When selecting thermal insulation for your projects, it's crucial to consider factors like thermal performance, fire resistance, structural integrity, environmental conditions, and budget. Here’s a quick overview of the top sandwich panels and where they excel:
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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.
Advantages:
- Cost-effective and widely available
- Lightweight and easy to install
- Reasonable thermal insulation for general purposes
Disadvantages:
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- 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
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.
Generally speaking, the bonding strength of the polyurethane sandwich panel is not less than 0.09MPa, the sandwich panel combustion function is to B1 level, the sandwich panel deflection is Lo/200 (Lo for the distance between the support), the sandwich panel bending loading force is not less than 0.5Kn/m2.
The polyurethane sandwich panel sheet's effective width is mm, and the length can be customized.
Pengkou-type polyurethane sandwich panel has an effective width of 950mm, thickness of 50mm (scale), 75mm, 100mm, and 150mm, and length is not limited.
Polyurethane sandwich panel core material of rigid polyurethane foam heat resistance control is good; in the temperature below 120 ℃, volume and strength will not have significant changes, and When the density is 0.03kg/m3, the thermal conductivity is small, specifically 63J (15cal/m.h.k).
The effective covering width of the polyurethane roofing panel is mm, and the thickness of the exterior steel is 0.47mm.
The thickness of outer steel is 0.47-0.7mm.
The thickness of core material is 50mm, 60mm, 75mm, 80mm, 100mm, etc.
The panel types of polyurethane wall panels are small corrugated panels and pure flat panels.
Features:
The small corrugated panel integrates the three-dimensional sense and elegant decorative results in one; the wall light, chromaticity, and brightness with the angle of the millimeter light and the position of the different bright sunlight and dark stripes; the pure flat plate is a typical work of pure elegance, the wall light, chromaticity, brightness with the angle of the millimeter light and the position of the different unique visual changes.
The effective covering width of polyurethane wall panels is 500-mm, the thickness of exterior steel is 0.4-0.7mm, and the core material's thickness is 50mm, 75mm, 100mm, and so on.
Cold storage boards have a concave and convex groove layout, which improves the insulation airtightness at the joints and is specially deployed for cold storage rooms and warehouses. The boards are average and accessible, with good heat insulation and waterproofing functions. They are light in weight and have an attractive appearance.
Lightweight, beautiful appearance, effective treatment of cold storage industry temperature difference; in a particular module, the library body can be in the length, width, and height of the three directions to change at ease according to the need to expand or reduce. It can also be assembled board interrupted, off-site re-installation, installation is simple and fast.
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