
08 May What Makes MgO Boards Fire-Resistant and How They Meet Fire Rating Standards
Table of Contents
Magnesium oxide boards, known for their impressive mgo board fire rating, are excellent at stopping fires. They are constructed from special materials that resist flames effectively. Tests indicate they have a Flame Spread Index (FSI) of zero, meaning fire does not spread on their surface. They are classified as Class A1 under EN 13501-1 standards, which confirms their high level of fire resistance. Cities like Dubai are increasingly utilizing MgO boards, with imports rising by 27% each year following the implementation of new fire regulations. These boards are safe and fulfill the fire rating requirements for various building projects.
Key Takeaways
Magnesium oxide boards do not burn or spread fire. This makes them great for keeping buildings safe from fires.
These boards can handle very high heat, up to 1200°C. This gives people more time to leave safely during a fire.
MgO boards make very little smoke and no bad gases. This helps keep the air cleaner and easier to see through in emergencies.
They follow strict fire safety rules like ASTM E136 and EN 13501-1. This proves they are safe to use in fire-rated areas.
Besides stopping fires, MgO boards are eco-friendly, resist mold, and are simple to install. This makes them a smart pick for building projects.
What Makes Magnesium Oxide Boards Fire-Resistant?
Composition and Non-Combustibility
Magnesium oxide boards are non-combustible, making them great for fire safety. They are made with magnesium oxide, which does not burn or spread fire. Even in extreme heat, these boards stay stable and protect buildings.
Property | Description |
---|---|
Fire Resistance | Non-combustible; handles high heat without burning or spreading fire. |
These boards can handle over 1000 degrees Celsius for four hours. They do not release harmful gases, keeping the air safer during emergencies.
High Heat Tolerance and Melting Point
Magnesium oxide boards can handle very high heat, up to 1200 degrees Celsius. Unlike other materials, they do not bend or lose shape in such conditions.
Property | Value |
---|---|
Maximum Temperature | Up to 1200 degrees Celsius |
Deformation Resistance | Stays strong under high heat |
This heat resistance slows fire spread, giving people more time to leave safely. It makes these boards a top choice for fire-resistant buildings.
Resistance to Smoke and Toxic Fumes
During fires, clear air and visibility are important for safety. Magnesium oxide boards make very little smoke, helping people see better to escape. They also stop harmful gases from being released, reducing health risks.
Low smoke helps people escape safely.
No harmful gases mean cleaner air during fires.
These features make magnesium oxide boards vital for fire-safe buildings. With their non-combustibility, heat resistance, and low smoke, they offer strong fire protection.
Understanding MgO Board Fire Rating Standards
Key Certifications and Classifications
Magnesium oxide boards pass strict tests for fire safety. These tests prove they work well in fire-rated uses. Two important standards are ASTM E136 and ASTM E84. ASTM E136 shows the boards do not burn. ASTM E84 checks how fire spreads on their surface. Boards tested under ASTM E84 often get a Class A rating, meaning they perform great against fire.
Certification | What It Tests | Fire Rating Type |
---|---|---|
ASTM E136 | Checks if materials are noncombustible. | Noncombustible |
ASTM E84 | Tests how fire spreads on surfaces. | Class A, B, C |
These tests show why magnesium oxide boards are trusted for fire-rated panels and insulation.
Compliance with International Fire Safety Codes
Magnesium oxide boards follow global fire safety rules. This makes them useful in many building projects worldwide. They meet EN 13501-1 standards, which label them as Class A1 noncombustible. In Canada, they meet CAN/ULC S114 and ULC S135 standards. This ensures they work well for fire-rated walls and outdoor uses.
Grade | What It’s For | Common Uses |
---|---|---|
G Grade | Indoor use, including wet areas | Walls and tile backer boards |
E Grade | Outdoor use | Siding and coated outdoor applications |
NC Grade | Noncombustible for Canada | Meets CAN/ULC S114 or ULC S135 |
S Grade | Strong structural use | SIP panels, walls, and floors |
FR Grade | Fire-resistant grade | Fireproof walls, floors, and ceilings |
These grades prove magnesium oxide boards meet top fire safety standards. They are great for homes and businesses.
Testing and Performance Metrics
Tests show magnesium oxide boards resist fire even in tough conditions. They stay fireproof in humid or changing weather. Unlike other materials, their fire safety does not weaken over time. This makes them perfect for fire-rated walls and outdoor uses.
Magnesium oxide boards stay fireproof in wet conditions.
Their fire safety stays strong for years.
These features make magnesium oxide boards a smart choice for safe buildings today.
