
24 May Cement Board vs MgO Board Key Differences You Need to Know
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When choosing materials for building, knowing the differences helps. Cement board and MgO board are not the same. They vary in strength, durability, and environmental effects. MgO boards resist fire and water better. Cement boards need extra treatments for similar protection. MgO boards are easier to use and very flexible. This makes them popular in modern building projects. But cement boards are cheaper, so they’re good for tight budgets.
MgO boards have more benefits. They are light, eco-friendly, and don’t crack easily. This makes them last longer. Cement boards are heavier and cost more to maintain over time. Comparing both helps you pick what works best for your project.
Key Takeaways
MgO boards are great for fire safety. They don’t burn and stay strong in high heat.
In wet areas, MgO boards stop mold and mildew. Cement boards need extra care to last as long.
MgO boards are better for the environment. They make less CO2 and help with green building.
MgO boards are light and easy to install. Cement boards are heavier and need special tools.
Cement boards cost less at first, but MgO boards save money over time because they last longer and need less fixing.
Fire Resistance
Fire Resistance of Cement Board
Cement boards can handle high heat well. This makes them a good choice for fire safety. Their fire resistance depends on what they are made of. Boards with fewer tiny holes (low porosity) do better in heat. When heated to 250–750 °C, cement boards change. They lose strength as the heat increases. If ceramic waste is added, it can make them resist fire better. This is because it lowers porosity, helping the board stay strong under heat.
Fiber cement boards are a type of cement board. They also resist fire but not as well as MgO boards. To improve their fire resistance, extra coatings or treatments may be needed.
Fire Resistance of Magnesium Oxide Boards
MgO boards are great at resisting fire. They don’t burn and can handle high heat for a long time. These boards meet strict fire safety rules like ASTM E119. During a fire, they may lose up to 50% of their weight. Even so, they stay strong and don’t catch fire, making them safer for risky areas.
MgO boards are also good for the environment. This makes them useful in eco-friendly building projects. Reports like ICC-ES ESR-5418 show how well MgO boards perform in fire tests. They are reliable in tough situations.
Head-to-Head Comparison for Fire-Prone Areas
When comparing cement boards and MgO boards, MgO boards are better for fire safety. A study showed MgO boards lose more weight (50%) in fires. But they stay strong longer than other materials. Fiber cement boards resist fire but need extra treatments to match MgO boards.
Here’s a table comparing fire resistance:
Board Type | Fire Resistance Rating |
---|---|
MgO Board | Very fire-resistant, doesn’t burn (1-2 hours) |
OSB | Not fire-resistant, burns easily |
Gypsum Board | Fire-resistant, needs extra treatments |
Fiber Cement Board | Fire-resistant, less than MgO boards |
For fire-prone areas, MgO boards are the best choice. They don’t burn and meet fire safety standards. Cement boards work too but may need extra steps to match MgO boards. Choose based on your project’s fire safety needs.
Moisture Resistance
Moisture Resistance of Cement Board
Cement boards can handle some moisture but not for too long. Their ability to resist water depends on how they are made. If they stay wet for a long time, they might change shape. This can make them less strong. Tests show that cement particleboards react differently to water over 504 hours. Some boards swell or shrink, while others soak up water. This changes their size and weight. Boards with changes made to them are often weaker in wet places.
Fiber cement boards are a better type of cement board for wet areas. They don’t soak up water as much and don’t swell easily. This makes them good for bathrooms and kitchens. But in very damp places, they might need extra coatings to keep water out.
Moisture Resistance of MgO Board
MgO boards are great at resisting water. They stay strong even in very wet places. These boards can last over 30 years in normal UK weather without breaking down. They don’t let mold or mildew grow, so they’re perfect for pools, saunas, and damp areas.
Still, MgO boards have some problems. In Denmark, some types soaked up water from the air. This caused damage and rust. To avoid this, use sulfate-based MgO boards. These absorb less water and work better in wet air. For outdoor use, MgO boards might need extra protection if the air is very humid, above 84%.
Best Applications for Moisture-Resistant Materials
Cement boards and MgO boards both work well in wet places. MgO boards are strong and resist water, mold, and mildew. They are great for bathrooms, kitchens, and basements. They also work outside if the air isn’t too humid.
