MgO Board Drywall vs Gypsum Board A Comprehensive Comparison

magnesium oxide board drywall

MgO Board Drywall vs Gypsum Board A Comprehensive Comparison

Key Differences Between Two Board Types

Explore the essential comparisons of MgO and gypsum boards.

Features

gypsum board

mgo board drywall

Cost

Cheaper, $0.50–$1.00 per sq ft.

More expensive, $1.50–$2.50 per sq ft.

Durability

Less durable, prone to damage.

Highly durable, resists damage.

Fire Resistance

Limited fire resistance, up to 1 hour.

High fire resistance, up to 4 hours.

Moisture Resistance

Absorbs moisture, prone to mold.

Excellent moisture resistance, mold-free.

Weight

Lightweight, easy to handle.

Heavier, harder to install.

Environmental Impact

Less eco-friendly, harder to recycle.

Eco-friendly, made from natural materials.

Sound Insulation

Moderate sound insulation.

High sound insulation capability.

Installation Ease

Easier to install, requires less skill.

Requires skilled labor for installation.

When picking between MgO board drywall and gypsum board, knowing their differences is important. MgO boards are stronger and better for the environment, perfect for busy areas. Gypsum boards are lighter and cheaper, great for saving money. For instance:

  1. Cost: MgO boards cost $1.50–$2.50 per square foot. Gypsum boards cost $0.50–$1.00 per square foot.

  2. Durability: MgO boards last longer and resist damage. Gypsum boards wear out faster.

  3. Environmental Impact: MgO boards are made with eco-friendly materials and lower CO₂ emissions. Gypsum boards are harder to recycle.

Choosing the right one depends on your project. Think about strength, price, or being eco-friendly.

Key Takeaways

  • MgO boards are stronger and last longer than gypsum boards. They work well in busy places like schools and hospitals.

  • Gypsum boards cost less and are simple to put up. They are great for small projects and homes.

  • MgO boards handle fire and water better than gypsum boards. This makes them safer for wet or fire-prone areas.

  • Think about future costs when picking materials. MgO boards cost more at first but save money later because they last longer.

  • Both boards can be eco-friendly, but MgO boards harm the environment less. They are better for green building projects.

Understanding MgO Board and Gypsum Board

What Is MgO Board?

MgO board stands for magnesium oxide board. It is strong and long-lasting. It is made from magnesium oxide mixed with other materials. These include magnesium chloride, perlite, wood fibers, and fiberglass mesh. This mix makes MgO boards light, fireproof, and water-resistant. To make them, materials are mixed, hardened, and checked for quality.

MgO boards are great at stopping fires. They have an A1 non-combustible rating. They do not release harmful gases in a fire, keeping people safe. They also resist moisture, stopping mold from growing. This makes them perfect for wet places. MgO boards work well in busy places like offices, hospitals, and schools.

What Is Gypsum Board?

Gypsum board is also called drywall. It is a common building material. Its core is made of gypsum, a type of calcium sulfate. It is covered with paper or fiberglass. This makes gypsum boards light and easy to install.

Gypsum boards are used for walls and ceilings inside buildings. They are cheap and easy to find. They resist fire and block sound well. This makes them good for homes and offices. But they are not as strong as MgO boards. They also do not do well in wet areas.

Key Material Composition Differences

The materials in MgO and gypsum boards affect how they work. The table below shows their main differences:

Material

Main Component

Extra Materials

MgO Board

Magnesium oxide core

Fiberglass mesh, fillers, water blockers

Gypsum Board

Calcium sulfate dihydrate core

Paper or fiberglass covering

MgO boards use magnesium oxide for strength and fireproofing. Gypsum boards use calcium sulfate for their core. Fiberglass mesh in MgO boards makes them tougher. Paper or fiberglass on gypsum boards improves their surface. MgO boards are better for tough jobs. Gypsum boards are cheaper for regular use.

Comparing Material Properties

Weight and Density

The weight and density of MgO board and gypsum board are important. MgO boards are heavier because they are denser. This makes them stronger and last longer. However, their weight makes them harder to carry and install. Gypsum boards are lighter, so they are easier to move and set up. If you want something easy to handle, choose gypsum boards. But for stronger materials, the heavier MgO boards are better.

Strength and Durability

MgO boards are very strong and durable. They resist scratches, dents, and damage. This makes them great for busy places like schools or hospitals. Gypsum boards are good for normal use but can crack or dent more easily. Over time, they may need fixing or replacing. If you need something that lasts a long time, pick MgO boards. For simple projects, gypsum boards are a cheaper choice.

