MgO Sheathing Boards vs Traditional Materials for Modern Construction

mgo sheathing boards

MgO Sheathing Boards vs Traditional Materials for Modern Construction

In building today, materials affect safety, strength, and the environment. The use of MgO sheathing boards is becoming popular instead of plywood or gypsum. Why is this happening? New rules require fireproof materials for safer tall buildings. Studies show that MgO sheathing boards cut upkeep costs by 22% in places like hospitals. They also release less carbon, making them great for green projects. These changes show the need for better materials that are fire-safe, long-lasting, and eco-friendly.

Key Takeaways

  • MgO boards do not burn easily and handle heat well. This makes them safer than plywood or drywall.

  • They can lower repair costs by up to 22%. They resist water, mold, and damage better than older materials.

  • MgO boards are good for the planet. They create less carbon when made and can be recycled.

  • These boards can be used in many buildings like homes, schools, and hospitals. They are strong and safe.

  • MgO boards cost more at first but last longer. They need fewer repairs, making them a smart choice for building today.

Traditional Construction Materials Overview

Common Materials: Plywood, OSB, and Gypsum Board

When we talk about building materials, plywood, OSB, and drywall are common. These materials have been used for many years because they are easy to find and use.

Plywood is made by gluing thin wood layers together. This makes it strong and bendable, so it’s great for walls, floors, and roofs. OSB is made from wood pieces and glue. It costs less than plywood but works just as well. In fact, OSB is very popular in the U.S., making up 64% of sheathing sales. Drywall, also called gypsum board, has a gypsum center with paper on both sides. It’s mostly used for inside walls and ceilings.

These materials have helped shape construction today, but they do have some downsides.

Strengths and Weaknesses of Traditional Materials

Traditional materials like plywood, OSB, and drywall have many good points. They are cheap, simple to use, and easy to find. Plywood and OSB are strong, so they work well for holding weight. Drywall is light and fire-resistant, which makes it great for indoor spaces.

But these materials also have problems. Plywood and OSB can get damaged by water, causing them to warp or grow mold. Drywall, while fire-resistant, is not very strong and can break easily. Materials like plywood and OSB are also not as eco-friendly as newer options. A 2008 study showed that older materials like clay and straw, used in Turkish buildings, were better for the environment than modern ones.

As building needs change, these traditional materials might not be enough for new projects.

Understanding MgO Sheathing Boards

What Is a Magnesium Oxide Board?

A magnesium oxide board, or MgO board, is a modern building material. It is made from magnesium carbonate, which is heated and pressed. This process combines magnesium and oxygen to form magnesium oxide, a strong, stone-like substance. The magnesium oxide is ground into powder and mixed with water, salts, wood dust, and other materials to create sturdy boards. Most of the raw materials for MgO boards come from countries like China and Europe.

MgO boards are strong and useful in many ways. They do not burn, making them great for areas at risk of fire. They also stay stable under very high temperatures, which adds to their safety.

Component

Description

Source

Most magnesium carbonate comes from China and Europe.

Production Process

Magnesium and oxygen are heated and pressed to make MgO.

Characteristics

MgO becomes stone-like after heating.

Composition

Powdered MgO is mixed with water, salts, wood dust, and other materials to form boards.

Key Features of MgO Boards

MgO boards have many benefits compared to older materials. They are highly fire-resistant, lasting up to four hours in fire tests. Unlike wood or drywall, they do not catch fire or release harmful smoke. They also resist moisture, keeping their fireproof qualities even in wet conditions.

These boards are very durable. They do not grow mold, attract pests, or break down easily. They work well in both hot and cold weather. MgO boards are also better for the environment. They use less energy to make than concrete or drywall and do not release harmful chemicals.

Feature

MgO Boards

Traditional Materials

Fire Resistance Rating

Up to 4 hours; excellent fire safety

Wood and drywall need extra fireproofing

Combustibility

Non-combustible; safe for fire-prone areas

Wood burns and spreads fire easily

Thermal Stability

Stays strong in high heat

Lower stability in wood and gypsum

Moisture Resistance

High; stays fireproof in wet areas

Gypsum weakens with water; wood absorbs moisture

Eco-Friendliness

Green and non-toxic

Concrete and gypsum need more energy to make

Applications of MgO Sheathing Boards in Construction

MgO boards can be used in many types of buildings. They are good for homes and businesses. In houses, they are great for walls, ceilings, and floors. Their fireproof nature makes them perfect for kitchens and utility rooms.

In commercial buildings, MgO boards are used in places like hospitals, schools, and offices. They are strong and resist moisture, so they work well in busy areas. However, in very humid places, MgO boards may have problems. For example, in Denmark, high humidity caused water to collect on MgO boards. This led to mold and rust on metal parts.