Fiber cement boards are cheaper and good for places that aren’t too wet. They work in laundry rooms and entryways but might need sealing to last longer. Cement boards are often used under tiles in bathrooms and kitchens because they can handle some water.
When picking a material, think about your project’s needs. MgO boards are better for very wet places and last longer. Cement boards, including fiber cement boards, cost less but might need extra care to match MgO boards’ durability.
Durability
Long-Term Durability of Cement Board
Cement boards are strong and last a long time. They work well in busy areas where floors or walls get used a lot. But their strength depends on the environment. In dry places, they stay sturdy for many years. In wet or humid areas, they can weaken unless sealed properly.
Fiber cement boards are a better choice for damp places. They don’t crack or bend easily. However, being in water for too long can still make them weaker. To keep them strong, add water-resistant coatings or use them where moisture is controlled.
Durability of Magnesium Oxide Boards
MgO boards are very tough and long-lasting. They don’t crack, bend, or break down even in hard conditions. These boards work well inside and outside buildings. They resist mold, mildew, and bugs, which helps them stay strong for years.
MgO boards also stay sturdy in wet or humid places. Their water resistance keeps them reliable over time. This makes them a great choice for areas with lots of moisture or bad weather.
Head-to-Head Comparison of Durability
MgO boards are stronger than cement boards when comparing durability. They resist water, pests, and other environmental problems better. MgO boards keep their shape and strength longer, especially in wet conditions.
Fiber cement boards are fairly durable but need extra care to match MgO boards. If your project needs strong and reliable materials, MgO boards are the best option. For simpler projects, cement boards can save money and still work well.
Here’s a quick comparison:
Feature | Cement Board | MgO Board |
---|---|---|
Water Resistance | Okay | Excellent |
Mold/Mildew Resistance | Low | High |
Longevity | Long (needs care) | Long (low upkeep) |
Structural Strength | Good | Very strong |
Pick the material that fits your project and the environment.
Environmental Impact

Environmental Considerations for Cement Board
Making cement boards harms the environment in many ways. The process uses a lot of energy, mostly from burning coal. This releases carbon dioxide (CO2), which causes global warming. Breaking down carbonates during production adds even more CO2. Burning fuels also creates gases like sulfur oxides (SOX) and nitrogen oxides (NOX). These gases lead to acid rain and damage soil. Coal burning releases heavy metals that pollute nature and cause lasting harm.
Here’s a simple table of the effects:
Environmental Problem | Cause |
---|---|
Fossil Fuel Use | Coal burned for energy |
Carbon Pollution | CO2 from carbonate breakdown |
Air Particles | NOX from fuel burning |
Acid Rain | SOX from fuel burning |
Soil Pollution | Heavy metals from coal |
Cement boards are not the best choice for eco-friendly projects. Their production leaves a big carbon footprint, making them less green than other options.
Eco-Friendliness of MgO Board
MgO boards are much better for the environment. Making them produces 40–50% less CO2 than cement boards. Using MgO boards in mixed-material buildings can lower carbon use by 35%. They meet Environmental Product Declarations (EPDs), which are needed for green building programs like the Green Deal.
MgO boards don’t use harmful chemicals or heavy metals. This makes them safer for nature. They work well in many building projects without hurting the environment. Whether used inside or outside, MgO boards support eco-friendly construction.
Feature | MgO Board Advantage |
---|---|
Lower Carbon Emissions | 40–50% less than cement boards |
Reduced Embodied Carbon | Up to 35% in mixed projects |
Green Building Compliance | Meets EPD standards |
Sustainability Comparison Between the Two
When comparing the two, MgO boards are better for the planet. Cement boards need more energy to make and release more CO2. They also cause acid rain and harm ecosystems with pollution.
MgO boards have fewer emissions and meet green building rules. They last longer and resist water, so they don’t need replacing often. If you care about the environment, MgO boards are the smarter choice for sustainable building.
Ease of Installation
Installation Process for Cement Board
Putting in cement boards takes planning and care. First, measure and cut the boards to fit your space. Use a power saw or a scoring tool for cutting. After cutting, attach the boards with screws or nails. Make sure the screws are spaced evenly to avoid cracks.
Fiber cement boards are installed in a similar way. However, they are heavier, so lifting them is harder. Cutting them needs special tools like carbide-tipped blades. They are stiff and can break, so they don’t work well on curved surfaces.
