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For use on parapets and upstands.


Insulation board, which pairs the excellent thermal performance of Ravatherm XPS X 300 SB with a 6 mm-thick fibre cement layer, resulting in a specialist insulation board for use on parapets and upstands. It has been designed to address the challenge of thermal bridging in flat roofs.

Features and benefits:

  • Excellent thermal insulation capability.
  • Waterproof; negligible moisture uptake.
  • Energy-saving.
  • Environmentally friendly.
  • Frost-resistant.
  • Resistant to high loads.
  • Simple installation.
  • Quick installation.
  • Does not slump or shrink.


For use on parapets and upstands.

General information

6 mm-thick fibre cement flat sheet


Extruded polystyrene (XPS) and fibre cement


600 x 1200 mm (w x l)

Uniclass 2015
Pr_25_71_63_29 Extruded polystyrene (XPS) boardsPrimary
Specification data - Extruded polystyrene (XPS) boards
Product Reference

Ravatherm XPS X UB300

Fire performance

Euroclass E (to EN 13501-1)

Compressive strength (minimum) at 10% compression

300 kPa (to EN 826)

Thermal conductivity (maximum)

0.03 W/mK (to EN 13164)


50 mm-thick insulation, with 6 mm-thick fibre cement flat sheet


Butt edge

Standard product features


Excellent thermal insulation capability.


6 mm-thick fibre cement flat sheet.


Extruded polystyrene (XPS) and fibre cement.


600 x 1200 mm (w x l).

Technical characteristics:

  • Maximum compressive creep after 50 years (<2% deformation under stress σC, to EN 1606):60 kPa.
  • Tensile strength (to EN 1607): 300 kPa.
  • Long-term water absorption by total immersion (to EN 12087): <1.5%.
  • Dimensional stability under specified temperature (70°C) and humidity conditions (90% rh) (to EN 1604): <5%.
  • Coefficient of linear thermal expansion (typical value): 0.07 mm/(m.K).
  • Temperature limits: -50/ +75°C.
  • Thickness tolerances (to EN 823): ±0.5 mm.
  • Width tolerances (to EN 822): ±3 mm.
  • Height tolerances (to EN 822): ±6 mm.

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