Metal Sandwich Panel
Minghua Steel Structure is a subsidiary of Cangzhou Junxing Minghua Steel Structure Co, Ltd, a professional company specializing in steel structure design, development, fabrication, processing, and installation of all kinds of steel structure projects. The company is located in Hebei Province, China, and covers an area of 28,000 square meters. Our new second factory, covering an area of 30,000 square meters, is under construction.
Our Advantages
Rich Production Experience
Our company is a professional steel structure manufacturer 17 years of production experience. Our annual output exceeds 50,000 tons, and our products are exported to more than 30 countries and regions.
Strong R&D Capabilities
Our company has professional design personnel, including several experienced structural engineers. We will design customized solutions for users based on customer requirements, usage, and local climate.
Technology First
Our company has advanced steel structure production equipment and technology, including a complete standardized product line, automatic submerged arc welding machines, bridge erecting machines, large intelligent bending machines, sandwich panel machines, and other large precision equipment to ensure the advancement of products.
Reliable Product Quality
After years of development and construction, our company has obtained certifications from the Ministry of Housing and Urban-Rural Development of the People's Republic of China, ACC, IAF, UKAS, BV, and other governments and organizations. ISO9001, ISO45001, ISO14001, and other certifications represent our strength.
A sandwich panel is a product used to clad the walls and roofs of buildings. Each panel comprises a core of thermoinsulating material, skinned on both sides with sheet metal. Sandwich panels are not structural materials but curtain materials.
Different Cores of Metal Sandwich Panel
Polyurethane (PUR)
Polyurethane is made using two major components: polyol and isocyanate. These, along with catalyst materials, form a rigid foam under immense pressure and specific production conditions. Polyurethane has high dimensional stability and does not absorb water. The mechanical properties are highly favorable owing to the high compressive strength.
Polyisocyanurate (PIR)
Polyisocyanurate forms when the main components of polyurethane react at different mixture quantities. The rigid foam formed has a higher fire resistance capacity compared to polyurethane. In the case of fire, the formation of smoke is comparatively lower.
Mineral Wool
Mineral wool is an ideal insulating material for buildings that require good sound insulation and fire resistance. This is made possible by the strong fibers in mineral wool that are made out of inorganic rocks and inorganic oxides at high temperatures. Buildings that deal with highly flammable substances will find the ideal and fitting choice will be to use mineral wool as an insulation material.
Benefits of Metal Sandwich Panel
Fast and Easy Installation
Contrary to the traditional systems, continuous line manufactured sandwich panels are fully compatible and ready to assemble pieces that are prepared in the required dimensions, insulation types and colors based on the structure of your facility, with engineering and quality control processes conducted beforehand at the factory. Installation of the sandwich panels is very easy with the few joints on wide surfaces. By means of advanced transport opportunities and mechanical lifting equipment, the duration of carrying and cladding is remarkably shortened. Therefore, your project is delivered in a short span of period, allowing you to save time.
Perfect Thermal Insulation
Thermal insulation means reducing the energy spent in winter for warming and in summer for cooling; and taking measures to prevent heat transmission with the objective to live in comfortable environments. Sandwich panel is a building material, which is very suitable for thermal insulation. Sandwich panel provides high thermal insulation by means of PUR, PIR, EPS, and Mineral Wool insulation materials. Thermal insulation with sandwich panels prevents problems such as mold and humidity resulting from heat movements and condensation, and ensures your building to be robust and long-lasting. Thickness of the insulation material in the sandwich panel varies according to the load bearing capacity, regional conditions, the usage purpose of the building, and the thermal insulation value.
Investment Economy
In many types of buildings, you can save up on both building and installation time by selecting the appropriate sandwich panel. Thanks to its feature of easy mounting, you can conduct expansion and renovation works without interrupting everyday activities in the building. Moreover, the panels are both economic and practical as they can be disassembled and reused. The lightness of sandwich panels allows you to gain advantage with regards to transport and main building costs. Also, their maintenance costs are low thanks to their durable structure. In brief, sandwich panel is both a fast and aesthetic solution and budget-friendly for its longevity.
Aesthetic Appearance of Your Buildings
The outlook of your building is just like the mirror of your dreams. That is why we add new ideas to our sandwich panels every day for the aesthetic of your buildings. You can enliven the outer walls of your building and obtain an aesthetic appearance with the sandwich panels designed in different colors and in a structure that enables them to be positioned horizontally, vertically or angular. Thanks to their feature to be used in the internal sections as well, you can create different designs with the sandwich panels.
