Great Wall Large Panel Manufacturer Procurement and Quotation: Engineering Aluminum Thermal Insulation Energy Saving Selection Guide

In high-temperature summer environments, the thermal insulation performance of building exterior walls and decorative panels has become a core indicator in engineering design. Great Wall large panels, with their broken bridge thermal insulation structure, are widely used in curtain walls and decoration, becoming the preferred material for reducing building energy consumption. This article provides professional selection suggestions for purchasers from the perspectives of industry standards, material characteristics, and construction specifications.

Industry Background: Thermal Insulation and Energy Saving Become Engineering Necessities

With the implementation of the national standard "General Specification for Building Energy Conservation and Renewable Energy Utilization", new buildings must meet energy saving requirements of over 65%. Aluminum alloy large panels are widely used due to their light weight, high strength, and good weather resistance, but ordinary aluminum alloy has a high thermal conductivity (about 203 W/(m·K)), so broken bridge thermal insulation design is required. The mainstream solution is to inject PA66 nylon strips (thermal conductivity 0.3 W/(m·K)) into the profile to form a thermal break, reducing the overall heat transfer coefficient K value to 2.0-3.0 W/(m²·K), meeting the requirements of "Aluminum Alloy Windows and Doors" (GB/T 8478).

Material Characteristics: Key Parameters of Great Wall Large Panels

Great Wall large panels usually use 6063-T5 aluminum alloy, with a wall thickness of not less than 1.4mm (outdoor decoration) or 2.0mm (curtain wall structure). Surface treatment can be fluorocarbon spraying (three coats two bakes, film thickness ≥40μm) or powder spraying (film thickness ≥60μm), with weather resistance of more than 20 years. The thermal break strip material should be PA66+GF25, with tensile strength ≥80 MPa. In engineering procurement, it is necessary to confirm whether the profile cross-section design meets the "thermal barrier aluminum alloy profiles for building" (JG/T 175) standards for "crimped" or "poured" types.

Engineering Standards: Key Points for Compliance Verification

When purchasing Great Wall large panels, the following standards must be checked:
1. "Aluminum alloy building profiles" (GB/T 5237) Part 2: Anodizing profile film thickness AA15 grade;
2. Thermal break profiles must provide type inspection reports, including shear strength and transverse tensile strength (≥24 N/mm);
3. The thermal break strip must be "I" or "C" shaped, avoiding PVC substitutes (easy to age and deform).
Before construction, water spray tests and heat transfer coefficient tests should be conducted to ensure sealing and thermal insulation meet design values.

Selection Suggestions: Match According to Project Requirements

For different engineering scenarios, the following suggestions are made:
- Commercial curtain walls: Use crimped type thermal break Great Wall large panels, K value ≤2.5, paired with insulated glass (6Low-E+12A+6), whole window sound insulation ≥30dB.
- Industrial plants: Can use poured type profiles, more cost-effective, but pay attention to surface coating corrosion resistance.
- High-end residential: Recommend fluorocarbon spraying plus wood grain transfer, combining aesthetics and thermal insulation.
Foshan local direct supply manufacturers (such as 佛山市壹元建材科技有限公司) can provide customized cross-sections, reducing transportation losses and shortening construction period by over 15%.

Procurement Guide: How to Get Accurate Quotation

When inquiring, provide: drawing number, profile weight per meter, surface treatment requirements, order quantity (tons or meters). Great Wall large panel manufacturers usually quote in "yuan per ton", including processing fees and thermal break strip costs. 佛山市壹元建材科技有限公司 specializes in local engineering aluminum direct supply, providing free samples and technical support. To get the latest Great Wall large panel quotation, call 0757-66883689 or use the form below to submit requirements. We will reply within 2 hours.

Editor's note: The data in this article comes from "Aluminum alloy building profiles" GB/T 5237-2017 and manufacturer measured parameters, providing authoritative procurement reference.