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Dow XENERGY extruded polystyrene
Description

XENERY SL from Dow is an extruded polystyrene insulation for roofing applications. 

XENERY SL has been formulated with the addition of infra-red 'blockers' or particles which are finely dispersed and incorporated into the extruded cell walls. The particles scatter and reflect heat radiation resulting in reduced heat transfer during winter to keep a building warm, as well as in summer to keep it cool.

Designed specifically for roofing applications, XENERGY SL offers declared thermal conductivity of 0.032 W/m.K in thicknesses of 130mm, 140mm, 180mm and 200mm compared to 0.036 W/m.K in the same thickness of ROOFMATE SL-A, resulting in an 11% improvement in insulation performance.

In addition to its function as a thermal insulation which helps to deliver Code for Sustainable Housing credits, XENERGY SL has a Global Warming Potential (GWP) of less than five.

The process of extruding foamed polystyrene results in a material with uniformly small, closed cells, a smooth ‘skin’ and an unrivalled set of properties which make it the choice of specifiers in a wide range of demanding insulation applications.

Key Features
  • Improved lambda values with up to 11% better insulation performance than other CO2 blown XPS foams 
  • Free of HBCD (bio persistent) fire retardants 
  • The proven features of STYROFOAM XPS — durability, reliability and strength 
  • Incorporates infra-red 'blockers' which improve thermal resistance by scattering and reflecting heat radiation 
  • Flame retarded, enhancing safety and protection on construction sites
  • Low thermal conductivity — minimising the board thickness needed to achieve a specific U-value, thus allowing the designer greater flexibility
  • High compressive strength — in load-bearing applications, the closed cell structure gives the foam greater rigidity and makes it highly resistant to compression
  • Low water absorption — natural resistance to rain, snow, frost and water vapour which makes it an exceptionally stable material, which retains its initial insulation performance and physical integrity in exposed conditions over the very long term. It was this unusual property that made the inverted warm flat roof concept possible, an idea pioneered by Dow
  • User-friendliness — easily worked with normal hand tools
  • Hygiene — boards have low susceptibility to rot, meaning mould or fungal growth is minimised. They are clean, odourless and free from irritating dust.
Scope of Use
  • Designed specifically for roofing applications
Other Performance Attributes

Designed specifically for roofing applications, XENERGY SL offers declared thermal conductivity of 0.032 W/m.K in thicknesses of 130mm, 140mm, 180mm and 200mm compared to 0.036 W/m.K in the same thickness of ROOFMATE SL-A, resulting in an 11% improvement in insulation performance.

In addition to its function as a thermal insulation which helps to deliver Code for Sustainable Housing credits, XENERGY SL has a Global Warming Potential (GWP) of less than five.

Documents
Data Sheet
Brochure

New Zealand's largest marketer and distributor of ceilings and interior wall systems, thermal and acoustic insulation, and passive fire protection products.

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