25 Oct What is the Thermal Conductivity of the MgO Board?
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Maintaining a cozy indoor environment is HARD. But what if I told you that it’s way easier with MgO boards? It sounds insane, but there’s a proper science behind it.
MgO boards are construction materials with low thermal conductivity—typically 0.45 W/m/°C at room temperature. As the temperature increases, it drops, making them perfect for buildings prone to fire.
Hooked to know more about the thermal conductivity of MgO boards?
This blog post will discuss this feature in detail, which I’m sure you haven’t heard of before.
Let’s get into the topic without any delay.
Thermal Conductivity – Why Taken Seriously
Recall the Science chapters that were FUN to read, and thermal conductivity was one of them. Simply put, it’s the property of a material that shows its ability to pass heat through it.
But why it’s so important?
It’s a degree of measurement of how well a material supports or resists heat passing through it. It’s an essential criterion in building construction, and that’s why we’re discussing it here, too.
Here’s a question to consider: What are some factors that it depends on? Scroll down to get the answer to your question.
Factors that Influence Thermal Conductivity
As we understand, thermal conductivity is the body’s ability to allow heat to pass through it. The more heat it allows to pass, the better its conductivity. Now imagine the reverse and state it in comments (an opportunity to call yourself a scientist!)
Different factors contribute to the thermal conductivity of a material, and these are:
- Number of free electrons
- Temperature
- Density
- Moisture content
- Thickness of material
Besides structural characteristics, the environmental conditions impact the thermal conductivity.
Clear now?
Now that we understand the details of thermal conductivity, it’s time to relate it to MgO boards, our favorite building material.
Thermal Conductivity of MgO Boards
MgO boards have all the features and characteristics that make them a popular building material. The list goes on, from high heat resistance to moisture resistance and unmatchable strength.
Having said that,
MgO boards have a thermal conductivity coefficient of 0.216 W / mK. They are not affected by moisture, heat, or cold. This low thermal conductivity makes it an effective insulating and non-negotiable building material.
| MgO Board | Calcium Silicate Board | Gypsum Board | Details | |
| Density | 0.9—1.3 g/cm2 | 1.3—1.5 g/cm2 | 1.2—1.3 g/cm2 | The glass fiber in MgO board is cloth-like, which has low density and high strength, so it is light and strong. Calcium silicate board has short fibers, which means it is strong only with high density. |
| Impact Strength | ≥4.5KJ | ≥3.5KJ | ≤1KJ | The glass fiber in MgO board is cloth-like, which has more advantages in bending and impact resistance. The alkalic calcium silicate board will corrode the glass fiber and we can only use asbestos and pulp short fibers. |
| Bending Strength | ≥20MPa | ≥14MPa | ≤9MPa | |
| Thermal Conductivity | 0.64W/m2(W/m2·k) | 0.53W/m2(W/m2·k) | 0.61W/m2(W/m2·k) | All three kinds of boards are inorganic, and there is no significant difference in terms of thermal conductivity and thermal expansion. |
| Thermal Expansion | 2.6×10-7MM/C(MM/K) | 7.5×10-7MM/C(MM/K) | 6×10-7MM/C(MM/K) |
The table shows that MgO boards stand out as the most perfect material to use in buildings.
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Benefits of Low Thermal Conductivity
MgO boards have low thermal conductivity, which is excellent. But does this make them a good building material?
Efficient Insulation
YES, it helps. Find out the reasons why low thermal conductivity is beneficial during construction.
First, low thermal conductivity does not allow heat to pass quickly. So, MgO boards are good insulators. They reduce the heat flow between buildings’ exteriors and interiors.
This becomes quite handy in cold regions where the interior doesn’t get warm quickly.
It does help in:
- Reducing the cost of heating and cooling
- Provide a comfortable living environment
Thermal Stability
The low thermal conductivity of MgO boards provides thermal stability. No more worries about temperature fluctuation, as stability prevents thermal expansion and contraction. Moreover, it provides structural integrity to buildings, enhancing their durability.
Fire Resistance
The material’s low thermal conductivity also comes with fire-resistance properties. MgO boards are well-known for their exceptional fire resistance.
This ensures the safety of buildings and the people living in them.
Interested to know more about the fire-resistance properties of MgO boards? Check out this guide.
Noise Insulation
Following the previous point, MgO boards boast good noise insulation properties. The good acoustic insulation reduces noise pollution, creating a quiet and comfortable indoor environment.
Energy Efficiency and Environmental Impact
In addition, buildings made of thermally stable materials are energy efficient. MgO boards are sustainable alternatives to traditional building materials, and their energy efficiency reduces their carbon footprint throughout their life cycle.
Apart from these benefits, the thermal conductivity of MgO boards affects their impact strength and durability.
The low thermal conductivity helps MgO boards withstand harsh temperatures and maintain structural integrity, which could avoid cracking. Furthermore, the unique thermal conductivity of MgO boards makes them withstand high temperatures. Therefore, they have extensive fireproof applications.
By limiting heat transfer, MgO boards create a barrier that helps to protect structural components from fire damage, increasing durability in fire-prone environments.
Applications of MgO Boards
With all these outstanding benefits, MgO boards are widely popular building materials. They’re used in:
- Ceiling
- Flooring and sub-flooring
- Walling
- Under roofing
- Tilebacking
Due to their unique thermal conductivity value, MgO boards are handy for hospitals, offices, and educational institutes.
Where to Get the Best MgO Boards?
Are you intrigued by using MgO boards for construction? Well, we have an affordable and durable solution for you. At Sulfycor, we offer high-quality MgO boards in different sizes and shapes. Since all the materials are aligned with ISO guidelines, you don’t have to worry about quality.
Having 8+ years of experience in the industry, we’ve served clients in more than 20 countries.
Want to be the next satisfied client? Contact us by phone or social media for assistance.
Our door-to-door service is most popular among clients. And we’re sure you’ll LOVE it too.
In a Nutshell…
Having said that, we come to an end. It seems like MgO boards are overhyped, but the combination of features shows that this is correct.
MgO boards have low thermal conductivity, making them heat-resistant. In the long run, this helps maintain the internal temperature and achieve thermal stability. It also helps block sound, keeping a quiet and comfortable environment.
So why are you waiting? Get the best for your place with Sulfycor.