Defending Against Wildfires: MagMatrix MgO Exterior Sheathing
- JP Group MagMatrix Brand
- 1 minute ago
- 3 min read
In regions prone to wildfires, a building's "envelope" is its first line of defense. Standard materials like OSB (Oriented Strand Board) or plywood sheathing can act as fuel once the exterior siding is breached. MagMatrix MgO Exterior Sheathing is specifically engineered to serve as a non-combustible shield, preventing fire from entering the wall cavity.
Why MagMatrix is the Gold Standard for WUI Zones with the BMSC 517 New Sulfate MGO Exterior Sheathing
When designing for the Wildland-Urban Interface (WUI), you need more than just "fire-resistant" materials—you need non-combustible materials. Here is how MagMatrix performs under extreme heat:
Zero Flame Spread and Smoke Development: MagMatrix boards are ASTM E136 certified. In a wildfire scenario where radiant heat can ignite traditional sheathing behind the siding, MgO board remains inert. It will not ignite, nor will it produce the toxic "black smoke" that often causes more casualties than the fire itself.
Thermal Insulation Properties: MgO board has low thermal conductivity. During a fire, it acts as a heat sink, slowing the transfer of temperature from the outside of the wall to the interior studs. This delays the "flashover" point, giving occupants more time to evacuate and firefighters a better chance to save the structure.
Resistance to Embers and Flying Brands: Wildfires often spread via wind-blown embers that lodge themselves in gaps in the siding. If the sheathing behind that siding is MagMatrix, the embers will burn out against a mineral surface rather than igniting the wooden frame of the house.
Comparison: MagMatrix vs. Traditional Wildfire Protection
Feature | MagMatrix MgO Sheathing | FRT Plywood (Fire Retardant Treated) | Gypsum Exterior Sheathing |
Combustibility | Non-Combustible | Combustible (but slow) | Non-Combustible |
Water Resistance | Excellent (Hydrophobic) | Poor (Chemicals can leach out) | Moderate (Paper face can rot) |
Structural Integrity | Very High | High | Low (Fragile) |
Chemical Safety | 100% Non-Toxic | Contains fire-retardant salts | Contains Crystalline Silica |
Recommended Specification for Wildfire Zones
For maximum protection in high-risk zones, we recommend the MagMatrix Perseverance Model (Structural Grade):
Thickness: 12mm (1/2") or 15mm (5/8") for structural sheathing.
Installation: Install directly over wood or steel studs. Seal all joints with a fire-rated sealant or intumescent tape.
Vapor Barrier: Use a high-quality weather-resistive barrier (WRB) over the MagMatrix. Since MagMatrix is breathable (10-15 perms), it allows the wall assembly to dry out, preventing rot while remaining fire-sealed.
Compliance & Certification
MagMatrix is tested to meet the most stringent international standards required for wildfire-prone areas:
ASTM E136: Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750°C (Non-combustibility).
ASTM E84: Class A Flame Spread and Smoke Development.
UL 263 / ASTM E119: Up to 4-hour fire-rated wall assemblies.
Conclusion
MagMatrix BMSC 517 New Sulfate MGO fire rated structural exterior wall sheathing panel is a high-performance, versatile and sustainable option for fireproofing and insulation in buildings at risk of wildfires. Its unique composition offers superior protection against flames, heat, and smoke while remaining environmentally friendly. It has been tested to meet the most stringent international standards, making it a reliable choice for building in wildfire-prone areas. With its easy installation process and long-lasting benefits, MagMatrix New sulfate mgo fire rated exterior wall sheathing is an innovative solution to protect your property and ensure the safety of its occupants. Invest in MagMatrix today for peace of mind and optimal fire protection. So whether you are constructing a new building or looking to upgrade the fire resistance of an existing structure, consider using MagMatrix for effective and sustainable fireproofing.
Sustainability and Environmental Impact
In addition to its fire-resistant properties, MagMatrix brand BMSC 517 new sulfate MGO board for exterior wall sheathing panel is also a sustainable choice for fireproofing. Made from recycled materials, it minimizes environmental impact while still providing top-notch protection against fires.
Furthermore, the use of MagMatrix new sulfate MGO fire rated structurally wall sheathing can contribute towards obtaining green building certifications such as LEED (Leadership in Energy and Environmental Design) due to its eco-friendly composition. This not only benefits the environment but also adds value to your property by showcasing your commitment to sustainability.