How to Choose a Sandwich Panel Manufacturer: Key Criteria
Sandwich panels are widely used in the construction of industrial facilities, warehouses, retail buildings, cold storage rooms, hangars, administrative buildings, and other prefabricated structures.
The quality of sandwich panels directly affects the thermal insulation, durability, and appearance of a building.
There are many offers on the market, so before placing an order, it is important to choose the right sandwich panel manufacturer. Focusing only on the lowest price is not recommended — differences in metal quality, insulation, and production technology can significantly affect the service life of the building.
Let us consider the main parameters you should pay attention to.
1. In-house production
One of the main criteria is whether the company has its own production line.
A manufacturer can independently control:
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the quality of the metal used;
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insulation characteristics;
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adhesive application;
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geometry of the finished panel;
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quality of the locking system;
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product dimensions and thickness.
When buying directly from the manufacturer, it is also easier to order panels in non-standard lengths, select the required thickness, and purchase the exact amount of material needed for a specific project.
PanelCity is a sandwich panel manufacturer in Uzbekistan and produces panels for wall and roofing structures.
2. Pay attention to the insulation
The thermal insulation characteristics of sandwich panels depend greatly on the type of core material used.
Several options are most common.
Expanded polystyrene
Sandwich panels with expanded polystyrene are lightweight and affordable. They are often used for warehouses, small industrial premises, shops, pavilions, and other buildings.
Mineral wool and basalt wool
Mineral wool insulation is used when higher requirements are placed on fire safety and sound insulation.
Such panels are suitable for industrial, commercial, and warehouse facilities.
PUR and PIR
Polyurethane foam and polyisocyanurate foam have low thermal conductivity, which allows good thermal insulation to be achieved with a relatively small panel thickness.
These solutions are especially common in cold storage and freezer facilities.
The insulation should be selected according to the intended use of the building, temperature conditions, and project requirements.
3. Metal thickness
When comparing offers from different manufacturers, always check the thickness of the metal sheet.
Panels may look almost identical from the outside, but using excessively thin metal reduces rigidity and resistance to mechanical impact.
The manufacturer should provide the buyer with accurate information about the characteristics of the steel used.
The quality of galvanizing and polymer coating is also important, as these protect the metal against corrosion and weather exposure.
4. Quality of the locking system
Sandwich panels are joined together using a special locking system.
Its manufacturing accuracy affects:
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the tightness of panel connections;
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airtightness of the structure;
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installation speed;
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absence of gaps and thermal bridges;
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appearance of the finished facade.
Poor panel geometry or a low-quality lock can significantly complicate installation.
Therefore, before placing a large order, it is advisable to inspect a sample of the manufacturer’s product.
5. Ability to manufacture panels in required sizes
A good manufacturer should be able to produce panels according to project requirements.
You should clarify in advance:
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maximum and minimum panel length;
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available thicknesses;
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panel width;
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type of insulation;
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type of metal profiling;
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available colors.
Correctly selected panel length helps reduce the number of joints on the facade or roof and lower the consumption of additional materials.
6. Color and quality of polymer coating
Sandwich panels are available in various colors.
The international RAL color catalog is commonly used, allowing facade and roofing colors to be selected according to the architectural design.
When ordering a large quantity of material, it is preferable to purchase panels from the same production batch. This helps avoid slight color differences between different batches of metal.
7. Accessories and flashings
Purchasing sandwich panels alone is not enough for proper building construction.
Various accessories and shaped elements are also required for correct installation:
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external and internal corners;
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joint cover strips;
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ridge elements;
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plinth flashings;
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eaves flashings;
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drip flashings;
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connection elements;
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window and door trims.
It is better to choose a manufacturer that can supply not only sandwich panels but also the necessary accessories.
This makes it possible to match products in the same color and obtain a complete set of materials for the project.
PanelCity manufactures sandwich panels and accessories in both standard and custom sizes.
8. Production lead times
Before placing an order, be sure to clarify the actual production lead time.
This is especially important for large construction projects, where delays in panel delivery can stop further construction work.
A reliable manufacturer should provide an estimated production schedule in advance and agree on product delivery dates.
9. Assistance with material calculation
Before ordering, it is important to correctly determine the required amount of material.
The calculation should take into account:
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wall area;
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roof area;
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window and door dimensions;
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panel length;
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number of corners and connection points;
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required quantity of accessories.
A manufacturer with experience in different types of projects can help the customer calculate the required number of panels and accessories.
This helps reduce waste and avoid purchasing unnecessary materials.
10. Sandwich panel price
Price is an important factor, but offers should be compared correctly.
If one manufacturer offers a significantly lower price, you should clarify:
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metal sheet thickness;
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type and density of insulation;
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panel thickness;
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quality of protective coating;
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whether delivery is included in the price;
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what panel sizes are offered.
Sometimes a cheaper panel has different technical characteristics, so products with the same specifications should be compared.
What questions should you ask the manufacturer before ordering?
Before purchasing sandwich panels, it is recommended to clarify:
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What type of insulation is used?
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What is the thickness of the metal sheet?
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What panel thicknesses are available?
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What is the maximum panel length that can be produced?
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What RAL colors are available?
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Does the company manufacture both roof and wall panels?
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Can accessories be ordered?
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What is the production lead time?
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Is delivery available?
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Can the manufacturer provide consultation and material calculation?
The answers to these questions will help you objectively compare offers from several companies.
PanelCity sandwich panel manufacturer
PanelCity is a manufacturer of wall and roof sandwich panels in Tashkent and Uzbekistan.
The company manufactures panels with different types of insulation and produces accessories for the installation of wall and roofing structures.
Customers can select:
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sandwich panel type;
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required thickness;
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product length;
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color from the RAL catalog;
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necessary shaped and accessory elements.
Producing panels according to project dimensions helps optimize material consumption and simplify subsequent installation.
Conclusion
When choosing a sandwich panel manufacturer, it is important to consider more than just the product price. Pay attention to the quality of the metal and insulation, dimensional accuracy, locking system, product range, ability to manufacture accessories, and production lead times.
A reliable manufacturer should provide detailed information about product characteristics and help select the optimal solution for a specific construction project.
If you need sandwich panels in Tashkent or with delivery across Uzbekistan, PanelCity specialists can help you select the right type of panels, calculate the required amount of materials, and manufacture products according to your project requirements.
