
22 Mar Proven Benefits of MgO Boards in Modular Subfloors
Table of Contents
Modular construction is changing how buildings are made and built, offering proven benefits such as faster construction times and cost savings, which are essential for addressing housing needs. For example:
The U.S. needs about 3.7 million more homes, says Freddie Mac.
Zillow thinks the housing shortage is closer to 4.5 million homes.
The modular construction market may grow from $94.84 billion in 2025 to $151.53 billion by 2032.
To meet these needs, strong and efficient materials are important. Magnesium Oxide (MgO) boards are a significant improvement for modular subfloors. They are fireproof and protect against water, making them great for modern building projects.
Key Takeaways
MgO boards do not burn and handle heat up to 1200°F. This makes buildings safer during fires.
These boards do not soak water or grow mold. They are great for wet places and last a long time.
MgO boards are strong and resist pests and water damage. This lowers repair costs over time.
They are eco-friendly, made from safe materials, and recyclable. This helps the environment and supports green building.
MgO boards are light, making them easy to install quickly. This saves time and money in modular building projects.
What Makes MgO Boards Special?
How They Are Made
MgO boards are made carefully to ensure they are strong. First, natural materials like magnesium oxide and magnesium sulfate are mixed into a thick paste. This paste is poured into molds to form the boards. Then, the boards are pressed under high pressure to make them tougher. After pressing, they are dried and hardened, either naturally or with heat. Finally, the boards are cut and smoothed for a clean finish.
Here’s a simple breakdown of what’s inside MgO boards:
Part | Amount | What It Does |
---|---|---|
Magnesium Oxide | ~50% | Gives the board its strength. |
Magnesium Sulfate | ~40% | Stops water problems and is good for nature. |
Other Fillers | ~10% | Includes things like wood fiber and fiberglass. |
This mix of materials makes MgO boards strong and eco-friendly.
Important Features of MgO Boards
Fireproof and Safe
MgO boards can handle heat up to 1200°F without burning or releasing harmful smoke. This makes them safer than many other materials.
Water and Mold Protection
MgO boards don’t warp or change shape in wet conditions. They also stop mold from growing, keeping your building safe and healthy.
Strong and Long-Lasting
These boards are very tough and can handle heavy impacts. For example, a 9mm board can take up to 14 MPa of pressure.
Pest and Termite Proof
Unlike wood, MgO boards don’t attract termites or pests. This means fewer repairs and less damage over time.
With these features, MgO boards are a great choice for modular subfloors. They are safe, strong, and last a long time.
Proven Benefits of MgO Boards in Modular Subfloors

Fire Resistance
MgO boards are great at resisting fire, making them safe. They don’t burn and can handle fire for up to four hours. The thickness and use of the board affect how long it resists fire. This helps keep buildings and people safe.
Here’s a simple look at their fire safety features:
Feature | Description |
---|---|
Non-combustibility | MgO boards don’t catch fire easily. |
Fire resistance ratings | Can resist fire for 1 to 4 hours, based on thickness. |
Certifications | Meet EN ISO 1716 and EN 13501 fire safety rules. |
ASTM E84 / UL 723 rating | Scored 0/0 for Flame Spread and Smoke Developed Index. |
These boards work well for fire-safe floors, walls, and ceilings. Their fireproof qualities make them perfect for places needing extra safety.
Moisture and Mold Protection
MgO boards are excellent at handling moisture. They stay strong even in wet or humid areas. Unlike other materials, they don’t bend or change shape when wet. This keeps buildings sturdy for a long time.
MgO boards stop mold and mildew because they are very alkaline.
They perform better than other materials in damp conditions.
Their water resistance means fewer repairs and longer-lasting use.
Using MgO boards protects floors from water damage and keeps spaces healthier.
Durability and Longevity
MgO boards are tough and last a long time. They stay strong even after years of use. This makes them a smart choice for construction projects.
Aspect | Findings |
---|---|
Fire Resistance | |
Structural Stability | Core stays strong even if the surface changes slightly. |
Moisture Resistance | Can be improved with coatings to absorb less water. |
Long-Term Monitoring | Tests show they last well in real building conditions. |
MgO boards are a smart, cost-saving option for modular subfloors. They handle wear and tear, giving you great value over time.
Environmental Sustainability
Choosing MgO boards for subfloors helps the environment. These boards are a greener option compared to traditional materials. Their production uses fewer resources, making them eco-friendly.
MgO boards are safe, non-toxic, and free of asbestos.
They can be recycled, cutting down on waste and saving resources.
Their long-lasting nature means fewer replacements, saving materials.
Using MgO boards can also earn certifications like LEED and BREEAM. These awards promote eco-friendly building, and MgO boards meet their standards.
Tip: Using MgO boards helps the planet and adds value to your project by meeting green building goals.
By using MgO boards, you lower your carbon footprint. Their eco-friendly benefits make them a great choice for builders who care about the planet.
Structural Integrity and Impact Resistance
MgO boards are strong and resist damage, making them dependable for subfloors. They are built to handle heavy loads and tough conditions. Their lightweight design improves safety during earthquakes by reducing force on buildings.
Certification | What It Proves |
---|---|
ASTM E136 | Noncombustible, meaning it won’t help fires spread. |
ASTM E84 | Class A fire rating, showing excellent fire resistance. |
ASTM E119 | Tested to stay strong under heat and fire. |
MgO boards are also very strong under pressure, helping buildings stay stable. They resist cracking even under stress, ensuring they last a long time.