Installation Process for Magnesium Oxide Boards
MgO boards are easier to install. You can score and snap them like drywall or cut them with a saw. They are lightweight, so they’re simple to carry and move. Unlike fiber cement boards, MgO boards can bend slightly for curved designs. This makes them great for creative projects.
MgO boards also handle temperature changes well and don’t soak up much water. This keeps them from bending or warping during installation. You can drill into them without worrying about cracks. These features save time and effort, especially for big projects.
Tip: Use regular tools like saws and drills with MgO boards. They are as easy to work with as drywall, making them good for beginners.
Which Material is Easier to Work With?
MgO boards are easier to install than cement boards. They are light and flexible, so they’re simple to handle. You can cut, drill, and shape them with basic tools. They also work well on curved surfaces, unlike fiber cement boards, which are stiff and break easily.
Cement boards are heavier and harder to cut. You need special tools, and their stiffness limits their use. For simple projects, cement boards are fine. But if you want something quick and flexible, MgO boards are the better choice.
Cost
Cost Analysis of Cement Board
Cement board is a cheaper choice for building projects. It costs less upfront, making it great for tight budgets. Fiber cement boards, a type of cement board, are easy to find and affordable. But the price doesn’t end with buying the boards. You might need to spend more on coatings or treatments. These extras help improve fire and water resistance. In tough environments, these added costs can make projects more expensive.
Tip: For low-cost projects in dry areas, cement board works well.
Cost Analysis of MgO Board
MgO boards cost more than fiber cement boards at first. Their higher price reflects their better fire, water, and durability features. Over time, they save money because they need less care and last longer. You won’t have to replace them often, which lowers future costs. Plus, their eco-friendly production can qualify for green building rewards. These rewards might help cover some of the initial expense.
MgO boards are best for projects needing strong and sustainable materials. While they cost more upfront, their benefits make them worth it over time.
Value for Money: Head-to-Head Comparison
Choosing between cement board and MgO board depends on your project. Cement board is cheaper at first but may cost more later for upkeep. MgO boards cost more upfront but save money with their durability and low maintenance.
Here’s a simple comparison:
Feature | Cement Board | MgO Board |
---|---|---|
Upfront Cost | Low | High |
Maintenance Costs | High | Low |
Long-Term Savings | Moderate | Excellent |
For short-term savings, cement board is a good pick. For long-term value and better performance, MgO boards are the smarter choice.
Picking between cement board and MgO boards depends on your project needs. Cement boards are strong and affordable, making them good for regular building. They work well in dry places and under tiles. In wet areas, they might need extra care. Fiber cement boards, a common type, resist water better but still need sealing in damp spots.
MgO boards are great for fire safety, water resistance, and being eco-friendly. They stop mold, mildew, and bugs, making them ideal for modern green projects. Their light weight makes them easy to install and good for creative designs. More people are choosing MgO boards because of their benefits. By 2029, the market size is expected to grow to $2.68 billion, helped by green building rules and lightweight construction trends.
Year | Market Size ($ billion) | Growth Rate (%) |
---|---|---|
2024 | 1.86 | N/A |
2025 | 1.97 | 6.4 |
2029 | 2.68 | 8.0 |
Tip: Choose MgO boards for lasting value and eco-friendly projects. Pick cement boards for cheaper options that still work well.
Think about your budget, environmental goals, and building needs before deciding.
FAQ
1. Can MgO boards be used outdoors?
Yes, MgO boards work well outdoors. They resist water, mold, and mildew. For humid climates, choose sulfate-based MgO boards. Add protective coatings if the air humidity exceeds 84%.
2. Are cement boards safe for fire-prone areas?
Cement boards resist fire but need extra treatments for better protection. Fiber cement boards perform better than regular cement boards. For high fire safety, MgO boards are a better choice.
3. Which board is easier to install?
MgO boards are easier to install. They are lightweight and flexible, making them simple to cut and shape. Cement boards are heavier and require special tools for cutting.
4. Do MgO boards cost more than cement boards?
MgO boards cost more upfront. However, they save money over time due to their durability and low maintenance. Cement boards are cheaper initially but may need additional treatments.
5. Are MgO boards eco-friendly?
MgO boards are eco-friendly. Their production releases less CO2 compared to cement boards. They meet green building standards and support sustainable construction.