Even with these issues, good-quality MgO boards are still a solid choice for most projects. Their strength and flexibility make them a valuable material for modern construction.

  • Common uses of MgO boards include:

    • Fireproof walls and ceilings.

    • Subfloors in wet areas.

    • Outer walls for weather protection.

    • Soundproofing in apartments or shared housing.

Performance Comparison: MgO Boards vs Traditional Materials

mgo panel modular house

Fire Safety and Resistance

MgO boards are much safer in fires than plywood or drywall. They do not burn or spread flames, making them non-combustible. In fire tests, MgO boards last up to four hours without damage. Traditional materials like wood burn fast, and gypsum needs extra fireproofing to work well.

MgO boards also produce very little smoke or harmful fumes during a fire. This helps keep the air cleaner and safer for people indoors. Wood, on the other hand, releases toxic smoke, which is dangerous. MgO boards stay strong in high heat, while gypsum weakens as it loses water.

Feature

MgO Board

Traditional Materials

Fire Resistance Rating

Up to 4 hours; excellent fire safety

Limited; often needs extra fireproofing

Combustibility

Non-combustible

Variable; wood is highly combustible

Smoke and Fume Emission

Very low

High; toxic smoke from wood

Thermal Stability

Retains strength under heat

Weakens or burns under high heat

Moisture and Mold Resistance

MgO boards handle moisture better than plywood or drywall. Plywood absorbs water and bends, while drywall weakens when wet. MgO boards stay strong and resist mold, even in damp areas. This makes them a good choice for wet or humid places.

However, in very humid climates, MgO boards can have problems. For example, in Denmark, poor installation caused water to collect on MgO boards. This led to mold and rust on nearby metal parts. Installing them correctly can stop these issues and keep them effective in wet areas.

Durability and Structural Strength

MgO boards are stronger and last longer than drywall or plywood. They resist water, mold, and fire, keeping their shape over time. Drywall can break from water, and plywood may bend or rot. Cement boards are tough but do not insulate as well as MgO boards.

MgO boards also hold up well under heavy loads, making them great for homes and businesses. They can handle tough conditions, making them a dependable choice for modern construction projects.

Cost Analysis

MgO boards cost more upfront than plywood or drywall. But they save money over time by lasting longer. These boards resist water, mold, and fire damage, so repairs are rare. Traditional materials often need fixing because they wear out faster.

MgO boards also save time during building projects. They are light and simple to install, speeding up work. Plywood and drywall need extra steps like waterproofing, which takes more time and money. The table below shows how MgO boards compare to traditional materials:

Aspect

MgO Sheathing Boards

Traditional Materials

Cost

Lower over time

Higher overall

Construction Time

Faster

Slower

Environmental Impact

Better

Worse

Reusability

Yes

No

Using MgO boards saves money and helps build faster and smarter.

Environmental Impact and Sustainability

MgO boards are better for the planet than plywood or drywall. Making them uses less energy, which helps the environment. For example, MagPanel® is known for being safe and eco-friendly.

These boards also release fewer harmful gases. They can be recycled, unlike many older materials, which reduces waste. Their strength means they last longer, so you don’t need to replace them often.

MgO boards are also healthier for indoor spaces. They don’t give off bad chemicals, making them safer for homes and offices. Choosing MgO boards helps the environment and creates safer, longer-lasting buildings.

Advantages of MgO Sheathing Boards in Modern Construction

Better Fire Safety

MgO boards are safer in fires than older materials. They don’t burn and meet strict fire rules like CAN/ULC S 114. These boards can last up to four hours in a fire. Wood burns fast, and gypsum gets weak in heat, but MgO stays strong.

MgO boards also make little smoke and no bad fumes during fires. This keeps the air cleaner and helps people escape safely. Whether for homes or businesses, MgO boards improve fire safety and protect buildings.

Grade

Use Type

Fire Safety Features

G Grade

Indoor use

Meets non-burning building rules

E Grade

Outdoor use

Handles weather with special coatings

FR Grade

Fire-resistant use

Works in fire-safe building designs

Useful for Homes and Businesses

MgO boards can be used in many ways. In homes, they work well for walls, ceilings, and floors in kitchens or bathrooms. They resist water, so they’re good for wet places. In schools, offices, and hospitals, MgO boards are strong and last long.

Examples show how flexible they are. In wildfire areas, MgO boards are used outside for fire safety and style. In schools, they handle daily wear while looking nice. They’re light, making them easy to move and install, saving time and effort.

Building Type

MgO Board Use

Benefits

Tall Homes

Outside walls in wildfire zones

Fire-safe, stylish, and secure for risky areas

Schools

Strong and fireproof walls

Durable, looks good, handles daily use

Offices

Smooth finish for walls and cladding

Nice design, fire protection, and comfort for workers

Saves Money Over Time

MgO boards cost more at first but save money later. They resist fire, water, and damage, so repairs are rare. This lowers upkeep costs over time.