These boards can handle extreme heat and heavy impacts without breaking. Whether for homes or businesses, MgO boards offer safety and durability you can trust.
Cost-Effectiveness and Value in Modular Construction
Lower Maintenance and Repair Costs
MgO boards help save money by needing fewer repairs. They are strong and resist fire, water, and pests, staying in good shape for years. Unlike other materials, they don’t bend, crack, or break in wet areas. This means you won’t need to fix or replace them often, which saves money.
MgO boards stay strong and don’t crack in tough conditions.
Their fire and water resistance make them last longer than other materials.
They need little care, cutting down on maintenance costs for everyone.
Choosing MgO boards means spending less over time while keeping your floors strong.
Extended Lifespan and Reduced Replacement Needs
MgO boards are very durable, making them a smart choice for building. They stay strong even in places with high humidity or changing weather. This strength means fewer replacements, saving both time and money.
MgO boards last longer than many other materials, giving better value.
Tests show they stay strong even after years in tough conditions.
Their lightweight design makes them easy to install, saving on labor costs.
With MgO boards, your floors will last a long time, giving you a solid base for your projects.
Faster Installation and Labor Savings
MgO boards are made to be easy and quick to install. They are light, so they’re simple to move and handle. This speeds up building and lowers labor costs.
Building Systems | Total Hours | Hours Saved | Labor Cost Saved | |
---|---|---|---|---|
Stick-Built Shell | 237.47 | – | $10,094 | – |
SIP Shell | 106.93 | 130.54 | $5,923 | $4,171 |
Total Difference | – | -55% | -41% | – |
Using MgO boards can cut building time by over half, saving money on labor. They work well with modular systems, making construction smooth and fast.
Compatibility with Modular Systems
MgO boards fit perfectly with modular building systems. Their light weight makes them easy to carry and move. You can install them quickly, even in small or tight areas. This reduces the total weight of modular units, saving time and effort during construction.
Because they are lighter, MgO boards put less pressure on foundations. This allows for more creative designs without risking the building’s base. Whether for homes or offices, MgO boards let you design freely while keeping the structure strong.
Another benefit is how well they work with other modular parts. You can cut, drill, or shape MgO boards to fit different systems. They stay strong and work for floors, walls, or ceilings. This makes sure all parts fit together smoothly, avoiding delays or mistakes.
MgO boards also support eco-friendly building. Their green materials match modular construction goals like reducing waste. By using MgO boards, you help the environment while enjoying their practical features.
Tip: Use MgO boards in your modular projects for easy use and great results. They make building faster and improve quality.
With MgO boards, you can build quicker and better without losing strength or design options.
Installation and Maintenance Insights
Installation Best Practices
Installing MgO boards the right way makes them last longer. Follow these simple steps for a smooth installation:
Cutting the Boards: Measure the area carefully before cutting. Mark the boards and cut them with a utility knife or a saw with a carbide blade. Make sure cuts are clean for a good fit. Don’t use power saws indoors to stay safe.
Positioning and Fastening: Place the boards on a flat surface. Leave a 6mm gap near walls for expansion. Start screwing the boards from the center, keeping screws 200-250mm apart. Make sure the board edges rest on joists for support.
Sealing and Finishing: Use joint compound or adhesive to seal seams. Sand the surface to make it smooth. Add a primer or sealant to protect the boards and get them ready for paint or other finishes.
Tip: Try to cut the boards as little as possible. Fewer cuts save time and reduce mistakes.
MgO boards are light, so they’re easy to carry and install. They work well with modular systems, making the process faster and less disruptive.
Maintenance Tips for Longevity
Taking care of MgO boards helps them stay strong and last longer. Here’s how to keep them in great shape:
Keep Them Clean: Sweep or vacuum often to remove dirt. This stops scratches and keeps the boards looking good.
Inspect for Damage: Look for cracks, chips, or loose screws. Fix problems quickly to keep the boards strong.
Protect Against Moisture: Even though MgO boards resist water, adding a sealant gives extra protection in wet areas. This keeps them mold-free and durable.
Avoid Harsh Chemicals: Use gentle cleaners to avoid harming the surface. Strong chemicals can damage the protective layer over time.
Note: MgO boards need less care than other materials. Their resistance to pests, mold, and fire means fewer repairs are needed.
By following these easy tips, you can help your MgO boards last longer and work better for many years.
MgO boards are a great choice for modular subfloors. They resist fire, water, and damage, lasting a long time. These boards are eco-friendly, helping the environment while building. They save money because they need little care and last longer. Their design works well with modular systems, making installation faster and easier.
If you need strong and affordable materials, choose MgO boards. Their many benefits make them perfect for modern building projects.
FAQ
What are MgO boards made of?
MgO boards are made from magnesium oxide, magnesium sulfate, and fillers like wood fiber or fiberglass. These materials make them strong, eco-friendly, and resistant to fire, water, and pests.
Can MgO boards be used in wet areas?
Yes, MgO boards are great for wet or humid places. They don’t warp or grow mold, so they’re perfect for bathrooms, kitchens, and basements.
Are MgO boards environmentally friendly?
Yes! MgO boards are made with fewer natural resources. They are recyclable, non-toxic, and free of asbestos, which helps protect the environment. 🌱
How long do MgO boards last?
MgO boards are very strong and last a long time. They resist damage from fire, water, and wear. With good care, they can last for many decades.
Do MgO boards require special tools for installation?
No, you can use regular tools like utility knives or saws with carbide blades to cut MgO boards. They are lightweight, so installing them is fast and simple.
Tip: Wear safety gear when cutting MgO boards to stay safe from dust.