Fire Resistance

Fire safety is very important in building projects. MgO boards are better at resisting fire than gypsum boards. They do not burn or release harmful gases in a fire. They can protect against fire for up to 4 hours. Gypsum boards resist fire too but only for about 1 hour. They can weaken and break under high heat. The table below shows the main differences:

Criteria

MgO Board

Gypsum Board

Fire Resistance Rating

A1 Non-Combustible – High fire resistance.

Fire-Resistant (Limited) – Up to 1 hour.

Thermal Combustibility

Non-Combustible – Does not burn.

Combustible – Softens under high heat.

Flame Spread

Low Flame Spread – Slows fire spread.

Moderate Flame Spread – Limited control.

Heat Resistance

High – Maintains integrity under heat.

Medium – Degrades with prolonged exposure.

Smoke and Toxic Gas Emissions

Low – Minimal smoke, no toxic gases.

Moderate – Emits non-toxic gases.

Fire Endurance

Very High – Up to 4 hours of protection.

Limited – 30-60 minutes of protection.

If fire safety matters most, MgO boards are the best choice. They handle heat well and slow down fire spread, keeping your property safer.

Moisture and Mold Resistance

MgO board handles moisture better than gypsum board. Its surface does not soak up water. This stops swelling, bending, or breaking when wet. It also blocks mold from growing, making it great for damp places like bathrooms or basements.

Gypsum board absorbs water more easily. Its soft core can soak up moisture, causing damage over time. Some gypsum boards resist water, but they are not as good as MgO boards in wet areas. Mold can grow on gypsum boards if they stay wet too long, which can be harmful.

Here’s a comparison:

Feature

MgO Board

Gypsum Board

Water Absorption

Low – Keeps water out

High – Soaks up water easily

Mold Resistance

Excellent – Stops mold growth

Moderate – Mold may appear

Suitability for Wet Areas

Very good

Limited

For wet spaces, MgO board is stronger and lasts longer. Gypsum board works better in dry areas but may need extra care to resist water.

Sound Insulation

MgO board is great at blocking sound. Its dense material reduces noise well. This makes it perfect for schools, offices, or apartments where quiet is needed.

Gypsum board also blocks sound but not as much. It is lighter and less dense, so it lets more noise through. Special soundproof gypsum boards exist for better sound control.

Here’s a quick look:

Feature

MgO Board

Gypsum Board

Soundproofing Capability

High – Blocks noise well

Moderate – Basic sound control

Best Use Cases

Noisy places

Regular homes

For the best soundproofing, MgO board is the top choice. Gypsum board is cheaper and works fine where sound control is less important.

Environmental Impact

mgo board eco friendly

Sustainability of MgO Board

MgO board is a very eco-friendly material. It is made using natural minerals like magnesium oxide. These minerals are common and can be replaced easily. Making MgO boards creates little waste and fewer harmful gases. This makes it a better choice for green projects.

MgO boards are also very strong and last a long time. They don’t need to be replaced often, which reduces waste. Plus, they can be recycled into new products. This helps lower their impact on the environment even more.

Another great thing is that MgO boards are safe for indoor air. They don’t release harmful chemicals or bad smells. This makes them a healthier option for homes, schools, and offices. If you care about the planet, MgO boards are a smart pick.

Sustainability of Gypsum Board

Gypsum board is also good for eco-friendly building. It is made with materials and methods that are kind to the earth. Many manufacturers use synthetic gypsum, which is a leftover from factories. This means less mining of natural gypsum, saving resources.

Gypsum board helps save energy in buildings. It keeps rooms warm or cool, so less heating or cooling is needed. This lowers energy use and saves money on bills.

It can also be recycled into new boards or other items. This reduces building waste and supports green certifications like LEED. These certifications are important for eco-friendly builders.

However, gypsum board doesn’t last as long as MgO board. It may need to be replaced more often, which can create more waste. Still, its recyclability and energy-saving features make it a good choice for green projects.

Cost and Installation

Cost Comparison

The price of MgO board and gypsum board is very different. MgO boards cost more upfront, about $1.50 to $2.50 per square foot. But they last longer and need fewer repairs. They resist fire and water, saving money over time. Gypsum boards are cheaper at first, costing $0.50 to $1.00 per square foot. However, they can cost more later because they get damaged easily.

Here’s a simple comparison:

Board Type

Cost per Square Foot

Long-term Value

MgO Board

$1.50 – $2.50

Strong, fireproof, and water-resistant, saving money in the long run.

Gypsum Board

$0.50 – $1.00

Cheaper upfront but may need more repairs, costing more over time.

If you want to save money in the long run, pick MgO boards. For a cheaper option now, gypsum boards are better.

