Vapour Panel Knauf - REG 12.5 900 1800 SE (80)

Vapour Panel Knauf – REG 12.5mm 900 x 1800 SE (80) is a vapour-resistant plasterboard designed to help control moisture vapour in internal wall and ceiling systems. Manufactured by Knauf, this specialist board incorporates an integrated vapour control layer to reduce the risk of interstitial condensation, supporting the long-term performance and durability of internal building elements.

The board features a gypsum core bonded to a vapour-resistant lining that limits vapour diffusion when correctly installed. With a 12.5mm thickness and square edge (SE) profile, it provides a stable surface for traditional joint finishing. The smaller 900 x 1800mm format offers improved handling and manoeuvrability on site, making it ideal for refurbishment work and confined spaces. Available individually or in packs of 80 boards, it provides flexibility for projects of all sizes.

Key Features

• Vapour-resistant plasterboard with integrated vapour control layer

• Helps reduce moisture vapour transmission and condensation risk

• 12.5mm thickness for strength and stability

• Square edge (SE) for conventional joint finishing

• 900 x 1800mm board size for easier handling

• Available as single boards or in 80-board packs

Typical Applications

• External wall linings

• Insulated wall and ceiling systems

• Residential and commercial buildings

• Refurbishment projects and restricted-access areas

• Areas requiring effective vapour control behind plasterboard

Performance & Workability

• Designed to control vapour diffusion when installed as part of a complete system

• Easy to cut, handle, and fix using standard drylining tools

• Compatible with timber and metal stud frameworks

• Provides a smooth surface ready for jointing and decoration

• Helps protect insulation and building fabric from moisture damage

Technical Specification

• Product Type: Vapour-Resistant Plasterboard

• Brand: Knauf

• Core: Gypsum with Integrated Vapour Control Layer

• Edge Type: Square Edge (SE)

• Thickness: 12.5mm

• Width: 900mm

• Length: 1800mm

• Pack Size: 80 Boards (also sold individually)

• Application: Internal Walls and Ceilings

Why Choose Vapour Panel Knauf – REG 12.5mm 900 x 1800 SE?

Vapour Panel Knauf REG combines effective vapour control with a more manageable board size, making it ideal for refurbishment and confined-space installations. With reliable performance and flexible purchasing options, it supports durable, compliant, and high-quality internal finishes across residential and commercial projects.