Summary
Rigid extruded polystyrene (XPS) boards for inverted, blue and green roofs.
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Application
Thermal insulation of a wide variety of flat roofs including:
- Inverted roof below ballast or paving slabs;
- Green/ garden roof;
- Blue roof;
- Conventional warm roof.
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Description
A rigid extruded polystyrene (XPS) board for use in inverted and green roofs.
Features and benefits:
- Excellent thermal performance.
- 15 mm lap joint.
- High compressive strength.
- Highly resistant to water absorption.
- Able to resist repeated freeze/thaw cycles.
- Lightweight and easy to install.
- Tough and durable, not easily damaged.
- Dimensionally stable.
- Thermal performance of an inverted roof is improved when used in conjunction with Polyfoam Slimline Zero Membrane (specified separately).
- Has a low Global Warming Potential (GWP) of less than five and zero Ozone Depletion Potential (ODP).
Technical characteristics:
- Vapour resistivity: The XPS content of Polyfoam Roofboard Extra has a water vapour resistivity of 625 MNs/g·m when tested in accordance with EN 12086.
- Moisture absorption: 0.7% by volume when tested in accordance with EN 12087.
- Durability: Continuous service temperature limits up to +70ºC.
Typical project types:
- Mixed use.
- Domestic.
- Industrial.
- Commercial.
- Education.
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Product certifications
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Digital objects
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Color
Orange
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Material
High density extruded polystyrene (XPS)
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Shape
Rectangle
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Length
1250 mm
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Width
600 mm
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Height
50 mm, 70 mm, 100 mm, 130 mm, 160 mm, 180 mm, 200 mm, 220 mm, 230 mm, 245 mm
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Specification
Standard
To BS EN 13164.
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Third-party certification
BES 6001, UKCA, UKNI & CE Marked to BS EN 13164 and conforms with the Construction Products Regulation, BBA 17/5454, Environmental Product Declaration; BBA Certificate 17/5454.
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Fire performance
To BS EN 13501-1, Class F.
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Compressive strength (minimum) at 10% compression
300 kPa.
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Thermal conductivity (maximum)
0.033 W/m·K.
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Thickness
50 mm.
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Face size (length x width)
1250 x 600 mm.
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Edges
15 mm lap joint.
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Additional properties
Global warming potential
<5.
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MaximumOperatingTemperature
70°C.
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Thermal resistance
1.50 m²K/W.
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Water vapour resistance
625 MNs/g·m.
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Water absorption
0.60.
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Sustainability data
Contains Red List materials
No
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Country of material origin
United Kingdom
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Country of product manufacture
United Kingdom
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Material
High density extruded polystyrene (XPS)
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A1–A3 ('Production stage')
Embodied carbon as defined in BS EN 15804
Normalized unit
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Declared unit
121 kg CO₂ eq/m³
Certified
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Recyclability
100%
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