Roof Sandwich Panels

Your Professional Roof Sandwich Panels Supplier

Our goal is to become your true partner in the field of cold storage sandwich panels in China. Henan Panels Industry Co., Ltd. have 17 years of experience in sandwich panel production. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

Aluminum-magnesium-manganese Sandwich Panel

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Sandwich Roof Sheets

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Light-Transmitting Sheets

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PV Roof Sandwich Panel

The PV roof sandwich panel is integrated with the photovoltaic panel assembly, which can achieve a

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PU Roofing Sandwich Panel

The PU roofing sandwich panel has the functions of thermal insulation and waterproofing, a stable

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Rockwool Roof Panel

Polyurethane edge-sealed rockwool roof panels are energy-saving, environmentally friendly,

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PUR Roof Sandwich Panel

PUR roof sandwich panel has no harmful gas volatilization, is not corroded by microorganisms, has

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PUR Roof Panel

The finished PUR roof panel has excellent thermal insulation and sealing properties, and strong

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Aluminum Surface Insulation PU Sandwich Panel (Great Wall...

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Why Choose Us

Our certificates

Our company has obtained ISO9001 quality certification, CE and SGS certification, and obtained fire detection reports for various sandwich panels from the National Construction Engineering Quality Supervision and Inspection Center.

Our equipment

Henan Panels Industry Co.,Ltd has 2 set of Italian advanced PUMA polyurethane (rock wool) Fully automatic production lines, and it is equipped with 36-meter double-track unit, 6-component cyclopentane high-pressure online foaming technology and 4 decoilers.

Production market

Our products have been exported to more than 60 countries including the United States, Russia, Australia, New Zealand, the United Kingdom, France, Cambodia, Peru, Brazil, Cameroon, Congo, etc.

Our services

We provide CAD drawing design for the project. If the customer provides engineering drawings, our technicians will calculate the length and quantity of each sandwich panel, and draw the shape, size and quantity of all waterproof panels for customer confirmation. After receiving the goods, we provide technical installation guidance.

Advantages of Roof Sandwich Panels

Durability & long life

This is one of the biggest and most important advantages of sheet roofing panels. These panels are made up of high-quality materials designed to withstand harsh temperature conditions like strong winds, heavy rain, and extreme temperatures.

Energy efficiency

This is yet another benefit of the sandwich roofing panel. The panels are designed in such a way that they offer excellent insulation. This means they can keep the building warm during the winter months and cool in the summer months.

Water resistance

Sandwich panels are great water resistant. Therefore, they are an excellent choice for buildings located in areas that have high rainfall. These panels offer a water interlocking mechanism that helps prevent water from seeping through the roof.

Sound insulation

Along with excellent thermal insulation, sandwich sheet roofing panels are ideal for reducing sound transmission. This is because the insulation layer helps absorb sound waves, stopping them from passing through the roof and building.

Easy installation

Sandwich sheet roofing panels are very easy to install. This can save a lot of money on the roofing project. They are light in weight and can be easily handled by a small team of workers.

Low maintenance

Another crucial benefit of the sandwich roofing panels is they need little maintenance. They are made up of durable materials that can withstand harsh weather conditions.

Roof Sandwich Panels Specification

Suggested steel plate thickness	External steel plate:0.5-0.8mm Internal steel plate: 0.4-0.6mm
Steel plate coating	External steel plate:PVDF/HDP/SMP/PE Internal steel plate:SMP/PE
Flame retardant grade	A-level
Core material bulk density	100-180kg/m3
Thermal conductivity	≤0.042W/(M.K)
Noise reduction performance	≥37db(50mm)
Material stability	Has unparalleled chemical stability compared to organic materials
Suggest keeping regular colors	Pure white, white gray, blue, etc., steel plate colors can be customized according to customer needs.

Application of Roof Sandwich Panels

Industrial buildings

Due to the ruggedness of the sandwich panels, they are quite ideal for use in warehouses, factories, and manufacturing plants. The thermal insulation of such panels brings about control temperatures inside huge open areas while being comfortable and energy efficient.

