Xtratherm FR-MG is a mineral-coated glass-faced board. Xtratherm XT/FR MG boards should be laid over the vapour control layer in a break-bonded pattern. The long edges of the boards should be laid at right angles to the direction of the substrate and the deck must fully support all edges. The XT/FR MG insulation boards are secured by approved mechanical fixings or sufficiently bonded. The requirement for a separate water vapour control layer should be assessed in accordance with National Regulations.

• High Thermal Performance
• Suitable for full bonding with approved adhesive systems
• Compatible with adhesively bonded single-ply roofing membranes laid on mechanically fixed boards,
• 16-20 Suretwist fixings are needed per 1200x2400mm board for mechanical fixings.

• Thickness: 40mm
• Width: 600mm
• Length: 1200mm
• Density: 30kg/m3
• Weight/m2: 3.6kg
• Weight: 7.78kg
• Thermal Conductivity: 0.025W/mK
• R-Value: 4.8m2K/W
• Compressive Strength: 150kPa

Application:

• Roof decks that are subject to maintenance traffic; and walk-ways should be provided on roofs requiring regular pedestrian access. When the roof is complete, protective boarding should be laid if additional site work is to be carried out.
• Below most single ply fully adhered and mechanically fixed roof membrane systems or loose-laid ballasted roofing systems

Certification:

• Xtratherm Flat Roof Board FR-MG is manufactured under an ISO9001 assured quality system.
• FR-MG Board is CFC/HCFC free with zero ozone depletion potential and a Global Warming Potential of less than 0.01.
• The fire rating when tested to BS 476 Part 3: 1968 External Fire Exposure Roof Test will be dependent upon the waterproofing system specified.