Fireproof Lightweight Interior Building Materials Magnesium Oxide Sheathing Panel

The MgO fireproof roofing sheathing is basically a structural set, mostly made of magnesium oxide boards, and it's used to protect roofs from fire. Usually, it's made by putting multiple layers of magnesium oxide boards together-they're joined and fixed in a specific way. Some might also come with the right sealing materials and connecting parts, just to make sure the whole structure is tight and stable. That way, it can cover the roof better and do its job of fireproofing and other protective stuff.

As for the MgO sheathing panel itself, it's a fireproof, lightweight material used inside buildings. Its main component is high-purity magnesium oxide (MgO), and it's reinforced with alkali-resistant glass fiber mesh. They also add things like magnesium sulfate or magnesium chloride (to act as binders), perlite, and plant fiber when making it. It's produced using advanced pressing and curing processes, and it's really good-it's A1-class non-combustible, not too heavy (density is between 0.95 and 1.1g/cm³), resists moisture and mold, and it's eco-friendly too-no asbestos, no formaldehyde, no VOCs.

It's designed for indoor use, and it's a pretty versatile sheathing option. You can use it for walls, ceilings, partitions, and even floor underlayment in houses, commercial buildings, and industrial buildings. It's structurally stable, easy to install, and it meets the standards for green buildings.

Advantages of Fireproof Lightweight Interior Building Materials Magnesium Oxide sheathing Panel

1. Unrivaled Fire Protection

Withstands extreme temperatures up to 1200°C without releasing toxic fumes, ensuring occupant safety during fires.

Absorbs massive heat during combustion, slowing down temperature rise and preventing fire spread.

Ideal for fire-rated partitions, ceilings, escape routes, elevator shafts, and stairwells in residential, commercial, and industrial buildings.

2. Lightweight Yet High Strength

30% lighter than gypsum boards and fiber cement boards, significantly reducing structural load and construction labor costs.

Flexural strength ≥8MPa, offering excellent impact resistance and durability for long-term use.

Easy to handle and install: A single worker can carry and install 4×8ft panels without heavy machinery.

3. All-Round Moisture & Mold Defense

Resists water absorption (water absorption rate ≤10%) and mold growth, making it suitable for high-humidity areas such as bathrooms, basements, kitchens, and coastal regions.

Maintains dimensional stability even in environments with 90% relative humidity; no warping, cracking, or decay.

4. Eco-Friendly & Healthy Living

Made from 100% natural mineral materials, free of asbestos, formaldehyde, heavy metals, and VOCs (volatile organic compounds), ensuring indoor air quality and occupant health.

100% recyclable at the end of its service life, aligning with green building standards and LEED certification requirements.

5. Versatile Applications & Easy Installation

Compatible with all standard framing systems (steel, wood, aluminum) and construction methods.

Can be cut, drilled, sawed, nailed, or glued using common construction tools, enabling quick and efficient installation.

Suitable for interior walls, ceilings, partition walls, floor underlayment, decorative panels, clean rooms, data centers, hospitals, schools, and hotels.