Knauf Drywall Plasterboard - 12.5mm - Tapered Edge - 2700mm x 1200mm

Long-length moisture-resistant plasterboard sheet, measuring 2700 × 1200mm with a 12.5mm tapered e...

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BradfordsKnauf Moisture Panel Tapered Edge Plasterboard 2400 X 1200 X 12.5Mm Green/Light
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£19.20
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Materials Market Trading UK Ltd12.5Mm Knauf Moisture Panel Tapered Edge Plasterboard 2400Mm X 1200Mm Green
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Product Information

Full details

This guide is for builders, renovators, and DIY enthusiasts working in moisture-prone areas like kitchens, bathrooms, and utility rooms. The Knauf Drywall Plasterboard offers a long-length, moisture-resistant solution that enhances installation efficiency and provides a superior finish. A key consideration is its specific suitability for areas requiring moisture resistance, rather than general-purpose use. It features an aerated gypsum core with silicone additives for reduced water absorption, durable green liners for identification and strength, and a tapered edge for seamless jointing.

All features

Model Part Number68551
BrandKnauf Drywall

Extended Product Information

FAQs

Is this board suitable for a shower enclosure?

While this board is moisture-resistant and ideal for bathrooms, it is not designed for direct constant water immersion. It should be used as a substrate for appropriate waterproofing membranes in shower areas.

Can I paint directly onto this plasterboard?

After jointing and finishing, the surface is ready for direct decoration. Apply a suitable primer before painting for best results and durability.

What is the main advantage of the long board length?

The longer 2700mm length reduces or eliminates the need for horizontal joints in standard-height rooms, leading to faster installation and a cleaner, more uniform finish.

How does the tapered edge help?

The tapered edge creates a shallow recess at board joints, which is specifically designed to accommodate jointing tape and compound, allowing for a smooth, seamless finish once completed.

What are the green liners for?

The durable green liners provide strength and stability to the board. They also serve as a clear visual indicator on-site that the board is moisture-resistant.

Can this board be used in a commercial kitchen?

Yes, it is suitable for commercial kitchens where humidity is present, provided it is part of a wall system that meets relevant building codes and fire safety regulations.

Troubleshooting

Board is difficult to cut cleanly

Ensure you are using a sharp utility knife. Make a deep score on the front face and snap firmly. A second pass on the back may be needed for thicker boards.

Joints are not becoming seamless

Ensure the tapered edges are clear of debris. Use sufficient jointing compound and tape, applying multiple thin coats rather than one thick one. Allow adequate drying time between coats.

Deterioration in humid conditions

While moisture-resistant, the board is not waterproof. Ensure adequate room ventilation. Check that the board is correctly installed and finished, with no gaps in jointing or sealing.

Screws are tearing the paper liner

Adjust screw depth to embed the screw head just below the surface of the paper liner without breaking through to the gypsum core. Consider using a drywall screw gun with a depth setter.

Pros and Cons

Pros

  • Significantly reduces water absorption for use in wet areas.
  • Longer board size speeds up installation and reduces joints.
  • Tapered edge facilitates a smooth, professional finish.
  • Clear visual identification of moisture-resistant properties.
  • Contributes to building code compliance for fire and sound.

Cons

  • Not intended for areas with constant water immersion.
  • Requires specific jointing techniques for optimal performance.
  • Longer length may require assistance for handling and cutting.

Setup, Compatibility & Care

Setup:

  1. Cutting: Measure and mark the board. Use a sharp utility knife and a straight edge to score the front face, then snap the board along the score line. Cut the reverse side for a clean finish.
  2. Fixing: Fix boards to timber or metal framing using appropriate drywall screws. Ensure screws are adequately embedded without tearing the paper liner. Stagger joints where necessary.
  3. Jointing: Apply jointing tape over the tapered edges. Fill with jointing compound, feathering the edges. Allow to dry and apply subsequent coats as needed, sanding lightly between coats for a smooth finish.

Compatibility:

  • Compatible with standard drywall framing systems (timber and metal).
  • Suitable for use with most common jointing compounds and finishing plasters.
  • Ensure compatibility with any intended decorative finishes (paint, wallpaper).

Care:

  • Keep boards dry during storage and installation.
  • Clean finished surfaces with a damp cloth. Avoid abrasive cleaners.
  • For best long-term performance, ensure adequate ventilation in moisture-prone areas.

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