Ease of Installation

Tools and Techniques

Installing MgO boards and gypsum boards needs different tools. MgO boards use basic tools like drills, screws, and saws. They don’t need extra steps or waiting time, so you can use them right away. Gypsum boards are lighter and easier to cut. But they need extra tools like tape and joint compound to finish.

Labor Requirements

MgO boards are easy to install with regular crews. No special training is needed, which saves time and effort. Gypsum boards are light but often need a separate team to install. They also take up to seven days to fully set, slowing down projects.

Tip: For quick and easy installation, choose MgO boards. For smaller projects, gypsum boards are simpler but take longer to finish.

Applications and Limitations

Common Uses of MgO Board

MgO board is strong and works well in many building projects. It resists fire, water, and damage, making it great for tough places. Here are some ways it’s used:

  • Hospitals and Schools: MgO boards handle heavy use and don’t wear out easily.

  • Airports and Train Stations: They block noise and resist fire, keeping people safe and comfortable.

  • Fire-Resistant Cladding Systems: MgO boards protect buildings in areas with high fire risk.

  • Subway and Utility Tunnels: They don’t soak up water, so they’re good for wet underground spaces.

  • Parking Garages: MgO boards hold up under heavy loads and bad weather.

The table below shows more uses and how MgO boards perform:

Application Type

Description

Performance Characteristics

Fire-rated walls

Used to make fireproof barriers in homes and offices.

Very durable and resists fire well.

Ceilings

Works indoors and outdoors, even in wet areas.

Handles moisture without damage.

Wall panels

Perfect for busy places like schools and hospitals.

Blocks sound and stops mold from growing.

Flooring

Great for floors in tough conditions.

Strong and lasts a long time.

Roofing and siding

Protects buildings in bad weather.

Fireproof and adds safety.

Common Uses of Gypsum Board

Gypsum board is cheap and easy to install. It’s popular for homes and businesses. Here are some common uses:

  • Residential Walls and Ceilings: Gypsum board makes smooth surfaces for homes.

  • Partitions in Commercial Buildings: Its light weight makes it good for dividing spaces.

  • Bathrooms and Kitchens: Special gypsum boards resist water in damp places.

  • Fire Protection: Gypsum board’s core doesn’t burn, helping meet fire rules.

  • Prefabricated and Modular Buildings: It’s used in prefab buildings because it’s quick and affordable.

The table below explains its uses in detail:

Application Type

Description

Versatility

Easy to install for walls, ceilings, and partitions.

Fire Resistance

Non-burning core makes it safe for fire regulations.

Sound Insulation

Helps reduce noise in buildings.

Cost-Effectiveness

A budget-friendly choice for homes and offices.

Moisture Resistance

Special boards work well in damp areas.

Impact Resistance

Some types resist dents and damage.

Eco-Friendly Options

Good for green building projects and certifications.

Limitations of MgO Board

MgO board has some downsides. Over time, extreme weather can slightly weaken it. Tests show that high humidity or big temperature changes may affect its strength. Long-term use requires proper setup and care for the best results.

Note: MgO boards work best in places they’re designed for. Always ask experts to make sure they’re right for your project.

Limitations of Gypsum Board

Gypsum board is widely used in construction but has some downsides. It is not as strong as materials like MgO board. This makes it less ideal for busy places with heavy use. For example, in schools or hospitals, it can crack or dent easily. Fixing these damages over time can cost more money.

Water is another problem for gypsum board. It absorbs moisture if exposed for too long. This can make it swell, bend, or even break apart. In wet areas like bathrooms or basements, it may not last unless specially treated. Even treated boards are not as water-resistant as MgO boards. If it stays wet, mold can grow, which harms indoor air quality.

Gypsum board also struggles in extreme conditions. High heat makes it soft, lowering its fire resistance. While it offers basic fire protection, it is not as safe as MgO board. Its lightweight design is easy to handle but not strong enough for heavy impacts or loads.

Here are common problems found in studies:

When picking materials, think about your project’s needs. Gypsum board is good for simple uses but not for tough conditions.

Pros and Cons of MgO Board and Gypsum Board

modular house wall panels

Pros of MgO Board

MgO board has many benefits that make it a great choice:

  • Fire Resistance: It has the highest fire rating, meaning it won’t burn. It protects against fire for up to four hours, making it safe for fire-risk areas.

  • Moisture Resistance: MgO board works well in wet places. It doesn’t get damaged by water and stops mold from growing. This makes it ideal for bathrooms, kitchens, and basements.

  • Strength and Durability: It is very strong and doesn’t crack or dent easily. This means it lasts longer and doesn’t need to be replaced often.

