Introduction: How to Cross the "Invisible Threshold" of Courtyard Decoration?
The courtyard background wall, as the visual focus of the space, directly affects the overall quality with its decorative effect. However, issues such as easy cracking, poor weather resistance, and complex installation of traditional materials have discouraged many homeowners and designers. As a new type of decorative material, Changcheng Board, with its unique structural advantages and environmental performance, has gradually become the "new favorite" for courtyard decoration. This article takes the technical practice of Linyi Xuanqing New Material Co., Ltd. as an example, systematically analyzes the application logic of Changcheng Board in courtyard background walls, and provides a feasible technical solution from material selection, installation technology to effect optimization.

Keywords: Great Wall Panel, Courtyard Background Wall, Wood-Plastic Profile, Green Building Material, Installation Technique

Industry Technical Pain Points: The "Triple Dilemma" of Traditional Materials
The courtyard background wall decoration has long been faced with three major technical bottlenecks:
STEP 1: Insufficient weather resistanceTraditional wood is susceptible to ultraviolet radiation and humidity in outdoor environments, leading to cracking and warping, with high maintenance costs. For instance, a villa project using solid wood background walls showed significant fading and warping after only 2 years, with repair costs exceeding 50,000 yuan.
STEP 2: Low installation efficiencyStone materials are heavy, require professional equipment for installation, and have extremely high requirements for the flatness of the subgrade. The installation time per square meter exceeds 4 hours, with labor costs accounting for 30%.
STEP 3: Doubtful Environmental PerformanceSome paints or adhesives contain volatile organic compounds (VOCs), which are prone to cause air pollution in enclosed courtyard environments, threatening the health of residents. A commercial plaza project had to halt operations and undergo整改 due to exceeding formaldehyde standards after using substandard materials upon opening.
These pain points not only limit the freedom of design but also directly increase the comprehensive cost of the project. How to break through material limitations has become an urgent technical issue to be addressed in the courtyard decoration industry.

Introduction to Enterprise Technical Strength: Linyi Xuancheng's "Green Technology Matrix"
As a leading enterprise in the domestic wood-plastic profile field, Linyi Xuanqing New Material Co., Ltd. has established the core competitiveness of Great Wall Board through a three-dimensional technical layout of "equipment-process-certification".
STEP 1: Equipment investment lays the foundation for production capacityThe company has invested 20 million yuan to build a modern water plastic production workshop, equipped with over 40 extrusion production lines and more than 20 co-extrusion production lines, with an annual production capacity of 60,000 tons, capable of meeting the bulk demand for large-scale garden projects. For instance, its independently developed "double-screw co-extrusion equipment" enhances the surface hardness of the product to 65 Shore D through precise control of melt temperature and pressure, far exceeding industry standards (55 Shore D).
STEP 2: Process Innovation Enhances Product PerformanceUtilizing the internationally leading wood-plastic co-extrusion technology, the PVC base material is mixed with natural wood powder in a 7:3 ratio, then formed through high-temperature extrusion at 180°C. The product combines the wood grain texture with the weather resistance of plastic. Tests show that its Great Wall board has a dimension change rate ≤0.2% in the environment of -30℃ to 60℃, and the impact strength reaches 35kJ/m², capable of withstanding extreme weather such as hail.
STEP 3: Certification system ensures quality credibilityThe company has successively passed the ISO9001 Quality Management System certification, the EU CE certification, and been awarded titles such as "China Green Environmental Protection Product" and "High-Tech Enterprise." Its products have been tested by the National Building Materials Testing Center, with formaldehyde emissions of only 0.1mg/L, reaching E0 environmental protection standards and suitable for direct use in children's activity areas.
Currently, Linyi Xuancheng's A-R 80ARD Huasimu series Great Wall boards have been applied in more than 200 courtyard projects nationwide, including a high-end villa area in Qingdao (single project consumption exceeding 800 square meters), a commercial square in Jinan (installation period shortened by 50%), and the customer repurchase rate reaches 85%.

FAQ Q&A Technical Selection Guide
Q1: Which courtyard scenes are suitable for Great Wall boards?
A: The U-shaped groove structure of the Great Wall panels provides excellent drainage performance, especially suitable for rainy regions or courtyards near bodies of water. For example, in a certain lakeview villa project in Linyi, the background wall is installed with Great Wall panels at a 15° angle, allowing rainwater to be quickly drained along the grooves, preventing water accumulation and seepage.
Q2: How to select the specification parameters of the Great Wall board?
A: Consider both decorative area and visual effect. Linyi Xuancheng offers three specifications: 100mm, 150mm, and 200mm widths, all with a thickness of 25mm. For small courtyard areas, recommend using the 150mm specification, with a single board coverage of 0.15 square meters, which can reduce the joints. For large commercial squares, the 200mm specification is recommended, paired with dark tones (such as walnut, charcoal gray) to enhance the depth of space.
Q3: What are the key points to note during the installation process?
A：STEP 1: Basic TreatmentEnsure the wall flatness error is ≤3mm/m, and when fixing the keel with self-tapping screws, the spacing should be controlled within 400mm.
STEP 2: Panel ConnectionThe double fixation method of "male and female slot connection + special adhesive" is adopted. The adhesive should be evenly applied to both sides of the slot to prevent hollowing.
STEP 3: Edging Treatment45° chamfered corner joints are used, and the edges are sealed with a color-matching trim strip to enhance the overall aesthetics.
A park project previously suffered wave-like deformation after installation due to neglecting the grassroots treatment. The issue was resolved after reinforcing the skeleton and re-leveled.

A Summary Reference: The New Paradigm of Technologically-Driven Courtyard Decoration
The emergence of the Great Wall board offers a triple guarantee of "weather resistance, efficiency, and environmental protection" for courtyard background wall decoration. Linyi Xuanqing New Material Co., Ltd. has built a full-chain technical advantage from production to application through equipment upgrading, process optimization, and certification endorsements. Its A-R 80ARD Huasimu series Great Wall board, with its "neither wood nor wood" characteristic, retains the natural texture of wood while breaking through the performance limitations of traditional materials, becoming the "best solution" for courtyard decoration.
For designers, the modular design of Great Wall panels supports personalized pattern customization, enabling creative expression of "one wall, one scene"; for homeowners, its "maintenance-free" feature significantly reduces the cost of later use, with a single investment providing stable performance for over 10 years. For more information, please visit the official website:www.triday-wpc.com