4 Advice to Choose a Thermal Insulation Carved Metal Composite Sandwich Panels

Many sandwich panels are optimized for a specific application, such as roofing or cladding. However, you must ensure they meet local regulations and are suitable for your building. Here are the two most common applications and key considerations:

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Facade sandwich panels provide thermal insulation for the buildings exterior while shielding it from various weather conditions. Keep in mind that fire safety requirements are often stricter for taller buildings.

Roof sandwich panels must adhere to the aforementioned criteria while also taking into account variables such as roof pitch and roof loads which may include snow accumulation, maintenance equipment, and personnel. Some roof sandwich panels feature profiles that mimic traditional roofs, with tile patterns, a standing seam, or a corrugated design.

Sandwich panels can also be used for walls, partition walls, soffits, and doors. Your specific needs may influence the material and finish you choose.

When selecting thermal insulation for your projects, it's crucial to consider factors like thermal performance, fire resistance, structural integrity, environmental conditions, and budget. Heres a quick overview of the top sandwich panels and where they excel:

1. Polyurethane (PUR) Sandwich Panels

   Thermal Performance: PUR panels offer excellent thermal insulation with a low thermal conductivity range of approximately 0.022-0.028 W/m·K.

   Ideal Applications: These panels are suitable for environments requiring superior insulation, such as cold storage facilities, food processing plants, and industrial buildings where temperature control is critical.

   Advantages:

     - High insulation efficiency

     - Lightweight and easy to handle

     - Good structural strength

   Disadvantages:

     - Limited fire resistance, making them less ideal for buildings with strict fire safety requirements.

2. Polyisocyanurate (PIR) Sandwich Panels

   Thermal Performance: PIR panels offer enhanced thermal performance with a thermal conductivity of around 0.020-0.026 W/m·K, making them one of the most efficient insulation options available.

   Ideal Applications: These panels are commonly used in industrial and commercial buildings, especially where both high insulation and improved fire resistance are required.

   Advantages:

     - Superior fire resistance compared to PUR panels

     - High thermal efficiency, leading to better energy savings

     - Lightweight and structurally sound

   Disadvantages:

     - Higher cost compared to PUR panels, though the added fire resistance and efficiency may justify the investment.

3. Mineral Wool (Rockwool) Sandwich Panels

   Thermal Performance: With a thermal conductivity of about 0.037-0.045 W/m·K, mineral wool panels provide good insulation while excelling in fire resistance and sound insulation.

   Ideal Applications: Best suited for industrial facilities, commercial buildings, and areas with stringent fire safety regulations.

   Advantages:

     - Exceptional fire resistance (non-combustible)

     - Excellent acoustic insulation

     - High durability and resistance to environmental factors

   Disadvantages:

     - Heavier than PUR and PIR panels, which may require stronger structural support

     - Generally more expensive due to the superior fire and sound insulation properties.

4. Expanded Polystyrene (EPS) Sandwich Panels

Thermal Performance: EPS panels provide adequate insulation with a thermal conductivity of around 0.032-0.038 W/m·K, offering a cost-effective solution for many applications.

Ideal Applications: Suitable for residential buildings, warehouses, and industrial facilities where cost efficiency is a primary concern.

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   Advantages:

     - Cost-effective and widely available

     - Lightweight and easy to install

     - Reasonable thermal insulation for general purposes

   Disadvantages:

     - Lower fire resistance compared to PIR and mineral wool panels

     - May require additional fire protection measures in certain applications.

5. Vacuum Insulated Panels (VIP)

Thermal Performance: VIPs provide the highest thermal insulation efficiency with thermal conductivity as low as 0.003-0.008 W/m·K, making them ideal for applications where space is limited, and maximum insulation is needed.

Ideal Applications: Best suited for high-performance buildings, cold storage, and other environments where minimal space is available for insulation materials.

   Advantages:

     - Unmatched insulation efficiency, allowing for thinner panels

     - Space-saving design, ideal for tight spaces

   Disadvantages:

     - High cost, often limiting their use to specialized applications

     - Sensitive to punctures, which can compromise insulation performance

     - More complex installation requirements.

6. Fiberglass Core Sandwich Panels

Thermal Performance: These panels offer moderate insulation with thermal conductivity around 0.035-0.040 W/m·K, and are particularly useful in environments with high humidity or exposure to chemicals.

Ideal Applications: Often used in industrial buildings, chemical plants, and environments requiring resistance to moisture and chemicals.

Advantages:

     - Resistant to moisture, chemicals, and mildew

     - Good fire resistance

     - Decent thermal insulation and soundproofing properties

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  Disadvantages:

     - Heavier than PUR and PIR panels

     - Less thermally efficient than other insulation materials.

