WPC Outdoor Wall Panel

Project Case: 2nd Gen Co-extruded WPC Outdoor Decking for Hotel Garden Flooring System

Project Name

Central Garden Outdoor Decking System Renovation Project

Project Location  

Total Paving Area: Approximately 1,860 square meters

Products Applied

Product: 2nd Generation Co-extruded WPC Outdoor Decking (Round-Hole Hollow Profile)

Basic Specifications

· Profile dimensions: 150mm (width) × 25mm (thickness), standard length 2.9m

· Surface finish: 3D three-dimensional embossed wood grain + full-wrap co-extruded protective outer layer

· Color: Teak (dark brown natural wood grain finish)

· Installation system: 304 stainless steel hidden fasteners + anodized aluminum alloy support joists

Detailed Technical Parameters

1.Physical & Mechanical Properties

Base material density: 1.35 g/cm³

Static bending strength: ≥20 MPa

Modulus of elasticity: ≥1800 MPa

Charpy impact strength: ≥10 kJ/m²

24-hour water absorption rate: ≤0.5%

Linear thermal expansion coefficient: ≤2.0×10⁻⁵ /℃

Applicable temperature range: -40℃ to +60℃ 

2.Weathering & Durability Performance

UV resistance: Grade 4+ (1500-hour xenon lamp aging test, color fastness ≥ Grade 4 per GB/T 16259)

Slip resistance: Class R11 (compliant with DIN 51130); wet dynamic friction coefficient ≥ 0.6

Flame retardant rating: Class B1 (fire-retardant, meeting national building material fire safety standards)

Abrasion resistance: ≥6000 revolutions (commercial-grade surface wear resistance)

Expected service life: ≥20 years under normal outdoor conditions

3.Environmental & Safety Specifications

Material composition: 60% recycled wood fiber, 35% high-density HDPE polymer, 5% functional additives

Formaldehyde emission: Not detected (zero-formaldehyde formula, E0 grade)

Environmental compliance: Meets EU RoHS and REACH standards; 100% recyclable

No toxic heavy metals, no harmful VOC emissions under high-temperature exposure

Project Background & Client Requirements

Nestled beside Baiyun Mountain with premium mountain and lake landscape resources, Luhu Resort Hotel is positioned as a high-end ecological resort hotel on the outskirts of Guangzhou. The central garden was originally paved with traditional preservative-treated solid wood decking. After 6 years of operation, widespread problems including mold growth, cracking, warping and exposed nail heads emerged, which not only degraded guest experience but also created potential safety hazards.

The subtropical Lingnan climate, featuring high temperature, high humidity and a prolonged rainy season, accelerated the aging of solid wood materials, leading to continuously high annual maintenance costs for the hotel.

The client put forward three core demands:

Thoroughly resolve durability issues in humid environments, and achieve low-maintenance or even maintenance-free operation.

Retain a natural wood aesthetic to stay visually coordinated with the garden's overall ecological landscape.

Withstand high foot traffic, ensure slip safety and barefoot comfort, and cater to both family vacation and business leisure guest groups.

Application Scenarios

The WPC decking system covers six functional zones in the hotel's central garden, forming a unified outdoor paving system:

1. Main Entrance Welcome Walkway

Covering approximately 280 m², this area serves as the core circulation path from the main hotel building to the garden. The decking is laid in straight parallel rows with matching edge trims for smooth transition, guiding guests into the garden space. The wood grain texture naturally connects with the stone facade of the building, enhancing the sense of ceremony and premium quality at the entrance.

2. Central Lawn Leisure Platform

With an area of about 620 m², this circular leisure platform surrounds the central lawn, furnished with outdoor sofas, lounge chairs and mobile planters. The flat and spacious paving surface flexibly accommodates diversified events such as cocktail receptions, lawn weddings and brand activities, acting as the core activity zone of the hotel garden.

3. Poolside Wet Area

Covering approximately 410 m², the decking is paved around the outdoor infinity pool. The anti-slip texture of the co-extruded surface maintains a high friction coefficient even in wet conditions, effectively preventing slip accidents. The material itself is fully waterproof and non-absorbent, with no mold growth or expansion deformation after long-term contact with pool water, keeping the poolside clean and dry year-round.

4. Open-air Dining Bar Area

With an area of about 310 m², this outdoor dining zone on the west side of the garden hosts all-day breakfast, afternoon tea and evening barbecue service. The decking features excellent stain resistance: spills such as coffee, sauces and beverages can be wiped clean directly with water without penetrating or leaving permanent marks, greatly reducing daily cleaning workload for the catering area.

5.Forest Walking Boardwalk

Covering approximately 180 m², the boardwalk runs along the east side of the garden, winding through arbor and shrub landscape belts. The decking follows the natural terrain undulation while preserving native vegetation, allowing guests to immerse themselves in the forest atmosphere with a warm, comfortable underfoot walking experience.

6.Viewing Terrace Platform

With an area of about 60 m², this platform is located below the viewing pavilion at the highest point of the garden, offering a panoramic view of Luhu Lake. The decking connects seamlessly with the wooden pavilion structure, creating a unified visual effect and becoming one of the hotel's most popular photo spots.

Solution Highlights & Technical Advantages

Superior weather resistance adapted to Lingnan climate 

The 2nd generation co-extruded outer layer fully blocks moisture and ultraviolet radiation. It resists mold, cracking and fading in high-temperature, high-humidity environments, completely eliminating the aging pain points of traditional preservative-treated wood.

Hidden installation for enhanced safety 

The decking is fixed with 304 stainless steel hidden clips, leaving no exposed nail heads or burrs on the surface. It is safe and comfortable for guests to walk barefoot, making it especially suitable for family guests and poolside scenarios.

Eco-friendly and sustainable 

The product is composited with 60% recycled wood fiber and 35% polymer materials, with zero formaldehyde emission and full recyclability, aligning with the hotel's green and sustainable brand philosophy.

Optimized full life-cycle cost 

Daily maintenance only requires rinsing with clean water, with no need for repainting, sanding or anti-corrosion treatment. The annual maintenance cost is only 1/4 of that of traditional solid wood, delivering remarkable long-term economic benefits.

Project Outcomes

After the project was delivered and put into operation, the overall landscape quality of the hotel garden has been significantly improved. The average length of guest stay in outdoor areas has increased by about 40% compared with before the renovation, and outdoor catering revenue has also risen accordingly.

Feedback from the hotel engineering department shows that after the rainy season, no moss adhesion, deformation or arching has appeared on the decking surface, and cleaning and maintenance workload has been greatly reduced. This project has become a representative case of WPC paving for high-end hotel outdoor gardens in South China, providing a mature and referable solution for landscape upgrading of similar resort hotels.