Layer

Prime roof decks before applying hot bitumen for vapour control layer bonding. Consult BS 8217 guidance for vapour control layer application. Extend the VCL beyond the insulation and seal against the parapet wall.

Info

Browse our Xtratherm range and filter by thickness or coverage using the left-hand navigation. For product suitability advice or bulk quotations, contact us by phone on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation Prices.