Comparing MgO Boards to Other Fire-Resistant Construction Materials

Advantages Over Gypsum Boards
Magnesium oxide boards are safer than gypsum boards in fires. MgO boards don’t burn or catch fire easily. They can handle heat up to 1200°C without melting. This makes them perfect for fireproof walls. Gypsum boards, however, may weaken in extreme heat.
MgO boards make very little smoke during fires. This helps people see and escape safely. Unlike gypsum boards, they don’t release harmful gases. This reduces health risks during emergencies. These features make MgO boards a better choice for fireproof walls in homes and businesses.
Benefits Compared to Fiber Cement Boards
Fiber cement boards are also fire-resistant, but MgO boards are better. Both materials don’t burn, but MgO boards resist higher heat. They stay strong under extreme temperatures, giving more time to escape during fires.
Material | Fire Resistance Rating | Notes |
---|---|---|
MgO Board | Noncombustible | |
Fiber Cement Board | Noncombustible | Less effective in fire resistance than MgO boards. |
MgO boards also resist mold and mildew, lasting longer in wet areas. They are eco-friendly, making them a safer and greener choice for fireproof walls.
Unique Features of MgO Boards in Fire Safety
MgO boards have special fire-safe qualities. They are rated A1 or A2, meaning they don’t spread fire. They also make very little smoke and no harmful gases. Their materials won’t burn or release toxins, even in high heat.
Feature | Description |
---|---|
A1 Fire Rating | Non-combustible, no fuel for fires, minimal smoke or toxic fumes. |
High-Temperature Resistance | Handles high heat without burning or releasing harmful gases. |
Low Smoke and Toxic Gas Emission | Produces little smoke and no toxins, keeping people safe in fires. |
These features make MgO boards great for fireproof walls. Whether for homes or businesses, they offer top safety and reliability.
Applications of Fire-Resistant MgO Board in Construction
Use in Fire-Rated Walls and Ceilings
Magnesium oxide boards are great for fire-rated walls and ceilings. They are used in areas like stairwells and hallways to stop fires. EXACOR® MgO panels are made to be strong and fire-resistant. These panels can provide 1- or 2-hour fire protection, keeping people safe.
MgO boards work well in wet places too. Unlike other materials, they stay effective even with moisture. This makes them a good choice for fireproof insulation in homes and businesses.
Applications in Residential and Commercial Buildings
Magnesium oxide boards can be used in many ways. In kitchens, they stop fires from spreading, reducing damage. In bedrooms and living rooms, they keep fires contained to one area. Laundry rooms also benefit, as MgO boards stop dryer lint fires from spreading.
In businesses, these boards are perfect for fire-rated walls and ceilings. Hospitals and schools use them for extra safety. They resist fire, water, and mold, lasting a long time in busy areas.
Key Applications:
Fireproof floors in tall buildings.
Fire-rated coverings for outside walls.
Panels and floors in fire-risk areas.
Additional Benefits Beyond Fire Resistance
MgO boards do more than protect against fire. They resist water and mold, making them great for bathrooms and basements. They are light and easy to install, saving time and money. Plus, they are eco-friendly and recyclable, helping the environment.
Tip: Adding MgO boards to your projects boosts fire safety and durability while being eco-friendly.
These boards make little smoke and no harmful gases during fires. This helps people see and breathe better to escape safely. Their special features make them one of the best fire-resistant materials today.
Magnesium oxide boards are great at stopping fires. They don’t burn, handle high heat, and make little smoke. This makes them very safe during emergencies. They also meet important fire safety rules like ASTM E136 and EN 13501-1.
These boards are strong, eco-friendly, and useful in many ways. They work well for fireproof walls, ceilings, and insulation. With their top fire rating, they are a smart choice for safer and greener buildings.
FAQ
Why are MgO boards better than other fire-resistant materials?
MgO boards handle higher heat and make less smoke in fires. They don’t give off harmful gases, keeping the air safer. Unlike gypsum or fiber cement boards, MgO boards stay strong in extreme heat. This makes them great for fireproof walls and ceilings.
Can MgO boards be used in wet places?
Yes, MgO boards resist water and mold, so they work well in bathrooms, basements, and outside. They stay strong in wet areas and still provide fire safety.
Are MgO boards good for the environment?
MgO boards are recyclable and made from safe materials. They don’t release harmful chemicals when made or used, making them a green choice for building projects.
How do MgO boards meet fire safety rules?
MgO boards pass tests like ASTM E136 and EN 13501-1. These tests prove they don’t burn and resist fire well. Their Class A1 rating shows they are excellent for fireproof uses.
Do MgO boards need special tools to install?
No, MgO boards are easy to install with regular tools. They are lightweight, making them simple to handle and saving time during construction.