
02 Jun Magnesium Oxide Board for Capsule House Sheathing
Table of Contents
Magnesium oxide board is strong, fireproof, and eco-friendly, making it an excellent choice for Capsule House Sheathing. It has an A1 fireproof rating, ensuring safety in fires. The board can withstand heat up to 800ºC without burning. Despite its lightweight nature, it is tough, with a density of 1.0-1.15 g/cm³, which makes it easy to carry and ideal for capsule house walls. Its ISO 9001 certification demonstrates that it meets top global standards. With a lifespan of over five years and available in thicknesses from 3-25mm, it is versatile for many building projects and perfect for modern homes.
Key Takeaways
Magnesium oxide board does not burn and is good for nature. It is a safe option for capsule houses.
This board keeps out water, so it won’t bend or break in wet weather like plywood does.
Magnesium oxide board lasts long and needs little care, saving money over time.
It is easy to install with simple tools, so DIY projects are possible.
Picking magnesium oxide board helps the planet and makes homes eco-friendly.
What is Magnesium Oxide Board?
Composition and Properties
Magnesium oxide board, or MgO board, is a strong building material. It is made from magnesium oxide, magnesium chloride, and fibers. This mix makes it tough, long-lasting, and lightweight. It works well for fireproof, water-resistant, and eco-friendly projects.
Here’s a simple look at its main features:
Property | Description |
---|---|
Fire Resistance | Great at stopping fire, good for fire-safe uses. |
Moisture Resistance | Better at handling water than gypsum or wood panels. |
Mechanical Strength | Strong under pressure and bending, good for structures. |
Durability Assessment | Tested for aging, weather effects, and long-term use. |
Environmental Impact | Made from green materials, helps with eco-friendly building. |
These features make MgO board a great pick for modern building needs.
Why It’s Ideal for Capsule House Sheathing
Capsule houses need materials that are light, strong, and simple to use. MgO board fits these needs perfectly. Its fireproof ability, tested by ASTM E136, keeps homes safe. Its Class A rating under ASTM E84 shows it spreads little fire and smoke, making it safer indoors.
Water resistance is also very important for capsule houses. Unlike plywood, MgO boards don’t warp or swell in wet weather. This makes them perfect for places with changing climates. They are also strong enough to handle heavy loads without breaking.
Choosing MgO board for capsule house walls means picking safety, strength, and eco-friendliness. It’s a smart option for today’s modular homes.
Benefits of Magnesium Oxide Board for Capsule House Sheathing

Durability and Longevity
Magnesium oxide boards are tough and last a long time. They resist dents, cracks, and other damage. This means fewer repairs and less money spent over time. These boards stay strong in busy areas and bad weather. They don’t burn, rot, or soak up water. Unlike wood, they don’t warp or break easily. This makes them perfect for capsule houses needing strong walls.
Eco-Friendliness
Magnesium oxide boards are better for the environment than regular materials. Making them uses less heat, which lowers pollution. Over time, they absorb carbon, helping the planet. They don’t have harmful chemicals, making homes safer inside. These boards are made from natural minerals and meet green building rules. They don’t need extra treatments to stop fire or mold. Choosing them helps the Earth and gives you a safe home.
Cost-Effectiveness
Magnesium oxide boards save money in the long run. They don’t need many repairs, so you spend less later. They are light and easy to install, cutting labor costs. They resist water and mold, so you don’t need extra coatings. While they cost more upfront, they save money over time. For capsule houses, they are a smart and affordable choice.
Installation Process for Capsule House Sheathing
Tools and Materials Needed
Before starting, gather all tools and materials. Being prepared makes the job easier and faster. Use this checklist to get ready:
Tools:
Measuring Tape: To measure boards and walls accurately.
Utility Knife or Circular Saw: For cutting boards to the right size.
Drill and Screws: To attach boards to the frame securely.
Level: To check if boards are straight and even.
Screwdriver: For tightening screws during installation.
Protective Gear: Wear goggles, gloves, and a mask for safety.
Materials:
Magnesium Oxide Boards: Pick the right thickness for your project.
Wood or Metal Framing: The base structure for attaching boards.
