Polyfoam® ECO Roofboard - Knauf Insulation

October 2011
Polyfoam ® ECO Roofboard
For flat roofs
Description
Polyfoam ECO Roofboards are available in two grades - Extra and Super. They are rigid extruded
polystyrene boards with Zero Ozone Depletion Potential (ODP) and a Global Warming Potential
(GWP) of less than five. They are lightweight square edged or lap jointed boards that have a high
compressive strength.
Application
Polyfoam ECO Roofboards are used for the thermal insulation of flat roofs and can be used:
• in a warm roof construction below single ply membranes
• in a protected membrane roof below ballast or paving slabs (1)
• as the insulation layer in a green/garden roof
• under concrete for a roof top car park
(1) See also the separate Knauf Insulation datasheet on the Polyfoam Slimline membrane
(Ref: PD136210). When used in conjunction with the Polyfoam Slimline membrane as part of
the Polyfoam Slimline system, this solution offers industry leading thermal performance and weight
reduction in protected membrane roofing systems.
Standards
Polyfoam ECO Roofboards are manufactured in accordance with BS EN 13164:2008, EN
16001:2009 Energy Management Systems, OHSAS 18001:2007 Occupational Health and
Safety Management Systems, ISO 14001:2004 Environmental Management Systems, and ISO
9001:2008 Quality Management Systems, as certified by Bureau Veritas.
Performance
Thermal
The thermal conductivity of Polyfoam ECO Roofboard
is 0.033 to 0.036W/mK depending on the product
and thickness.
Benefits
• Excellent thermal performance
• 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
• As part of the Polyfoam Slimline System:
– Improves the thermal performance of
protected membrane flat roofs
– Enables thinner insulation and less ballast to
be used with no loss of thermal performance
– Produces a thermally efficient and
lightweight roof

Polyfoam ® ECO Roofboard
Durability
The continuous service temperature limits of Polyfoam ECO Roofboard are -20 to +70º C.
Environmental
Polyfoam ECO Roofboards are manufactured with a GWP

Polyfoam ® ECO Roofboard
Thickness
Thermal
conductivity Thermal resistance Length Width Compressive strength
(mm) (W/mK) (m 2 K/W) (mm) (mm) (kPa)
Polyfoam ECO Roofboard Extra
160 LJ 0.035 4.55 1250 600 300
140 LJ 0.035 4.00 1250 600 300
120 LJ 0.035 3.40 1250 600 300
110 LJ 0.035 3.10 1250 600 300
80 SE 0.035 2.25 1250 600 300
70 SE 0.035 2.00 1250 600 300
60 SE 0.035 1.70 1250 600 300
55 SE 0.035 1.55 1250 600 300
50 SE 0.033 1.50 1250 600 300
Polyfoam ECO Roofboard Super
100 LJ 0.036 2.75 1250 600 500
80 LJ 0.036 2.20 1250 600 500
60 LJ 0.034 1.75 1250 600 500
50 LJ 0.034 1.45 1250 600 500
All dimensions are nominal. L J = Lap Jointed, SE = Square Edged.
Knauf Insulation Ltd
PO Box 10
Stafford Road
St Helens
Merseyside
WA10 3NS
Customer Service (sales)
Tel: 0844 800 0135
Technical Advisory Centre
Tel: 01744 766 666
Literature
Tel: 08700 668 660
www.knaufinsulation.co.uk
Ref: GD022211
For more information please visit
www.knaufinsulation.co.uk
All rights reserved, including those of photomechanical reproduction and storage in electronic media. Commercial use of the processes and work activities presented in this document is not permitted. Extreme caution
was observed when putting together the information, texts and illustrations in this document. Nevertheless, errors cannot quite be ruled out. The publisher and editors cannot assume legal responsibility or any liability
whatever for incorrect information and the consequences thereof. The publisher and editors will be grateful for improvement suggestions and details of errors pointed out.