Siniat PermaRock Outdoor

Product Code



PERMAROCK® Cement Board is made of Portland cement and aggregate core, with coated glass fibre mesh embedded in back and front surfaces. Ends are square cut and both edges are reinforced and finished smoothly. It is a solid, engineered, inorganic wall lining and 100% water resistant offering a solid and durable substrate for tiles or render style finishing systems in exterior interior water intensive areas.

The Knauf PERMAROCK Cement Board Outdoor is an extremely durable building material, providing a solid and dry foundation that can withstand harsh climates including high winds, rain and snow. It can be used as a substrate for ventilated exterior walls and also for directly applied systems using water-managed design principles. PERMAROCK Cement Board Outdoor is the ideal render or tile substrate for external walls and ceilings in commercial, residential and industrial applications. It is also perfect when finished with decorative coverings or paint. PERMAROCK is the perfect material for use in replacing facades or renovating existing buildings as the lightweight nature of the system means that additional reinforcement of the primary structure is not required.


  • Extreme weather resistance
  • Board can be curved and non-combustible
  • Safe and hygienic material
Specialty Description Thickness (mm) Width (mm) Length (mm) Weight (kg/m2)
PERMAROCK® Outdoor 13 1200 3000 16

*Non-stock item for this location – lead times and minimum order quantities apply.

Weights indicated are nominal.
Special sizes and other edge types available, minimum order quantity and lead times apply – please contact us with your requirements.

Knauf Product Catalogue Download
Knauf Blueprint Technical Manual Download
Permarock Brochure Download
Knauf SDS PERMAROCK Indoor & Outdoor Download