
03 May Pros and Cons of MgO Boards Compared to Gypsum Boards
Table of Contents
When comparing MgO board vs gypsum board, it’s important to understand their differences. MgO boards are durable and long-lasting but come at a higher cost, similar to cement boards. On the other hand, gypsum boards are more affordable and easier to install, making them a popular choice for various projects. While MgO boards require more effort to install due to their toughness, gypsum boards are smoother and need less work to finish. Knowing these distinctions between MgO board vs gypsum board will help you select the right material for your project.
Key Takeaways
MgO boards are great for fire safety. They last up to four hours, making them perfect for important buildings.
Gypsum boards cost less and are simple to install. They are a good choice for quick and cheap projects.
MgO boards handle water and mold well. They work in wet places like bathrooms and kitchens. Gypsum boards can get weak when wet.
MgO boards are heavier, so they need more work to install. Gypsum boards are lighter and easier to handle.
Think about your project needs. Use MgO boards for strength and fire safety. Pick gypsum boards if you want something cheaper and easier to use.
Advantages of MgO Boards
Fire Resistance
MgO boards are great at resisting fire, making them safe. They are rated A1 non-combustible, meaning they don’t burn. In fire tests, MgO boards last up to four hours. Gypsum boards, however, only last 30 to 60 minutes. This makes MgO boards better for keeping buildings strong during fires.
These boards stay strong even in high heat. They don’t bend or sag, which keeps them safe. MgO boards also slow down heat transfer, adding more fire protection. This makes them perfect for schools, hospitals, and places needing high fire safety.
Moisture and Mold Resistance
MgO boards resist water well, so they work in damp places. Unlike gypsum boards, they don’t soak up water. This stops mold and keeps them strong. They are great for bathrooms, kitchens, and basements.
But MgO boards shouldn’t touch water directly for too long. If they do, salty spots might appear on the surface. Still, they handle most wet conditions well, making them a good choice for many uses.
Durability and Strength
MgO boards are very strong and last a long time. They can handle heavy impacts without breaking. Gypsum boards, on the other hand, are easier to damage.
The fiberglass in MgO boards makes them even tougher. They stay strong over time, even in busy areas. Builders like them for projects needing durable materials. Their strength lowers repair costs and keeps buildings safe for years.
Eco-Friendliness
MgO boards are a green choice for building projects. Making them releases less CO2 than concrete, helping the planet. They don’t have harmful chemicals or VOCs, keeping air safe indoors. For instance, NEXGEN MAXTERRA® MgO is ICC-ES certified. This shows it meets strict building rules and is eco-friendly.
MgO boards resist fire, water, mold, and even pests like bugs. They last long, so you don’t need to replace them often. This reduces waste and helps the environment. Their strength and storm resistance make them better than plywood or drywall. By using MgO boards, you help the Earth and get a strong material.
Sound Insulation
MgO boards are great for keeping spaces quiet. Their tiny holes trap sound, stopping noise from spreading. They work better than gypsum boards or plywood for soundproofing.
MgO boards block noise well. They keep sounds from moving through walls. Their porous design absorbs sound better than other materials.
Whether it’s a house, office, or studio, MgO boards help reduce noise. They are perfect for places needing peace and quiet.
Disadvantages of MgO Boards
Higher Cost
MgO boards cost more than gypsum boards. Making them needs special steps and pricey materials. For example, one MgO board sheet costs much more than a gypsum board. But they can be cheaper than some special boards or cement products.
Even though MgO boards are fireproof and eco-friendly, their high price may not suit tight budgets. Still, they might save money later by needing less finishing and fewer materials to install.
Limited Availability
MgO boards are harder to find than gypsum boards. This makes it tricky to get them, especially in areas using common materials. Problems with MgO boards, like in outside walls, have caused worries. For example, MgO boards don’t work well in very humid places (over 84%). In such spots, they might crack or leak salty water, which harms metal parts.
If you want MgO boards, plan early to avoid delays. Their limited supply could slow down your project.
Installation Challenges
Installing MgO boards is harder than gypsum boards. Their toughness needs special tools like diamond blades for cutting. This raises labor costs and takes more time. MgO boards can also break easily and don’t hold nails well.
Problem | Details |
---|---|
Special tools needed | Diamond blades are required to cut MgO boards. |
Higher labor costs | Longer installation times increase work expenses. |
Nail-holding issues | MgO boards may not hold nails firmly, causing problems. |
Bad installation can create dust, which is unsafe to breathe. To avoid these issues, hire experts who know how to install MgO boards properly.
