🔥 Fire Resistance
MagSheathing™ is ASTM-tested and achieves an A1 (non-combustible) fire rating — the highest classification available. Unlike wood-based OSB or drywall, MGO does not burn or contribute to flame spread. This makes it ideal for fire-rated wall and ceiling assemblies in residential and commercial construction, and it helps buildings meet stringent building code fire requirements without the need for additional treatments.
💧 Moisture & Water Resistance
MagSheathing™ maintains its structural integrity even when exposed to moisture. It will not warp, swell, delaminate, or deteriorate with normal moisture exposure — a critical advantage in Canada's climate, where rain, snow, and freeze-thaw cycles put enormous stress on building envelopes. It's the ideal choice for wet areas like bathrooms, kitchens, basements, and exterior sheathing.
🦠 Mold, Mildew & Fungus Resistance
MGO's antimicrobial composition makes it naturally resistant to mold, mildew, fungus, and rot. Where drywall and OSB are notorious for harboring mold once moisture gets in, MagSheathing™ provides a substrate that simply doesn't support biological growth. This is a major benefit for indoor air quality and long-term building health.
🌿 Environmentally Safe
MagSheathing™ is manufactured from natural magnesium sulfate, an abundant, earth-friendly compound. The production process is low-energy compared to Portland cement or gypsum manufacturing. The panels contain no formaldehyde, no fly ash, and no crystalline silica — meaning they're safe for the environment and for the people who install and live with them. They are also 100% recyclable at end of life.
💨 Indoor Air Quality & Health Safety
For homeowners and occupants with allergies, asthma, or chemical sensitivities, the choice of building materials matters enormously. MagSheathing™ does not off-gas harmful compounds and earns high marks for Indoor Air Quality (IAQ). It's a smart specification for schools, hospitals, childcare facilities, and any space where occupant health is a priority.
🐜 Termite & Pest Proof
Because MagSheathing™ is completely inorganic, it offers nothing as a food source for termites, carpenter ants, or other wood-boring insects. In regions where wood-destroying pests are a concern, MGO sheathing provides lasting protection without chemical treatments.
❄️ All-Climate Performance
MagSheathing™ has been freeze/thaw tested for over 36 months with no degradation in performance. Its heat and cold resistance means it can be installed year-round in any season — a significant practical advantage for Canadian construction schedules that can't afford weather delays.
🏗️ Builder-Friendly & Versatile
Despite its strength, MagSheathing™ is lightweight and easy to work with. It scores and cuts with standard tools, accepts screws and nails with excellent holding power, and can be finished with virtually any coating. It's compatible with wood frame, metal frame, and SIP assemblies — making it one of the most versatile sheathing products on the market.