MgO Fireproof Roofing Sheathing
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MgO Fireproof Roofing Sheathing

MgO Fireproof Roofing Sheathing

MgO Fireproof Roofing Sheathing, with its excellent fireproof performance and multiple advantages, has a broad application prospect in the field of roof protection for many buildings and plays an important role in ensuring the safety of the roof and the fire safety of the building.

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Product Introduction

 MgO Fireproof Roofing Sheathing

 

The MgO Fireproof Roofing Sheathing is usually a structural kit mainly made of magnesium oxide boards and used for fireproof protection on the roof. Generally, it is composed of multiple layers of magnesium oxide boards combined through specific splicing and fixing methods. Some may also be equipped with corresponding sealing materials, connecting fittings, etc., to ensure the tightness and stability of the overall structure, enabling it to better cover the roof and play its fireproof and related protective functions.

Advantages of MgO Fireproof Roofing Sheathing

1. High-grade Fireproof: Magnesium oxide boards themselves are non-combustible materials, and their fireproof rating can reach Class A1. This makes the roofing protective cover made of them not burn when facing a fire and can effectively prevent the fire from spreading upward, buying precious evacuation and rescue time for the roof structure and the interior of the building, and greatly reducing the damage caused by the fire to the entire building.

 

2. Heat Insulation for Fireproof: Besides being non-combustible, magnesium oxide boards also have certain heat insulation properties. In the event of a fire, they can delay the transfer of heat to the roof structural layer, preventing the roof structure from losing its strength quickly due to high temperature, further enhancing the overall fireproof protection effect on the roof and helping to maintain the integrity of the roof during the fire.

 

3. Waterproof and Moisture-proof: Through special treatment or reasonable structural design, the fireproof roofing protective cover made of magnesium oxide boards can have good waterproof and moisture-proof capabilities. For example, using sealant at the splicing joints for sealing treatment can effectively prevent rainwater, snow water, etc. from infiltrating into the interior of the roof, avoiding problems such as decay and mildew caused by long-term moisture on the roof that may affect the structure and service life, and ensuring the normal use function of the roof.

 

4. Strength and Stability: Magnesium oxide boards have relatively high strength. The roofing protective cover made of them can withstand certain external impacts, such as resisting the wind force in windy weather and occasional human trampling. Moreover, after installation and fixation, its structure has good stability and is not prone to loosening or displacement, providing long-term and reliable protection for the roof.

 

5. Corrosion Resistance: Under normal environmental conditions or even in some environments with slight chemical substance erosion (such as around industrial plants), the fireproof roofing protective cover made of magnesium oxide boards can maintain good performance. The main components such as magnesium oxide and magnesium chloride have relatively stable chemical properties and are not easily corroded, thus extending the service life of the roofing protective cover.

 

Our Company

 

We are a company dedicated to magnesia cement products. Our main products are Magnesium Oxide Boards (MGO Board) for construction and laminated MgO boards for furniture and renovation. Our mission is to provide the world's construction markets with environmentally friendly, high-performance and sustainable green materials.


We work with China Magnesium Materials Association (CMMA) and Magnesium Oxide Association (MOCA) in North America to raise awareness and promote the use of magnesium oxide cement products. We focus on the quality control and consistency of the MGO products. We have been actively involved in developing American Society for Testing and Materials (ASTM) standards related with MGO products.

氧化镁墙板

Magnesium Oxide Wallboard

Magnesium oxide wall board is a technologically advanced building material that offers superior performance in every category when compared to traditional wood, gypsum and cement based products.

氧化镁墙板

Magnesium Oxide Wall Panels

Magnesium Oxide Wall Panels are cementitious substrate products reinforced with magnesium oxide fibre matting.

防火 Mgo 墙板

Fireproof Mgo Wallboard

Fire resistant magnesium oxide wallboard is a new type of refractory material. It is widely used primarily as a wallboard alternative to conventional gypsum-based drywall and plywood.

防火板

Fire Resistant Board

It is non combustible and fire rated Class A1. With options for up to a 2 hour fire resistance, MgO Board offers an innovative passive fire protection alternative for your construction projects.

A1防火板

A1 Fire Resistant Board

MgO board has very good fire performance. It does not spread flames or smoke. It is noncombustible and fire-rated A1, which helps protect homeowners, tenants and building occupants while mitigating damage and loss.

不燃墙板

Non Combustible Wall Board

Magnesium oxide wall board is made of magnesium oxide, magnesium sulfate or magnesium chloride, glass fiber mesh, perlite and wood fiber.

防火墙板

Fireproof Wall Board

It is an upgraded product of fireboard. A properly constructed assembly with our MgO fireproof wall board can achieve a 3-hour fireproof rating.

防火内墙板

Fire Resistant Internal Wall Board

Our Fire Resistant Internal Wall Board is a fiberglass reinforced magnesium oxide cement board. It can be used to replace traditional gypsum drywall for wall and ceiling finishes and sheathing.

防火外墙板

Fireproof Exterior Wall Panels

Magnesium oxide board is a new type of fire-resistant building material. The main raw materials are magnesium oxide, magnesium chloride/sulfate and perlite.