MgO boards also make building faster. They’re light and simple to install, cutting labor costs. Plus, they’re eco-friendly, helping the planet while saving money. Choosing MgO boards is smart for both your wallet and the environment.

MgO boards last longer than older materials. They resist pests, rot, and bad weather, staying strong for years. Builders and homeowners pick MgO boards for their long-term value.

Real-World Uses of MgO Boards

MgO boards are used in many building projects. They are found in homes, schools, offices, and eco-friendly buildings. Their strength and flexibility make them a top choice today.

One example is using MgO Structural Insulated Panels (SIPs) in nearly Zero Energy Buildings (nZEB). These buildings use less energy but stay comfortable. A study compared MgO SIPs to older materials. It found that MgO SIPs are better for the environment when made and sourced locally. This shows their value in green construction.

Study Topic

Results

Environmental Impact Comparison

MgO SIPs in nZEB

Life cycle study of MgO SIPs vs. older materials

MgO SIPs have less environmental impact with local production.

In wildfire areas, MgO boards are used for outside walls. They resist fire, protecting homes from flames and heat. For instance, in California, people use MgO boards to keep their homes safe. These boards also make buildings look better.

In schools and hospitals, MgO boards are used for walls and ceilings. They stop mold and moisture, keeping indoor spaces healthier. They last a long time, cutting repair costs in busy places.

Whether for homes, businesses, or green buildings, MgO boards are helpful. Their real-world uses show they are safe, strong, and good for the planet.

Choosing MgO Sheathing Boards Over Traditional Materials

magnesium wall sheathing

When to Use MgO Boards

MgO boards work well in certain building situations. In wildfire areas, they are very fireproof. They don’t burn, making them safer for homes and businesses. In places with lots of rain or humidity, MgO boards resist water and mold. This helps them last longer.

For eco-friendly projects, MgO boards are a great choice. They produce less carbon than older materials, making them better for the planet. If you need strong materials, MgO boards are dependable. They hold heavy weight, resist pests, and stay strong over time.

You can use MgO boards in hospitals, schools, or homes. They are flexible and work for walls, ceilings, and even wet floors.

Things to Think About for Builders and Homeowners

When picking MgO boards, think about a few things. First, they are good for the environment. MgO boards are green and meet strict eco-building rules. They also resist fire and water, which makes buildings safer and easier to maintain.

Durability is another important point. MgO boards last longer than older materials, saving money over time. But they cost more at first. Even so, the long-term savings often make up for the higher price.

Here’s a table comparing MgO boards to older materials:

Key Point

MgO Boards

Older Materials

Eco-Friendliness

Low carbon, green choice

Higher carbon, less eco-friendly

Fire Safety

Very fireproof

Lower fire resistance

Water Resistance

Stops mold and mildew

Can get damaged by water

Strength

Very strong and long-lasting

Often weaker and less durable

Green Standards

Meets strict eco-building rules

May not meet all green standards

By thinking about these points, you can pick the best material for your project.

MgO boards work better than older materials in many ways. They handle fire, water, and mold much better than plywood or drywall. They last a long time and are made in eco-friendly ways, helping the planet.

Performance Metric

MgO Boards Range

Traditional Materials Comparison

Bending Strength (MPa)

6 – 23

Changes depending on material

Water Absorption (kg/m²s^0.5)

0.0023 – 0.0084

Changes depending on material

Water Permeability

5 of 6 passed

Changes depending on material

Crying Time (Months)

1 – 8

Not listed

Pick MgO boards for projects needing fire safety or water protection. They cost more at first but save money by lasting longer. For modern buildings, MgO boards are safe, strong, and very useful.

FAQ

Why are MgO boards better than older materials?

MgO boards are stronger and safer than older materials. They resist fire, water, and bad weather. Unlike plywood or drywall, they don’t burn or break when wet. They are also made in eco-friendly ways, making them great for modern buildings.

Are MgO boards safe to use indoors?

Yes, MgO boards are safe inside homes or buildings. They don’t give off harmful chemicals or bad fumes, even in fires. This makes them perfect for places like schools, hospitals, and houses. They help keep indoor air clean and healthy.

Can MgO boards handle tough weather?

MgO boards work well in extreme weather. They can handle heat, cold, and wet conditions. But in very humid places, they need to be installed properly to avoid problems like water buildup. When done right, they stay strong and dependable.

Are MgO boards worth the cost?

MgO boards cost more at first but save money later. They last longer and need fewer repairs. They are also light and easy to install, which saves time during construction. Over time, they are a smart choice for saving money.

Can MgO boards be reused?

Yes, MgO boards can be recycled. They are made from eco-friendly materials and can be reused in new projects. This helps reduce waste and makes them a good choice for green building projects.