Looking for a safe, reliable solution for protecting walls and structures around stoves, fireplaces, or other high-temperature zones? The Fermacell H₂O Heatproof Fireplace Board is your go to choice. Measuring 1200mm x 1000mm with a sturdy 12.5mm thickness, this board is specifically engineered to withstand intense heat while offering robust protection and a smooth finish.
Size: 1200 x 1000 x 12.5mm
The Fermacell H₂O Heatproof Fireplace Board is non combustible and classified as A1 fire-rated according to EN 13501-1, which means it will not contribute to fire at any stage, including high temperatures.
While the exact temperature tolerance can vary slightly depending on installation and use, Fermacell boards generally resist continuous exposure to temperatures up to around 1000°C (1832°F), making them highly suitable for use behind wood-burning stoves and fireplaces.
Key Features:
- Fire Resistant Performance: Manufactured with high-density calcium silicate and reinforced with fibres, this board provides excellent resistance to direct heat and is non-combustible—making it ideal for fireplace surrounds and stove enclosures.
- Moisture Resistant Construction: Unlike standard boards, Fermacell H₂O is designed to handle humidity and moisture without compromising its structural integrity. Perfect for homes where fireplaces may be exposed to fluctuating temperatures and damp environments.
- Easy to Work With: Lightweight yet durable, this board can be cut, drilled, and shaped with standard tools, making installation quick and hassle-free for both professionals and DIYers.
- Ready to Finish: Once installed, the board provides a smooth surface that’s ready to be painted, tiled, or plastered—giving you total design freedom for your fireplace or stove area.
Applications:
- Wood burning stove back panels
- Fireplace surrounds and recess linings
- Wall protection behind radiators or heating units
- Renovation of existing chimney breast areas
Whether you’re building new or upgrading an existing fireplace setup, the Fermacell H₂O Heatproof Board offers peace of mind and long-lasting performance in one reliable package.


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