Magnesium oxide (MgO) fire-rated sheathing boards offer notable structural abilities, making them suitable for various building applications. Here are critical aspects of their structural performance:
High Compressive Strength
MgO boards typically exhibit excellent compressive strength, contributing to the stability of wall assemblies. They can be used for structural sheathing, supporting exterior walls, and improving rigidity.
Impact Resistance
MgO sheathing has high impact resistance, making it suitable for areas where walls may experience mechanical stress. It can withstand shear and tensile forces better than many traditional materials, such as gypsum or fiber cement.
Dimensional Stability
MgO boards are dimensionally stable and resist shrinkage, swelling, or warping under changing environmental conditions. This feature enhances their long-term structural reliability in buildings.
Fire Resistance
As fire-rated sheathing, MgO boards provide superior fire resistance while maintaining structural integrity during high temperatures. This makes them ideal for fire-rated wall assemblies and roof applications.
Moisture Resistance
MgO boards resist moisture, mold, and mildew, ensuring structural integrity in damp conditions. This moisture resistance helps prevent degradation or weakening, which is common in wood-based sheathing materials.
Lightweight yet Strong
Despite being relatively lightweight, MgO boards offer significant strength, reducing the overall dead load on the structure without compromising performance. This balance makes it easier to handle during installation without sacrificing durability.
Gypsum & wood & portland cement board Alternative
MagMatrix MgO Wall Panels represent a significant advancement in building materials, offering superior technical performance and value compared to traditional options like wood, gypsum, and Portland cement panels. MagMatrix's new sulfate MGO fire-rated exterior sheathing board is naturally fire resistant, provides industry-leading flexural strength and dimensional stability, and is highly durable, withstanding weather conditions better than the alternatives.
Shear Wall Capability
Magnesium oxide (MgO) boards can be effectively used in shear wall assemblies due to their strength, fire resistance, and durability. A shear wall is a structural component that resists lateral forces (such as wind and seismic activity) and prevents a building from swaying or shifting. MagMatrix BMSC 517 new sulfate MGO fire-rated exterior sheathing panel is designed for the exterior full load's shear walls with the fire-rated and noncombustible ability and at the same time to achieve 1- 2 hours fire ratings without the fire-rated gypsum layers to help you improve the shear wall design and capability and give more inches for the household room and improve and increase the installation efficiency.
Considerations for MgO Shear Wall Design:
Proper Fastening: Adequate screw spacing and proper fastening to the frame are essential to maximize the shear strength of MgO boards.
Moisture Protection: While MgO is moisture-resistant, additional waterproofing measures may be necessary in certain climates.
Testing and Code Compliance: Always ensure that MgO boards used in shear walls meet local building codes and have been tested for structural performance under shear loads.
MagMatrix's new sulfate MgO fire-rated sheathing boards provide structural solid support while delivering fire protection, moisture resistance, and long-term stability.
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