High Fire Resistance
If you choose a sandwich panel fit for your building in terms of fire insulation, you will be able to slow down the spreading of fire within the building and its surroundings, and to ensure the safety of life and property in the building. While choosing sandwich panels for fire insulation, you should take into consideration the factors such as fire resistance and its duration, as well as the size and height of your building, and prefer sandwich panels with Mineral Wool or FM-approved PIR-cores.
Air and Water Tightness
Thanks to their perfect joint detail, our sandwich panels prevent air and water leakage. While they ensure the continuity of thermal insulation, heat is not lost at any point of your building. Therefore, you take the heating and cooling in your building under control and ensure energy efficiency. With a watertight structure, sandwich panels ensure active hydro-insulation against natural conditions such as snow and rain, and prevent humidity and mold. As they hinder corrosion on the load-bearing structures, they provide a healthy and comfortable environment in your building. Your building becomes stronger and more durable.
Application of Metal Sandwich Panel
Roofing and Wall Cladding
Sandwich panels are frequently used for roofing and wall cladding in industrial and commercial buildings. They provide excellent insulation and are quick and easy to install, making them a popular choice for large-scale construction projects.
Cold Storage Facilities
Sandwich panels are ideal for use in cold storage facilities, as they provide superior insulation properties that help to maintain a consistent temperature and prevent the loss of energy.
Cleanrooms
Sandwich panels are frequently used in the construction of cleanrooms, where a controlled environment is required. The panels offer excellent air-tightness and can be designed to meet specific cleanliness and hygiene requirements.
Residential Construction
Sandwich panels are becoming increasingly popular in residential construction, particularly for prefabricated homes. They offer excellent insulation and are easy to install, making them an attractive option for builders and homeowners alike.
Agricultural Buildings
Sandwich panels are often used in the construction of agricultural buildings, such as barns and sheds. They offer excellent insulation properties and can be designed to withstand harsh weather conditions.
Commercial/Industrial Buildings
Sandwich panels are commonly used in the construction of industrial buildings such as factories, warehouses, and distribution centers, where they provide excellent insulation and fire resistance.
Modular Buildings
Sandwich panels are often used in the construction of modular buildings such as prefabricated houses, offices, and classrooms. They can be easily transported and assembled on-site, offering a fast and cost-effective construction solution.
Partition Walls
Sandwich panels can be used as partition walls to divide large spaces into smaller rooms. They are easy to install, lightweight, and can be designed to meet specific fire resistance requirements.
Prefabricated Buildings
Sandwich panels are a popular material for prefabricated buildings as they are lightweight, easy to assemble, and offer excellent insulation properties.
Factors to Consider Before Choosing Metal Sandwich Panels
Purpose of the Building
Considering the use of the structure, a panel for both wall and ceiling will differ. For instance, office buildings require smoother panels in comparison to product warehouses. Thus, it's important to identify the purpose of the building before choosing an insulated panel as this will help determine the best material to choose. No one wants to risk their lives or have a structure that won't last because of using poor materials.
Technical Considerations
This refers to the factors affecting the safety of the construction. One of these is the features of the panel regarding load resistance on the roof. This is a crucial parameter for those living in areas with harsh winters. Another factor is wind resistance. For all buildings with a huge height or those on the coast, this too should be considered. For locations with hurricanes or other related phenomena, the panel to be used should be wind-resistant as well. Again, water tightness and major and secondary structures of the construction should be taken into account too.
Climate
The climate is a key determinant in choosing the panel to install in your building. For example, the coast has considerably salty air, so this aspect is vital to determine the type of paint to be used. If your residence is in a hot area, an insulating panel that's reflective is the best option. In addition, rain, snow, humidity, and wind need to be assessed to choose the best panel.
Insulation Features
The thermal feature is important and determined by the form core used, the material, and the thickness. For example, one can't use a similar panel for a cold warehouse and a furniture store. With this said, before picking a panel for one's building, it's crucial to consider the R-value. R-value refers to a rating that's used in defining the thermal resistance of a material per square inch. There are usually minimum fixed R-values for all new residences, and they vary among different jurisdictions. To lower energy bills, one is advised to set the R-value above the lowest specified value. To determine one's R-value, get a professional to provide it, which is usually after considering one's specification in mind.
Aesthetics
Aesthetics is a principal factor in architecture. The appealing effect of a building covers the combined aspects of a building's size, texture, shape, unity, color, balance, contrast, emphasis, space, symmetry, proportion, decoration, pattern, alignment, context, and culture. A building shouldn't only satisfy durability, safety, serviceability, but also aesthetics. Though peoples' needs vary, it's important to pick insulated panels that'll give your building a stylish and modern appearance.
