The 100mm FR-BGM Flat Roof Insulation Board from Unilin delivers superior thermal performance with a polypropylene fleece exterior layer combined with a bitumen/glass fibre working surface. A mineral glass facing on the underside completes the construction. This product represents part of Unilin's comprehensive range of high-performance 100mm flat roof boards, providing integrated solutions for diverse flat roof applications.
100mm Unilin FR-BGM Flat Roof Board was previously known as 100mm Xtratherm FR-BGM.
Brand: Unilin / Xtratherm®
Model: 100mm 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: 3.75m2K/W
Thermal Conductivity: 0.024W/mK
Compressive Strength: 150kPa
Dimensions: 1,200mm x 600mm x 100mm
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
The 100mm Unilin FR-BGM forms a key element within Unilin's extensive portfolio of high-performance flat roof boards, delivering multiple advantages for flat roof construction:
The 100mm Unilin Insulation Boards are engineered for compatibility with an extensive range of bitumen-based waterproofing systems. These installations typically employ a BS EN 13707:2013 type 3G perforated base layer or proprietary roof waterproofing solutions. Position the fleece side facing upwards during installation, or alternatively apply full bonding. For moisture and condensation management guidance, consult BS 8217 specifications for reinforced bitumen membranes in roofing applications.
Flat roof design must incorporate adequate fall to prevent water pooling and ensure proper drainage.
The 100mm Unilin FR/BGM boards suit roof decks with minimal foot traffic and low maintenance requirements. Where regular pedestrian access is required, install protective walkways on the roof surface. Following roof construction completion, lay protective boarding if additional site work is anticipated. This protects the roofing system integrity.
Built-up roofing systems require finishing with a suitable reflective layer such as chippings. Consult the system manufacturer for specific recommendations.
Fire rating, when assessed to EN 13501-5 and BS 476 Part 3 'External Fire Exposure Roof Test', depends on the specified waterproofing system.
Prime decks before applying hot bitumen for vapour control layer bonding. Refer to BS 8217 for vapour control layer application procedures. Extend the VCL past the insulation and seal with the parapet wall.
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