Glasroc® X is a high-performance board reinforced with glass-mat on both surfaces and finished with a UV resistant coating, providing outstanding performance in humid environments.
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Marketing description

This non-paper faced board is free from cellulose content and therefore has an inherent resistance to mould growth, is perfect for wet areas and high humidity environments.

Glasroc® X is an ideal substrate for ETHICS (External Thermal Insulation Composite Systems) or Direct Render application (also known as Direct Apply Systems). This high-performance board is designed for areas requiring high protection against water, especially for exterior applications.

The perfect solution for exterior ceilings, external walls, and facade cladding systems.

Key Facts

  • Glass fibre reinforced gypsum core contains water-repellent additives for moisture and mould resistance
  • Total water absorption of ≤5% (H1) and surface water absorption of <45g/m2 in accordance with BS EN 520
  • Glass mat surface improves exposure to outdoor conditions with no additional covering for up to 12 months
  • Acrylic finish on the surface is resistant to humidity and UV rays
  • Vapour diffusion of 18.2µ
  • 10/10 score (no mould) for mould resistance in accordance to ASTM D3273


Glasroc® X is designed for application as a wallcovering in high humidity areas (eg. swimming pool areas, showers, industrial kitchens). It is specially created for outdoor applications on roofs and facades as a sublayer before covering with a final upper layer, or as part of an indoor layer exposed to a protection chamber or air chamber.

As a wall lining to curved surfaces such as arches and columns with a minimum bending radius of 1.5m.

Board color



Articles information
Thickness (mm) Width (mm) Length (mm) Edge type
Thickness (mm)12.5 Width (mm)1200 Length (mm)2400 Edge typeRecessed edge
Thickness (mm)12.5 Width (mm)1200 Length (mm)2400 Edge typeSquare edge
Thickness (mm)12.5 Width (mm)1200 Length (mm)3000 Edge typeRecessed edge
Thickness (mm)12.5 Width (mm)1200 Length (mm)3000 Edge typeSquare edge


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