Corrosion Risk
MgO boards can rust metal when wet for a long time. This happens because magnesium chloride in MgO boards reacts with water. It creates salty spots that can touch metal parts like screws or frames. This contact causes rust and weakens the structure.
Tip: Use stainless steel or coated screws to stop rust. These materials are better at resisting corrosion than regular metal.
Avoid using MgO boards in very humid places, like near the ocean. In such areas, the boards may soak up moisture from the air. This increases the chance of rust. Sealing and waterproofing can help but add extra cost and work.
If your project uses metal parts, think carefully about MgO boards. The risk of rust might outweigh their other good features in these cases.
Heavier Weight
MgO boards weigh more than gypsum boards, making them harder to handle. Their dense material adds weight, needing more effort to move and install.
Material | Weight per Sheet | Ease of Handling |
---|---|---|
MgO Boards | Heavier | Needs more workers |
Gypsum Boards | Lighter | Easier to carry |
You might need tools like lifts or dollies to move MgO boards. This raises labor costs and slows down the work.
For projects needing lightweight materials, like ceilings, MgO boards may not work well. Their weight can strain the structure and cause problems later.
Note: If you pick MgO boards, make sure the structure can hold the extra weight. This keeps the building safe and strong over time.
Advantages of Gypsum Boards

Cost-Effectiveness
Gypsum boards are a cheaper option for building projects. Making them costs less than many other materials. This makes them popular for homes and businesses. For example, they need less money to buy and use, lowering project costs.
Studies show gypsum boards save money over time. They cut labor and material costs during setup. Their strength means fewer repairs or replacements, saving even more money.
Ease of Installation
Gypsum boards are simple to install, great for quick projects. They are light, so moving and placing them is easy. Unlike plaster, they cover big areas fast, saving time and reducing waste.
Builders say gypsum boards work well for walls, ceilings, and fire safety. They are flexible and help finish projects on time. Their easy setup lets you work quickly without losing quality.
Lightweight Design
Gypsum boards are light, making them easy to use. You can carry and move them without much effort. This lowers labor costs and speeds up building. Their light weight also reduces stress on structures, perfect for ceilings.
Even though they are light, gypsum boards are strong and last long. This mix of lightness and strength fits modern building needs. Whether fixing a house or building something big, their light design makes work easier and faster.
Wide Availability
Gypsum boards are easy to find for building projects. Most hardware stores and supply shops sell them. They are available almost everywhere, in cities or rural areas. This makes it easier to avoid delays and stay on schedule.
There are many types of gypsum boards in the market. These include wallboards, ceiling boards, and pre-decorated boards. Each type is made for specific building needs, giving you many choices. Gypsum boards also come in different thicknesses for various uses. Thin boards are good for ceilings, while thick ones block sound better for walls.
Gypsum boards are popular in many regions. North America uses them a lot for eco-friendly buildings. In the Middle East and Africa, their use is growing fast. This is because of more construction and infrastructure projects. These trends show gypsum boards are trusted worldwide for their quality and flexibility.
Tip: Before starting your project, check if gypsum boards are available nearby. This helps you get the right type and size without delays.
Smooth Finish
Gypsum boards have a smooth surface, perfect for walls and ceilings. Their even finish makes painting or adding wallpaper easy. You can make your space look great without much work.
The smoothness of gypsum boards also improves how your space looks. Unlike other materials, they don’t need a lot of sanding or extra steps. This makes them a top choice for projects where looks are important. Whether fixing a home or designing an office, gypsum boards help create a neat and modern style.
Gypsum boards are simple to shape. You can cut them to fit special designs or spaces.
Their smooth finish and easy preparation make gypsum boards a smart and stylish choice for builders and homeowners.
Disadvantages of Gypsum Boards
Fire Resistance Limitations
Gypsum boards can resist fire, but only for a short time. Their core has water in hydrated calcium sulfate. When heated, the water turns to steam, slowing flames briefly. But once the water is gone, the board weakens and crumbles.
This makes gypsum boards less useful in places needing high fire safety. For example, industrial buildings may need MgO boards that last longer in fires. While gypsum boards meet basic fire rules, they may not protect enough for critical uses.
