12.5mm Knauf Aquapanel Interior Cement Board delivers exceptional durability and water resistance with its glass fibre-reinforced composition. This lightweight cement tile backer board is purpose-built for interior wet and humid environments, actively preventing mold and mildew formation.

Product specification

• Brand: Knauf®
• Model: 12.5mm AQUAPANEL Indoor
• Weight: 23.76kg
• Dimensions: 2,400mm x 900mm x 12.50mm
• Length: 2400mm
• Material: Fibre-Cement
• Profile: Render Carrier Board
• Thickness: 12.5mm
• Width: 900mm
• Fire Reaction: Class A1 Non Combustible
• Coverage: 2.16m2
• Fire performance: Class A1
• Finish: Smooth
• Durability: Minimum 30 years
• Applications: Drywall for wet areas
• Type: tough impact and water resistant glass fibre reinforced cement tile backer board
• Fixing method: Self Drilling Fixings
• Features: Aquapanel Interior Cement Render Board
• Manufacturer: Knauf AQUAPANEL®

This 12.5mm tile backer board excels in bathrooms, shower rooms, and wet rooms where moisture poses a constant challenge. Unlike traditional backing materials, Knauf Aquapanel Interior maintains structural integrity even when fully saturated, preventing the costly damage and deterioration that often necessitates complete substrate replacement. The pre-keyed surface accommodates tiles up to 50 kg/m² immediately upon installation, whilst screws enable straightforward fixing without specialist equipment.

Benefits

1. BBA certified (certificate number 09 / 4633)
2. Simple score and snap technique
3. Does not contain MgO and is NHBC, LABC and Premier Guarantee approved
4. A1 fire-rated in accordance with EN 13501-1

Application

12.5mm Knauf AQUAPANEL Indoor Cement Board provides a solid, moisture-resistant foundation capable of withstanding demanding environmental conditions including wind, rain, and snow exposure. When taped and jointed, the board can remain unfinished for up to six months, enabling rapid building envelope closure and maximising project efficiency through flexible scheduling opportunities.

Coverage

1. 900 x 1200 x 12.5mm or 1.08m² per board
2. 900 x 2400 x 12.5mm or 2.16m² per board
3. Fixings on 600mm centered supporting framework, with a maximum of 250mm centers: 15 screws per m²

Tile Failure - Why does it happen?

Tile failure represents a significant expense when conventional substrates fail, requiring replacement of both tiles and underlying materials. Knauf Aquapanel Interior minimises this risk—when tile or grout failure occurs, only localised repairs are typically needed since the board resists water penetration and damage.

Tile failure occurs when moisture penetrates the substrate due to:

1. Water spills during plumbing installation
2. Unseen leaks in pipework within the wall
3. High-pressure water from power showers damaging grout and allowing water seepage
4. Condensation along pipework within the wall soaking into the substrate

Installation

More Information on 12.5mm Knauf Aquapanel Indoor Cement Board

• Manufaturer Link: 12.5mm Knauf Aquapanel
• Browse our complete Knauf Insulation range and refine by thickness or coverage using the filters on the left. For project-specific advice or bulk pricing enquiries, contact us via phone on +4402038839057, email sales@insulationbee, or Live Chat - Lowest UK Knauf Aquapanel Insulation Prices.