Marmox Fireboard – Fireproof External Wall Insulation (EWI) Boards for Internal & External Use
Marmox Fireboard is a high-performance external wall insulation (EWI) board designed for use with masonry, timber, and steel frame constructions. These versatile boards offer exceptional fire protection, thermal insulation, and acoustic insulation for both internal walls and ceilings as well as external facades.
Fireproof & Weatherproof Insulation Board
Made from durable mineral wool, Marmox Fireboards are rated A1 non-combustible, providing top-tier fire safety in construction. The boards also act as a weatherproof barrier, remaining structurally stable and effective even under prolonged exposure to moisture. Whether used indoors or outdoors, Marmox Fireboards will not degrade — no matter how wet they get.
Superior Acoustic & Thermal Performance
These boards are engineered for sound absorption and sound decoupling, making them ideal for applications where noise reduction is critical. Combined with their excellent thermal insulation properties, they contribute to a more energy-efficient and quiet building environment.
Ready-to-Finish Surface for Renders and Plasters
Marmox Fireboards feature our exclusive Marmox honeycomb surface coating — a tried and tested system that has proven successful on our Multiboards. This unique texture provides optimal adhesion for plaster or external renders, making it easy to complete your finishing work with confidence.
Key Benefits of Marmox Fireboard
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✅ A1 non-combustible fire rating (EN 13501-1)
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✅ Effective acoustic insulation
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✅ High-performance thermal insulation
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✅ Lightweight and easy to handle
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✅ Suitable for render or plaster finishes
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✅ For both internal and external use
Common Applications
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🔥 Fireproofing of metal, masonry, or timber structures
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🔧 A fire-resistant alternative to plasterboard for internal walls and ceilings
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🏠 Ideal for fireplace surrounds or chimney breast cladding
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🔇 Noise reduction in multi-unit dwellings or commercial buildings
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🧱 Thermal bridging reduction for inverted roofs and upstands
Optimized for:
Fireproof insulation boards, external wall insulation systems, A1-rated render boards, non-combustible ceiling panels, weatherproof mineral wool boards, thermal and acoustic insulation panels