Key Considerations When Choosing the Best Sandwich Panel:

1. Thermal Performance: For projects where energy efficiency and high insulation are critical, PIR or VIP panels are top choices due to their superior thermal properties.

2. Fire Resistance: In buildings with strict fire safety requirements, mineral wool panels are preferred due to their non-combustible nature and excellent fire resistance.

3. Cost: EPS panels provide a budget-friendly solution with reasonable insulation, though PIR panels offer a better balance of cost and performance if fire resistance is also a priority.

4. Weight and Structural Considerations: Lightweight panels like PUR and EPS are easier to handle and install, while heavier options like mineral wool may require stronger structural support.

5. Durability and Environmental Resistance: For environments exposed to moisture, chemicals, or extreme conditions, fiberglass or mineral wool panels are ideal for their durability and resistance to environmental factors.

Conclusion

PIR sandwich panels are often considered the best overall option due to their excellent balance of thermal insulation, fire resistance, and durability, making them suitable for a wide range of industrial and commercial applications. However, the choice of panel should be based on the specific needs of your project, considering all factors like insulation performance, fire safety, cost, and environmental conditions.

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What is sandwich panels?Why should i use them?How to install them?Which kind of product is cost effective?Where can i get the best quality?This particle will tell you everything about sandwich panels.

What is a sandwich panel?

Sandwich panel is a product used to clad the walls and roofs of buildings.The sandwich panel is not load-bearing structure of a building but cladding material.The load-bearing structure of a building is support by steel framework structure.

Sandwich panel contains 3 layers:surface layer,core layer and bottom layer.The surface layer uses color steel,core layer is the main material of panel,include:PU (PIR,polyurethane or polyisocyanurate) ,glass wool,rock wool,EPS(expanded polystyrene),etc.The bottom layer could be color steel,stainless steel,etc.The types of sandwich panel are generally classified by core material. 

The materials mainly vary in their thermal insulating performance, sound insulating performance, reaction to fire and weight.

Why should i use them?

Compare with traditional brick structure building,building built of sandwich panels has 3 advantages in these field:cost,time,performance.

1.Costs

Construction of a building in either technology requires similar capital expenditure levels. 

The comparison in this area includes the costs of construction materials, labour and shipping.

2.Time

A building based on a traditional masonry process may take 6 to 8 months to complete. 

A building of the same volume using steel framework structure takes just 1-2 months to complete.

There is a verb saying:Time is MONEY!!! The sooner a production building or warehouse is commissioned for use, the sooner a return on the investment can be achieved.

Steel framework structure buildings are assembled rather than 'built'.Once the components arrive on site, and are then assembled like a house of toy bricks.Another plus is that there is no need to wait for the building shell to lose excess moisture.

3.Performance 

In some sectors of industry, the construction requirements can be critical for a building project. Steel framework structure buildings is a 'dry process', with no water needed for the construction materials. A dry process requires only the assembly of the structure and fixing of the cladding (here, the sandwich panels) with screws.

Traditional masonry construction uses 'wet processes', which require significant amounts of water to make the mortar for bricklaying, concrete for casting or the plaster for rendering.

Some sectors of industry, like wood processing or pharmaceutical manufacture, require fixed and controlled relative humidity levels, which preclude wet construction processes.

How to install sandwich panels?

How are sandwich panels installed as a wall or a roof?

Sandwich panels are easy and quick to install. From practical experience, installing 600 m2 of sandwich panels takes approximately 8 hours for a proficient construction crew.

The steps to install wall and roof sandwich panels are as follows:

1. Material preparation: include sandwich panels, the sub-frame components (cold-formed shapes), and accessories (including flashing, fasteners, gaskets, seals, etc.). BRD New Material can provide all the components required to complete the installation process.

2. Assembling the sub-frame,installing the beams,posts,and purlines.

3. Remove the protective film from the sandwich panels.

4. Fastened the sandwich panels to the sub-frame structure with suitable fasteners.

5. Sealing the joints and installing the flashing.

Given the short installation time and large unit coverage, sandwich panels are most popular in constructing:

Warehouse buildings

Logistic hubs

Sports facilities

Cold stores and freezers

Shopping malls

Manufacturing buildings

Office buildings

Sandwich panels can be combined with other structural solutions.

Which kind of product is cost effective?

The cost of purchase depends on the overall product thickness and its heat insulation core material. Usually the EPS core is the cheapest, however, for better long-term performance and cost effectiveness, panels with superior thermal conductivity coefficient are a better choice - such as PU sandwich panels.

Where can i get the best quality?

It is best to order your sandwich panels directly from the manufacturer or through their distribution chain. You can visit BRD New Material's website for professional advice concerning the best processes and materials. Having examined your requirements, the sales manager can quickly supply you with a custom quote. Customer care by the sales manager aside, you can get support from BRD New Material's design engineers or technical consultants at every stage of project delivery.

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