Susceptibility to Moisture
Gypsum boards absorb water easily, which weakens them over time. In humid or wet areas, they swell, warp, and grow mold. Tests show how moisture affects their strength:
Condition | GYP #2 Strength Loss | ISO Strength Loss | |
---|---|---|---|
50% RH | None | None | None |
95% RH | 30% | 20% | None |
Water Immersion | 40% (1 hour) | 40% (1 hour) | 30% (1 hour) |
Moisture Content | 55% (6% moisture) | 37% (6% moisture) | 27% (6% moisture) |
Oven Drying | Regained full strength | Regained full strength | Regained full strength |
The table shows gypsum boards lose strength in wet conditions. Drying helps, but repeated moisture causes lasting damage. This makes gypsum boards a bad choice for bathrooms, basements, or damp spaces.
Lower Durability
Gypsum boards are not as strong as other materials. They dent, scratch, and crack easily, especially in busy areas. Unlike MgO boards, which resist damage, gypsum boards need more repairs.
Another issue is the dust from cutting or sanding gypsum boards. This dust can irritate lungs and may contain silica, which is harmful. Workers exposed to it often face health risks like breathing problems.
Tip: Wear masks and safety gear when working with gypsum boards.
If you need a tough material for heavy use, gypsum boards might not work well. They are less durable and can cause health concerns, making them unsuitable for demanding projects.
Environmental Concerns
Gypsum boards are popular but have some environmental issues. Their production and disposal can harm the planet. Think about these points when picking materials for your project.
Raw Material Sourcing: Gypsum boards use natural gypsum, which is limited. Recycling can reduce mining and cut down on landfill waste.
Energy Consumption: Making gypsum boards uses a lot of energy. Factories with energy-saving methods can lower emissions and their carbon footprint.
Water Usage: Producing gypsum boards needs plenty of water. Recycling water during production helps save resources and reduce waste.
Harmful Emissions: Some chemicals in gypsum boards release harmful gases. Choosing low-emission options can help reduce air pollution.
Lifecycle Impact: A lifecycle assessment (LCA) checks the environmental effects of gypsum boards. This shows ways to improve, like recycling more or cutting waste.
Tip: Pick brands that focus on eco-friendly practices. This helps your project stay green and sustainable.
Gypsum boards don’t break down naturally. In landfills, they can release hydrogen sulfide gas, which is harmful. Recycling old boards into new ones can solve this problem. By knowing these issues, you can make better choices for your project and the environment.
Limited High-Stress Applications
Gypsum boards work well for regular use but not in tough conditions. They are not strong enough for areas needing extra durability.
These boards can crack or break under heavy pressure. For example, they may fail in industrial spaces where walls face hard impacts. In earthquake zones, gypsum boards might not provide enough support.
Material | Impact Resistance | Best Use Cases |
---|---|---|
Gypsum Boards | Low | Homes, offices, light-duty areas |
MgO Boards | High | Schools, hospitals, high-traffic zones |
Gypsum boards also don’t handle extreme weather well. High humidity, heavy rain, or freezing temperatures can weaken them. This makes them a poor choice for outdoor or exposed areas.
Note: For tough projects, use MgO boards or cement boards. These materials are stronger and last longer in harsh conditions.
Knowing these limits helps you pick the right material. Gypsum boards are good for many uses but not for high-stress situations.
Picking between MgO and gypsum boards depends on your project. MgO boards are strong, fireproof, and handle tough conditions well. They work great in damp areas if made with good materials. This makes them a smart choice for bathrooms or outdoor spaces. Gypsum boards, on the other hand, are cheaper, lighter, and easy to find. They are ideal for homes and offices.
For harsh conditions like freezing weather or heavy impacts, MgO boards are better. But for quick setups or smooth surfaces, gypsum boards are easier to use. Think about your budget, the environment, and your project needs to decide.
FAQ
1. Which board is better for fire safety, MgO or gypsum?
MgO boards offer superior fire resistance. They can withstand fire for up to four hours, while gypsum boards last only 30 to 60 minutes. If fire safety is a priority, you should choose MgO boards.
2. Are MgO boards worth the higher cost?
Yes, if you need durability, fire resistance, and moisture protection. MgO boards last longer and require fewer repairs. Over time, they may save you money despite the higher upfront cost.
3. Can you use gypsum boards in wet areas?
No, gypsum boards absorb water and weaken in damp conditions. They can swell, warp, or grow mold. For bathrooms or basements, you should use MgO boards instead.
4. Do MgO boards harm the environment?
MgO boards are eco-friendly. Their production emits less CO2 compared to other materials. They also last longer, reducing waste. Choosing MgO boards helps you minimize your environmental impact.
5. What tools do you need to install MgO boards?
You need specialized tools like diamond blades for cutting. MgO boards are tougher than gypsum boards, so standard tools won’t work. Hiring skilled workers ensures proper installation.