AQUAPANEL® Cement Board Indoor is a solid, durable tile backing board for interior use. It is made of aggregated Portland cement with coated glass fibre mesh embedded in back and front surfaces. The ends are cut square and edges are reinforced for extra strength (the EasyEdge®). The panel is 100% water-resistant and resistant to mould and mildew. It is non-combustible and has low installation cost


AQUAPANEL® Cement Board Indoor is used for construction of indoor walls and ceilings. Here, it serves as a substrate for tiles or various fillings. European technical approval ETA-07/0173 has been issued for AQUAPANEL® Cement Board Indoor. The panel is also certified according to the criteria of the Institute for Building Biology in Rosenheim, Germany.

Handling and installation

AQUAPANEL® Cement Board Indoor is horizontally attached to a vertical stud frame. Depending on requirements it is possible to use single or double-layer planking or a combination with other Knauf construction boards. In the wall area, joints are formed using the AQUAPANEL® Joint Adhesive. In the ceiling areas joints are formed using AQUAPANEL® Joint Filler – grey and embedded AQUAPANEL® Tape. All necessary accessories are available in the AQUAPANEL® accessory range. Installation time – wall: approx. 12 min/m2 (including screws and joint adhesive). Installation time – ceiling: approx. 18 min/m2 (including screws, joint tape and joint filler). Profile spacing: Ceiling – furring channel max. 300 (312,5) or 450 Please refer to the installation recommendations

Physical properties

Length (mm) 1200/2400/1250/2500 900/2000/2400/2500/2800/3000
Width (mm) 900 1200
Thickness (mm) 12.5
Min. bending radius for 900/1200 mm wide board 3
Min. bending radius for 300 mm wide strip  1
Weight (kg/m2 ) approx. 15
Dry bulk density (kg/m3 ) according to EN 12647 approx. 1050
Bending strength (MPa) according to EN 12647 8.75
pH-value 12
Building material class according to EN 13501 A1 non-combustible 


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