Fixing and buying guide

Who needs this product and where to use it

This moisture-resistant plasterboard is essential in any internal space where sustained humidity or water splash is likely. Standard plasterboard will deteriorate in these conditions, leading to mould growth, delamination and structural failure. Gtec Siniat Moisture Board is specifically engineered for kitchens with steam from cooking, bathrooms with shower spray and steam, utility rooms with washing machines and tumble dryers, and any other areas subject to regular moisture exposure. It meets Type H2 classification to EN 520, the UK and European standard for moisture-resistant plasterboard.

Sizing and coverage

Each sheet measures 2400mm long by 1200mm wide by 15mm thick. This size is standard for UK stud framing at 600mm centres, allowing efficient coverage with minimal waste. The 15mm thickness provides good fire and acoustic performance alongside moisture resistance. With 50 sheets per pack, you have 144 square metres of board coverage, suitable for substantial projects such as multiple bathrooms or a full kitchen and utility room renovation.

• Sheet dimensions: 2400 × 1200mm
• Thickness: 15mm
• Pack quantity: 50 sheets
• Total coverage per pack: 144 square metres

Pre-installation checks and compatibility

Before fixing, inspect all sheets for damage in transit and store them flat in a dry location. Ensure your stud framework is square, level and properly spaced at 600mm centres. Moisture-resistant plasterboard requires the same fixing methods as standard board but must be used in conjunction with proper ventilation and moisture control measures. Do not rely on this board alone to manage severe dampness; address the source of moisture through adequate extraction, ventilation and damp-proof membranes. Check that your jointing compounds, tapes and finishing products are also suitable for moisture-prone areas.

• Store flat and dry before installation
• Verify stud spacing at 600mm centres
• Ensure adequate room ventilation is in place
• Use moisture-rated jointing and finishing products
• Address moisture sources separately from board selection

Pack contents and ordering

This product is supplied as a single pack of 50 sheets. Calculate your total board requirement by measuring wall and ceiling areas in square metres, then divide by 2.88 (the area of one sheet) to determine how many sheets you need. Order in complete packs of 50; partial packs are not available. For projects requiring multiple packs, confirm delivery and handling arrangements with your merchant, as 50 sheets represent a substantial weight and volume.