Public access buildings

Fire safety is a top priority in public buildings such as schools, hospitals, and sports complexes.

Commercial and residential roof panels

Due to their energy efficiency, sandwich panels are also used in commercial properties such as offices and retail outlets, as well as in residential housing. Their ease of installation during construction also makes them ideal for most roofing projects.

Production Process of Roof Sandwich Panels

Continuous process

All used materials are processed together and the finished formed panel is cut to the desired length without stopping the line. This line has an average speed of about 14 meters per minute in the production of medium thickness panels (40-50 mm) with metal top layers.

Discontinuous process

The materials are processed separately, i.e. the face sheets are formed and cut to the desired length and then joined together in a press where the foam is injected. Besides, this process has lower productivity that cannot be compared to that of the continuous process. It is used today for products with shapes that do not allow the continuous process, or when the required production rate does not justify the investment in a continuous line.

Difference Between Wall Sandwich Panels and Roof Sandwich Panels

Profiling of external claddings

Roof and wall sandwich panels differ in the profiling of their facings. Wall panels usually have a smooth or slightly profiled facing, while roof panels have a trapezoidal profile. This arrangement makes the roof panels more durable and resistant to loads such as snow or wind.

Load resistance

Roof sandwich panels must be more resistant to loads resulting from weather conditions, such as snow, rain or strong wind. Therefore, a panel intended for roofing has a more solid structure, and roof sandwich panels are perfect for such conditions. Polyurethane foam panels or panels with a mineral wool core provide adequate insulation and durability.

Thermal insulation

Bothwall plates, and roofing can be made of different types of insulating cores. The panels often use a core of PIR foam or mineral wool, which provides better insulation.Wall panelscan have more diverse cores, depending on the needs of the project.

Packing and Shipping of Roof Sandwich Panels

Packing	Load-carrying wooden pallets and non-load polystyrene pallets (pack- age edge)
Shipping	Shipped by road, sea, rail

FAQ

Q: Can sandwich panels be installed by yourself?

A: The installation of sandwich panels is relatively simple, but it is recommended to use professional installation teams to ensure the highest quality of workmanship.Wall panelscan be installed both vertically and horizontally, whereas roof panels are always installed from the eaves to the ridge.

Q: What are the methods of attaching sandwich panels?

A: Sandwich panels can be attached using visible or hidden fixings. Visible fixing involves attaching the panels to the structure using screws that are visible on the external cladding. Hidden fixings are mainly used inwall panels, where the aesthetics of the facade is a priority.

Q: What tools are needed for assembly?

A: To install sandwich panels, you need basic construction tools, such as screwdrivers, levels and sheet metal cutting tools. It is important to use the right screws and gaskets to ensure the durability and tightness of the structure.

Q: What are sandwich panels made of?

A: Sandwich panels typically consist of an insulating core material, such as polyurethane (PU), polyisocyanurate (PIR), mineral wool, or expanded polystyrene (EPS), sandwiched between two facings made of metal, plastic, or other durable materials.

Q: How do sandwich panels improve energy efficiency?

A: The insulating core of sandwich panels significantly reduces heat transfer, maintaining stable indoor temperatures and reducing the need for heating and cooling. This results in lower energy consumption and utility bills.

Q: Can sandwich panels be customized for different applications?

A: Yes, sandwich panels can be customized in terms of core materials, facings, finishes, and dimensions to meet the specific requirements of various applications, including residential, commercial, and industrial buildings.

Q: Are sandwich panels fire-resistant?

A: Many sandwich panels are designed with fire-resistant core materials, such as mineral wool, which enhance their fire safety properties. This makes them a suitable choice for applications where fire resistance is critical.

Q: What are the benefits of using sandwich panels in construction?

A: Sandwich panels offer numerous benefits, including superior insulation, reduced construction times, design versatility, durability, and cost-effectiveness.

Q: How do sandwich panels contribute to green building practices?

A: Sandwich panels support green building practices through their insulation properties, which reduce energy consumption, and the use of sustainable materials and manufacturing processes.

As one of the most professional roof sandwich panels manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap roof sandwich panels for sale here from our factory.

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