Materials Used to Build Your Home
The materials used in constructing your residence pose a big impact on the thermal mass you'll be tackling. Materials like concrete and brick have the potential to store heat and release it slowly. Thus, the building material is a key factor to consider before picking an insulated panel. Again, one should also examine windows and doors. This is because double-glazed windows will result in saving huge amounts of heat in one's home.
Assembly of Metal Sandwich Panels
1.The Transporting of Panels to the Construction Site, and Unloading
● For packages up to 6 metres in length
The panels can be unloaded manually or with a forklift. It is recommended to use forklifts with adjustable fork width - the minimum fork spacing should be 2m with a width of 150mm.
● For packages exceeding 6 metres in length
Such packages should be lifted using conveyor belts and spreader booms. The indicated spacing of belts for packages from 6m to 12m is 2-4m. For packages longer than 12m, the spacing of transport belts is 3.5-4.5m.
Avoid point supports when unloading panels. Otherwise there is a risk of damaging the lining of the lowest panel.
2. Quality Control of the Completed Structure
Prior to the installation of panels, it is necessary to check whether the structure to which the sandwich panels will be fixed is straight. Even the slightest deviation in implementation can result in leaks occurring at the joints between panels, which produces the so-called “wave effect” (the panels are not on one plane).
3. Removal of the Protective Film
It is best to remove the film just before transporting the panel to the place of installation. It is not recommended to remove the foil after installing the panel.
4. Sealing
Before fixing the panel, attach strips of PES sealing tape. It is to be fixed to the structure in places where it will be in contact with the internal lining of sandwich panels. The use of seals effectively prevents from mechanical damage to the lining.
5. The Installation of Sandwich Panels
The safest and most-recommended assembly solution is the use of vacuum lifts for the transporting of panels. Install the first panel using fasteners penetrating the entire thickness of the panel, up to the construction element.
6. The Installation of Door Profiles, Window Profiles, and Skylights
The installation of door profiles and window profiles, i.e. windows, doors, gates, small windows, etc., requires a separate description.
All sandwich panels can be easily cut on site, using standard metalworking tools, for example:
● Jig-saws
● Reciprocal saws
● Nibblers
It is not allowed to use any high-temperature cutting tools, e.g. angle grinders. This could damage the anti-corrosion coating.
7. Assembling Subsequent Panels
When installing subsequent panels, it is very important to make sure that the panels are pressed down correctly, in order to ensure the maximum tightness of the fasteners. If pressed down correctly in the fasteners, panels completely eliminate the problem of so-called “thermal bridges”. The locations where panels are joined without any fasteners (e.g. a horizontal joint between one panel and another, on a column, or a joint between a wall panel and a roof panel), must be additionally sealed, for example with low-pressure polyurethane foam or butyl.
8. Masking Treatments
The last stage is the installation of masking treatments, e.g. joints, corners, wind braces, ridges, or plinths.
9. Attach Small Elements, e.g. a Company Logo, Lighting Elements, or a Monitoring System
The penal allows the installation of small components without the need for an additional substructure. However, in that case, the following recommendations should be followed:
● The maximum load exerted by the fastened elements is 10kg/m2.
● The fasteners must penetrate the whole panel (the core and both linings; it is absolutely prohibited to fix them only to one lining).
● Apply a washer with a minimum diameter of 40mm to the opposite side of the fastened element (it is necessary to distribute the loads over as much area as possible).
The structure's seals must be inspected to ensure that the designed level of air and vapour-tightness is maintained. Damaged or worn seals must always be replaced with new seals, using, for example a joint sealant that is suitable for the application. Old seals are to be removed when necessary and situation allows. The condition of the insulation material must also be monitored and replaced whenever necessary, for example if the insulation material has become wet.
The general condition and functioning of the panels and other structural parts must be monitored yearly. Regular inspections extend the service life of the panels. During the yearly inspections, attention must be paid to places where dirt and moisture accumulate. The existence of crevice corrosion must be checked when inspecting surfaced products.
When a need arises to replace panels or other structural parts, corresponding products must be used to replace them. A record must be kept of the maintenance work performed on the structures. Things to be recorded include the exact object of maintenance work, measures performed, the date, the person who performed the work and the supplies and materials used.
Fastenings of structural parts must be inspected in connection with the maintenance. The condition of the fastenings is best inspected by unscrewing some of them in different parts of the building. Special attention should be paid on the appearance of fasteners and the condition of the seal under the screw head. This way can be confirmed that the water have been prevent from entering the joints. Damaged or worn fasteners must be replaced.
Ultimate FAQ Guide to Metal Sandwich Panel
We're well-known as one of the leading metal sandwich panel manufacturers and suppliers in China. If you're going to buy high quality metal sandwich panel, welcome to get more information from our factory. Also, customized service is available.
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