The 120mm 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 is part of Unilin's comprehensive range of high-performance 120mm flat roof boards, providing complete solutions for diverse flat roof applications.
120mm Unilin FR-BGM Flat Roof Board was previously known as 120mm Xtratherm FR-BGM.
Brand: Unilin / Xtratherm®
Model: 120mm 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: 2.16 m2
Pack Quantity: 3
R-Value: 5 m2K/W
Thermal Conductivity: 0.024W/mK
Compressive Strength: 150kPa
Dimensions: 1,200mm x 600mm x 120mm
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 120mm Unilin FR-BGM represents a key component within Unilin's extensive portfolio of high-performance flat roof boards, delivering substantial advantages for flat roof installations:
The 120mm Unilin Insulation Boards are engineered for compatibility with a broad spectrum of bitumen-based waterproofing systems. These typically incorporate a BS EN 13707:2013 type 3G perforated base layer or proprietary roof waterproofing solutions. During installation, position the fleece side upwards, or alternatively employ full bonding. For moisture and condensation management guidance, refer to 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 120mm Unilin FR/BGM boards are engineered for roof decks with minimal foot traffic and reduced maintenance requirements. Where regular pedestrian access is required, install protective walkways on the roof surface. Upon completion of roof construction, lay protective boarding if additional site work is anticipated, safeguarding the roofing system's integrity.
Built-up roofing systems require finishing with an appropriate reflective layer such as chippings. Consult the system manufacturer for specific recommendations.
Fire ratings, determined through EN 13501-5 and BS 476 Part 3 'External Fire Exposure Roof Test' assessment, depend on the waterproofing system specification selected.
Prime decks before applying hot bitumen for vapour control layer bonding. Consult BS 8217 for application procedures. Extend the VCL beyond the insulation and seal at the parapet wall.
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