Gyproc WallBoard DUPLEX Tapered Edge - 2400mm x 1200mm x 12.5mm

Name: Gyproc WallBoard DUPLEX Tapered Edge - 2400mm x 1200mm x 12.5mm
Brand: Gyproc
SKU: k5525mblhg
Price: 31.87 GBP
Availability: InStock

Gyproc WallBoard DUPLEX is a high-quality plasterboard featuring an aerated gypsum core faced with...

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British Gypsum Gyproc WallBoard DUPLEX Tapered Edge 2400mm x 1200mm x 12.5mm

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Product Information

Full details

Gyproc WallBoard DUPLEX is designed for contractors and homeowners looking to streamline their internal wall and ceiling projects by combining standard plasterboard with a built-in vapour control layer. This dual-function board is ideal for areas where condensation management is critical, such as external walls or ceilings in humid environments, though it requires precise handling to ensure the metallised film remains undamaged during installation. It offers a robust, fire-resistant solution that simplifies construction by reducing the need for separate vapour barrier membranes.

All features

Brand	Gyproc

Extended Product Information

FAQs

Which side should face the room?

The ivory paper side should face the room; the metallised film side must face the wall cavity or insulation.

Can I use this in a bathroom?

While it provides vapour control, ensure you use the appropriate moisture-resistant board if the area is subject to high levels of direct water or extreme humidity.

Is this fire resistant?

Yes, the gypsum core provides inherent fire resistance properties suitable for internal lining applications.

Do I need to seal the joints to keep the vapour barrier working?

Yes, sealing the joints with appropriate tape and compound is essential for the continuous performance of the vapour control layer.

Is the board recyclable?

Yes, Gyproc WallBoard DUPLEX is fully recyclable at designated construction waste facilities.

Troubleshooting

The metallised film is torn during transport

Apply a high-quality foil vapour-control tape over the tear, ensuring a tight seal to restore the vapour resistance.

Joints are cracking after installation

Ensure the stud framework is rigid and the boards are fixed at correct centres; use appropriate reinforcement tape for the joints.

Pros and Cons

Pros

Reduces labor time by combining two steps into one installation
Effective at preventing interstitial condensation and mould growth
Provides a consistent vapour resistance across the entire surface area
Compatible with standard taping and jointing compounds

Cons

Metallised film can be easily torn if handled roughly
Requires careful planning to ensure the film side faces the correct direction
More expensive than standard, non-vapour-check plasterboard

Setup, Compatibility & Care

To install, ensure your timber or metal stud framework is plumb and dry. Fix the boards with the ivory face outward and the metallised film facing the insulation or cavity. Use standard drywall screws, ensuring they are driven flush without breaking the paper surface. When jointing, use high-quality joint filler and tape to ensure the vapour control layer is effectively sealed at the seams. Keep the boards stored flat in a cool, dry area to prevent the core from absorbing moisture or the metallised film from wrinkling. If the film is punctured during installation, repair the damage with a suitable vapour-tight foil tape to maintain performance integrity.