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Composite insulation integrated board: an efficient integrated solution for building energy saving and decoration


Release time:

2023-12-08

As a new building material that integrates insulation, decoration, and protection, composite insulation panels, with their core advantage of providing a one-stop solution for exterior wall installation, have become a preferred solution for modern energy-saving renovations and new construction projects. They significantly simplify the construction process, balance energy-saving performance with decorative effects, and perfectly meet the current construction industry's multi-faceted demands for efficiency, environmental protection, and aesthetics.

As a new building material that integrates insulation, decoration, and protection, composite insulation panels, with their core advantage of providing a one-stop solution for exterior wall installation, have become a preferred solution for modern energy-saving renovations and new construction projects. They significantly simplify the construction process, balance energy-saving performance with decorative effects, and perfectly meet the current construction industry's multi-faceted demands for efficiency, environmental protection, and aesthetics.

I. Core Definition of Composite Insulation Panels

Composite insulation panels are prefabricated panels made through specialized production processes, combining multiple layers of materials—insulation, decorative, and adhesive/base layers—into a single panel. Their key feature is that they integrate the multiple steps of traditional exterior wall construction (insulation and decorative layers) into a single panel installation, enabling "factory prefabrication and on-site dry hanging/pasting." This fundamentally improves the efficiency and quality consistency of exterior wall projects.

A common composite structure is "decorative layer + insulation layer + backing layer":

  • Decorative layer: Commonly used finishes include fluorocarbon paint, natural stone paint, imitation stone texture, metallic paint, etc., providing a variety of aesthetic effects.
  • Insulation layer: Mainly used finishes include extruded polystyrene (XPS), polystyrene (EPS), polyurethane (PU), and rock wool, which determine the insulation performance.
  • Backing layer: Typically made of cement mortar board, calcium silicate board, or aluminum board, it enhances the overall strength of the board.

II. Core Advantages of Composite Insulation Panels

1. Integrated Functionality, Simplified Construction

Combining insulation, decoration, and protection, it eliminates the multiple steps of traditional exterior wall construction, including mesh hanging, plastering, insulation, and tiling/painting. Prefabricated panels require direct on-site installation, shortening the construction period by over 50%, significantly reducing labor costs and on-site management complexity.

2. Excellent Energy Savings, Compliant with Policy Directions

The insulation layer material and thickness can be customized to meet regional energy-saving standards. It offers low thermal conductivity and stable insulation performance. It effectively reduces building energy consumption and meets energy-saving requirements in different climate zones, making it a key material for achieving low-carbon emissions in buildings.

3. Highly Decorative and Diverse Styles

The decorative layer utilizes sophisticated technology to simulate various materials, including stone, tile, wood grain, and metal, offering a wide selection of colors and textures. It can be adapted to various architectural styles, including modern, neo-Chinese, and European, meeting the design requirements of various projects.

4. Stable Quality and High Durability

All processes are standardized in the factory, eliminating quality issues caused by on-site construction due to weather and manual labor. The decorative layer on the panel surface is highly weather-resistant, resistant to UV rays, aging, and impermeability, with a service life of up to 15-25 years.

5. Safe, Reliable, and Widely Adaptable

Adopting dry hanging or bonding and anchoring installation methods, it securely connects to the building structure and offers excellent wind and earthquake resistance. Furthermore, the panels' lightweight design (area density typically <50kg/㎡) places minimal load on the building's main structure, making them suitable for both new construction and energy-saving renovations of existing buildings.

III. Main Application Areas of Composite Insulation Panels

1. New Building Exterior Wall Projects

It is widely used for exterior wall decoration and insulation in various new buildings, including residences, office buildings, shopping malls, hotels, schools, and hospitals. It is particularly well-suited for large-scale real estate projects and public buildings that prioritize construction efficiency and aesthetic quality.

2. Existing Building Energy-Saving Renovation

It is an ideal material for exterior wall insulation and exterior renovations of existing buildings. It eliminates the need for large-scale demolition of existing walls and can be installed directly on the basement floor. This ensures that the building's interior remains operational during construction, resulting in efficient renovations and minimal disruption to residents.

3. Special Application Scenarios

Cold Chain Warehousing/Industrial Plants: Select polyurethane composite panels with high thermal insulation properties to meet the requirements of a constant temperature environment.

Stone-like Curtain Wall Replacement: Replacing natural stone with stone-like composite panels offers lighter weight, lower costs, and avoids the environmental issues associated with stone mining.

Interior Insulation and Decoration: Select composite panels with high fire resistance ratings (such as rock wool composite panels) can be used for interior partitions, cold storage interior walls, and other applications.