 

Application Scenarios of MgO Fireproof Roofing Sheathing

1. Industrial Buildings: Industrial plants usually store a large number of raw materials, equipment, and products, etc., with high fire hazards. Moreover, the roof may face the erosion of industrial waste gas and chemical substances. The fireproof roofing protective cover made of magnesium oxide boards can well meet the requirements of fireproof and corrosion resistance, ensuring the safety and stability of the factory roof.

 

2. Commercial Buildings: In densely populated places such as shopping malls and supermarkets, the requirements for fire safety are extremely high. Using the fireproof roofing protective cover made of magnesium oxide boards can effectively prevent the fire from spreading in the event of a fire, providing a safety guarantee for personnel evacuation. Meanwhile, its good appearance and stability also help to maintain the overall aesthetics and functions of the building.

 

3. Public Buildings: Public buildings such as schools, hospitals, and libraries accommodate numerous people's learning, medical treatment, reading and other activities. In case of a fire, the consequences would be unimaginable. The fireproof roofing protective cover made of magnesium oxide boards can add a reliable fireproof barrier to the roofs of these buildings and improve the fire safety factor of the buildings.

 

4. Warehousing Buildings: Various warehouses are used to store different types of goods. Whether it is ordinary goods or some flammable and explosive items, fire prevention is of the utmost importance. The fireproof roofing protective cover made of magnesium oxide boards, with its excellent fireproof performance, has become one of the ideal choices for roof protection of warehousing buildings.

 

Installation Points of MgO Fireproof Roofing Sheathing

Fire Resistant Board

20211230-_XCC9734

20211230-_XCC9738

20211230-_XCC9739

Before installation, it is necessary to clean and level the roof base layer to ensure that the surface of the base layer is clean, free of debris, and without protrusions or depressions, so as to ensure that the magnesium oxide board roofing protective cover fits tightly after installation.

 

According to the size and shape of the roof, reasonably plan the laying sequence and splicing method of the magnesium oxide boards. Generally, using staggered splicing can enhance the overall tightness and stability. Meanwhile, use appropriate connecting parts (such as screws, rivets, etc.) to firmly fix the magnesium oxide boards on the roof base layer. Pay attention to ensuring that the fixing spacing meets the relevant standard requirements to avoid loosening.

 

At the splicing joints, edges and other parts, strictly apply sealant and other sealing materials according to the requirements to ensure that the waterproof performance of the entire roofing protective cover reaches the best state.

What is MgO Fireproof Roofing Sheathing Used For

 

 

1. Application Scenarios
It is widely used for roof protection of various industrial buildings, residential buildings, warehousing buildings, etc. It is especially suitable for places with high fire protection requirements, such as factories, warehouses, machine rooms, etc. Meanwhile, due to its relatively convenient installation, it is also favored in some existing building roof renovation projects.

 

2. Advantages
Compared with traditional roof sheathing materials, such as color steel plates, it has outstanding fire resistance. Compared with some organic polymer roof materials, it is environmentally friendly and has good durability. And in terms of cost, it usually has certain advantages. It can achieve good cost performance while ensuring the roof protection function.

 

 

FAQ

 

Q: What are the core components of MgO board roof sheathing?

A:It is a Class A non-combustible material. It does not burn or release toxic gases at high temperatures, effectively slowing down fire spread. It is particularly suitable for roofs of buildings in high fire-risk areas such as forest regions and chemical plants.

Q: Will it get damp and deform when used in humid or coastal areas?

A: It has excellent moisture resistance with a water absorption rate ≤12%. It is not prone to swelling or rotting in humid environments, and can resist erosion from rainwater and sea breezes, making it suitable for roofs in rainy or coastal areas.

Q: Can it withstand roof loads (e.g., snow, equipment)?

A: With a flexural strength of ≥12MPa and strong impact resistance, it can bear loads such as snow and roof equipment. It also has a low shrinkage rate (≤0.3%) and is not easy to crack or deform during long-term use.

Q: Is it lighter compared to wood or cement fiberboards?

A: Its inorganic composition contains no cellulose, making it naturally resistant to termites and mold. No additional chemical anti-corrosion treatments are needed, making it suitable for areas with high pest protection requirements.

Q: Is it susceptible to termite or mold infestation?

A: High-quality products, when installed properly, can last over 15 years. No special daily maintenance is needed-simply repair aging joint sealants or local damage promptly when noticed.

Q: Does its fire resistance meet building code requirements?

A: It is a Class A non-combustible material with a fire resistance limit typically ≥3 hours, far exceeding that of most exterior wall panels. It meets mandatory fire safety standards for high-rise buildings, shopping malls, and other venues.

Q: What types of building roofs is it suitable for?

A: It is widely applicable to residential, commercial, and industrial building roofs, especially in humid, snowy/rainy, or high fire-protection-required scenarios. It can serve as the base layer for decorative layers such as tiles and metal roofing.

Q: How compatible is it with insulation materials?

A:It has good compatibility and can be used in conjunction with common insulation materials such as rock wool and polystyrene boards to form an integrated "protection + insulation" system without affecting the performance of either.

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