Sealant or Adhesive: To fill gaps and hold boards tightly.
Joint Tape: To cover seams and make surfaces smooth.
Tip: Check your tools and materials before starting to avoid delays.
Step-by-Step Installation Guide
Follow these steps to install magnesium oxide boards properly. This guide helps you get a strong and neat finish.
Prepare the Surface
Clean the frame to remove dirt and dust. Make sure it’s dry and clear of obstacles. A clean surface helps the boards stick better.Measure and Cut the Boards
Measure the wall sections with a tape. Mark the board with the measurements. Cut it using a knife or saw. Always wear safety gear to protect yourself.Position the First Board
Place the first board on the frame. Align it carefully so it’s straight and fits well. Use a level to check its position.Secure the Board
Drill screws into the board and frame. Keep screws about 12 inches apart. Don’t tighten screws too much to avoid breaking the board.Install Additional Boards
Repeat for the other boards. Leave a small gap (1/8 inch) between boards for expansion. Cover seams with joint tape for a smooth finish.Apply Sealant or Adhesive
Fill gaps and seams with sealant or adhesive. This step keeps water out and makes the sheathing weatherproof.Inspect Your Work
Check for loose screws, gaps, or uneven spots. Fix any issues to ensure the boards are secure and smooth.
Note: Installing correctly is key for strong and lasting sheathing. Take your time to do each step well.
Comparing Magnesium Oxide Board with Other Sheathing Materials

Magnesium Oxide Board vs. Plywood
Magnesium oxide board and plywood have big differences. Plywood is cheap and easy to use. But magnesium oxide board is better in tough conditions.
Fire Resistance: Plywood burns quickly, making it unsafe for fires. Magnesium oxide board has an A1 fireproof rating, keeping homes safer.
Moisture Resistance: Plywood warps and swells when wet. Magnesium oxide board stays strong and dry, even in humid weather.
Durability: Plywood cracks and breaks over time. Magnesium oxide board lasts longer and handles bad weather well.
Eco-Friendliness: Plywood needs trees, which harms the environment. Magnesium oxide board uses minerals, making it a greener option.
Tip: For stronger and longer-lasting sheathing, choose magnesium oxide board.
Magnesium Oxide Board vs. Fiber Cement
Fiber cement is another choice, but magnesium oxide board is easier to use. Fiber cement is heavy and harder to install, while magnesium oxide board is lightweight.
Feature | Magnesium Oxide Board | Fiber Cement |
---|---|---|
Weight | Light, simple to carry | Heavy, harder to move |
Fire Resistance | Great, doesn’t burn | Good, but less fireproof |
Moisture Resistance | Excellent, stays dry | Okay, absorbs some water |
Ease of Installation | Easy, basic tools needed | Harder, special tools may be needed |
Fiber cement is durable and fire-resistant but harder to work with. Magnesium oxide board is lighter and simpler, making it better for capsule houses.
Note: Magnesium oxide board is perfect for modular homes. It’s light, fireproof, and water-resistant.
Magnesium oxide board is a great choice for capsule houses. It lasts a long time and helps the environment. Its light weight makes it easy to install.
Why Choose MgO Board?
Use magnesium oxide board for your capsule house project. It’s strong, safe, and eco-friendly, perfect for modern modular homes.
FAQ
Why is magnesium oxide board fireproof?
It has minerals that don’t burn. These stop flames from spreading and handle high heat. Its A1 fireproof rating keeps homes safe during fires.
Can magnesium oxide board handle wet weather?
Yes, it’s great for humid places. It resists water, so it won’t swell, warp, or grow mold. It stays strong even in damp conditions.
Is magnesium oxide board good for indoor air?
Yes, it’s very safe. It doesn’t release bad chemicals or VOCs. This makes indoor air cleaner and healthier for capsule houses.
Is magnesium oxide board expensive compared to others?
It costs more at first but saves money later. It lasts longer, needs fewer repairs, and is light, making installation cheaper.
Can I install magnesium oxide board myself?
Yes, it’s simple to do. You only need basic tools like a drill, saw, and tape. Follow the steps to install it easily.
Tip: Wear gloves, goggles, and a mask for safety while working.