  • Eco-Friendly: MgO board is made from natural materials, which are better for the planet. It also helps with green building projects.

  • Thermal Insulation: It keeps heat in or out, making buildings more energy-efficient.

Tip: Choose MgO board if you need fire safety, water resistance, and long-lasting strength.

Cons of MgO Board

MgO board has some downsides to consider:

  • Higher Upfront Costs: It costs more than other materials, which might not fit small budgets.

  • Heavier Weight: It is heavier, making it harder to carry and install. This can slow down construction.

  • Skilled Labor Requirements: Installing it properly often needs trained workers for the best results.

Pros of Gypsum Board

Gypsum board is popular because it’s affordable and easy to use:

  • Cost-Effective: It is much cheaper than MgO board, making it a good choice for saving money.

  • Lightweight: Its light weight makes it easy to move and install, saving time and effort.

  • Versatile: Gypsum board comes in different types, like fire-resistant and water-resistant options, for various needs.

In 2023, gypsum board was used in over half of homes because it’s cheap and simple to install. It’s also common in offices and schools, showing how useful it is.

Note: Gypsum board is a smart pick if you want something affordable and easy to install.

Cons of Gypsum Board

Gypsum board has some downsides to think about before using it. One big problem is that it depends on the right environment for installation. The room must stay above 50°F for 48 hours before installing. It also shouldn’t go over 95°F during this time. If these conditions aren’t met, the board might not work well. This makes it a poor choice for places with extreme or changing temperatures.

Another problem is that gypsum board doesn’t handle water well. It soaks up moisture, which can make it swell, weaken, or even fall apart. Even water-resistant types don’t match the moisture protection of MgO board. If it stays wet for too long, mold can grow. Mold is bad for air quality and can cost a lot to fix.

Gypsum board is also not very strong. It can crack, dent, or chip if used in busy areas. This makes it less useful for places like schools or hospitals. Over time, fixing these damages can cost more money, making it less affordable in the long run.

Lastly, installing gypsum board needs careful attention. You have to follow rules like those in the Gypsum Association’s GA-216-2016 guide. If you don’t, the board might not look or work right.

Tip: For wet, busy, or extreme environments, MgO board is a better choice. It lasts longer and works better in tough conditions.

Picking between MgO board and gypsum board depends on your project. MgO boards are great for fire safety, water resistance, and strength. They work best in wet or fire-risk areas. Gypsum boards are lighter, cheaper, and good for regular indoor use.

Feature

MgO Board

Gypsum Board

Fire Resistance

Doesn’t burn, handles high heat well.

Less fire-resistant than MgO boards.

Moisture Resistance

Blocks water and mold effectively.

Can absorb water, even with moisture-resistant types.

Strength and Durability

Very strong and lasts a long time.

Can crack or get damaged easily.

Eco-Friendly

Made from natural, recyclable materials.

Not eco-friendly.

Cost

Costs more upfront.

Cheaper for tight budgets.

To decide:

  • Think about what your project needs, like fire or water safety.

  • Check the environment, such as wet or hot areas.

  • Compare costs with long-term benefits like durability.

Tip: Use MgO boards for fire or wet areas. For simple, low-cost projects, gypsum boards are a good pick. Always match the material to your project’s needs.

FAQ

1. Which board is better for fire safety?

MgO board is better for fire safety. It has a higher fire resistance rating and does not burn or release toxic gases. Gypsum board offers basic fire protection but weakens under high heat.

Tip: Use MgO board in areas with strict fire safety requirements.

2. Can I use MgO board or gypsum board in wet areas?

MgO board works better in wet areas. It resists water and mold effectively. Gypsum board absorbs moisture, which can lead to swelling or mold growth.

Note: For bathrooms or basements, MgO board is the safer choice.

3. Which material is more cost-effective?

Gypsum board is cheaper upfront, costing $0.50–$1.00 per square foot. MgO board costs more, around $1.50–$2.50 per square foot. However, MgO board lasts longer and requires fewer repairs, making it more cost-effective over time.

4. Which board is easier to install?

Gypsum board is lighter and easier to handle, making it simpler to install. MgO board is heavier but does not require extra finishing steps like taping or joint compound.

Tip: Choose gypsum board for quick, small projects and MgO board for long-term durability.

5. Are both boards environmentally friendly?

Both boards are eco-friendly, but MgO board has a lower environmental impact. It uses natural minerals and produces fewer emissions during manufacturing. Gypsum board can be recycled but may need more frequent replacement, increasing waste.

Reminder: For green building projects, MgO board is the better option.