IV. Key Technical Parameters of Composite Insulated Panels

Projects Common Specification Range Key Impacts
Panel Thickness 30mm-120mm (Insulation Layer) The thicker the thickness, the stronger the insulation performance
Insulation Layer Material EPS/XPS/PU/Rock Wool EPS offers high cost-effectiveness, PU offers the best insulation, and Rock Wool offers excellent fire resistance
Decorative Layer Type Real Stone Paint / Fluorocarbon Paint / Imitation Stone Texture / Metallic Paint Determines appearance and weather resistance
Thermal Conductivity 0.024W/(m·K) - 0.040W/(m·K) The lower the value, the better the thermal insulation
Fire Rating B1 - A Rockwool composite panels can reach A, while the rest are mostly B1
Panel Dimensions Width 600-1200mm, Length 1200mm 1200-4000mm Customizable; oversized sizes require enhanced treatment.
Service Life 15-25 years Depends on coating material and operating environment.

V. Key Points for Selecting Composite Insulation Panels

1.Identify Core Requirements: Determine the insulation material and thickness based on the project's climate (high-insulation PU/XPS in the north, EPS in the south). Choose the decorative layer based on the architectural style and budget (fluorocarbon paint for high-end projects, natural stone paint for cost-effective projects).

2.Focus on safety indicators: Prioritize products with fire ratings that meet project requirements. Fire test reports are particularly important for high-rise buildings, and safety performance parameters such as wind load resistance and bond strength should be verified.

3.Select reputable manufacturers: Choose manufacturers with complete production qualifications, established production lines, and proven experience. Avoid purchasing non-standard products from small workshops. Require product test reports, construction plans, and after-sales service commitments.

4.Emphasis on the installation team: Composite panel installation requires high-quality workmanship, so select an experienced, professional installation team to ensure quality and subsequent safety.

Latest News

1. What causes scratches or color differences on the surface of aluminum panels? How can they be avoided?

Causes: ① Inadequate protection during transportation/installation, resulting in collisions and friction between panels; ② Differences in coating processes (such as spraying temperature and paint mixing ratio) between different batches of products. Solutions/Preventions: ① Wrap the products with pearl cotton and bubble wrap during transportation, and handle them gently while wearing gloves during installation; ② Clearly specify the "same batch production" requirement to the manufacturer, and verify the batch number upon receipt.

2025-11-04

2. The aluminum panel is labeled as "2.5mm thick", but the actual thickness is less than 2.5mm. Is this due to shoddy workmanship?

Not necessarily; it's important to distinguish between "substrate thickness" and "overall thickness": The industry-standard "thickness" usually refers to the substrate thickness (for the pure aluminum plate portion). The surface coating (such as fluorocarbon paint or polyester paint) thickness is approximately 0.02-0.05mm, which will result in the overall measurement value being slightly higher than the substrate thickness, but not lower.

2025-11-04

3. What should be done if aluminum panels deform or bulge after installation?

Causes: ① Excessive keel spacing (e.g., using keel spacing >1.2m for large-sized panels), resulting in uneven stress on the panels; ② Inappropriate panel selection (e.g., using a substrate <2.0mm thick for large outdoor spans); ③ Overtightening screws during installation, compressing the panels. Solutions: ① Modify the keel structure, reducing the spacing as recommended by the manufacturer (e.g., for 2.5mm thick panels, keel spacing ≤1.0m); ② Replace with thicker substrate panels that meet the size requirements; ③ Readjust screw tightness to ensure the panels naturally conform to the keel.

2025-11-04

4. What could be causing the aluminum panel exterior wall to leak during rainy weather? How can it be repaired?

Core causes: ① Aging or cracking of the sealant in the joints, or improper application (e.g., the sealant strip is not compacted, leaving gaps); ② Lack of waterproofing reinforcement at corners, window sills, and other joints. Repair methods: ① Remove the aged sealant and reapply weather-resistant silicone sealant (compliant with GB/T 14683 standard), ensuring the sealant joints are full and free of air bubbles; ② Apply waterproof membrane to corners, and slope the window sills outwards (slope ≥ 5°) to prevent water accumulation.

2025-11-04

5. Will aluminum panels rust over time? How should they be cleaned and maintained?

Rusting: The aluminum composite panel substrate is made of aluminum alloy, which forms a dense oxide film on the surface, making it resistant to rust. However, if the coating is damaged (e.g., scratches exposing the substrate), prolonged exposure to rain may cause localized corrosion, requiring timely repainting. Daily Maintenance: ① Clean with a neutral detergent and a soft cloth (e.g., diluted dish soap). Avoid using strong acids/alkalis (e.g., toilet cleaner) or steel wool to prevent damage to the coating. ② Inspect outdoor panels every 1-2 years and repair any coating damage or aging sealant promptly.

2025-11-04

6. How is the fire resistance of aluminum composite panels? Can they pass fire safety inspection?

The base material of aluminum single-panel panels (aluminum alloy) is a non-combustible material, and the surface coating (fluorocarbon paint, polyester paint) is mostly "fire-retardant B1 grade", which meets the fire protection requirements of most buildings (such as exterior walls and ceilings); Note: Some special locations (such as kitchens and electrical rooms) have higher fire protection requirements, requiring the customization of "fire-retardant coated aluminum single panels" from the manufacturer, and a fire protection test report must be provided.

2025-11-04

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