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Composite Cladding & WPC Composite Siding for Exterior Walls

Composite cladding, also known as WPC composite siding, is a modern exterior wall cladding solution designed to provide durability, weather resistance and low maintenance for outdoor applications. It is widely used as an alternative to traditional wood siding on residential and commercial buildings.
This page explains what composite cladding is, how it is made, where it is used, and how it compares to other exterior wall cladding materials.

What Is Composite Cladding and Composite Siding?


Composite cladding, also called composite siding, is an exterior wall cladding system made from wood plastic composite (WPC). It combines wood fibres and thermoplastic materials to create a durable, low-maintenance alternative to traditional wood siding for exterior walls.

Composite cladding is designed to replicate the appearance of natural wood while improving resistance to moisture, insects and weathering, making it suitable for long-term outdoor use.

 

What Is WPC Composite Cladding Made Of?


WPC composite cladding is manufactured from a mixture of wood fibres and plastic polymers, typically using an extrusion process. This combination produces a uniform and stable material with consistent performance characteristics.

The wood fibres provide a natural texture and appearance, while the plastic component improves water resistance, durability and dimensional stability. As a result, WPC composite cladding performs better than solid timber in many exterior environments.

Because of its engineered structure, composite cladding is less prone to cracking, splitting or warping caused by moisture and temperature changes.

Why Choose WPC Composite Cladding for Exterior Walls?

 

Low Maintenance Compared to Wood Siding

Composite cladding does not require regular painting, staining or sealing. Routine cleaning with water is usually sufficient to maintain its appearance.​​​​​​​​​​​​​​
Waterproof and Weather Waterproof and Weather Waterproof​​​​​​​
Designed for outdoor use, composite cladding resists moisture absorption and performs well in wet or humid conditions.​​​​​​​
Resistant to Rot, Termites Decay-resistant​​​​​​​
Unlike natural wood, composite siding is not susceptible to rot, insect damage or fungal growth.​​​​​​​
Suitable for Long-Term Exterior-grade​​​​​​​
With proper installation, composite cladding provides long service life and consistent performance on exterior walls.​​​​​​​

How to Install Composite Cladding on Exterior Walls

Composite cladding installation should follow three key principles to ensure long-term performance:

Ventilated Substructure
Install composite cladding on a stable batten system that provides sufficient airflow between the wall and the cladding, allowing moisture drainage and ventilation.
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Expansion Allowance
Allow appropriate expansion gaps to accommodate temperature-related movement and prevent deformation over time.
Correct Fixing Systems
Use suitable fixings designed for composite cladding to maintain structural stability, consistent spacing and long-term appearance.
Composite Cladding FAQs
  • Is composite cladding suitable for exterior walls?
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    Yes. Composite cladding is specifically designed for exterior wall and siding applications.
  • Is composite cladding waterproof?
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    Composite cladding is moisture resistant and suitable for outdoor use when installed correctly with ventilation.
  • Does composite cladding fade over time?
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    Some initial colour stabilisation may occur, after which the colour remains relatively consistent.
  • Is composite cladding better than wood siding?
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    Composite cladding generally offers lower maintenance and better resistance to moisture and insects than wood siding.
  • How long does composite cladding last?
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    With proper installation, composite cladding can last for decades.
  • Is WPC cladding suitable for different climates?
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    Yes. WPC composite cladding performs well in a wide range of climates, including hot, cold and humid environments.
  • What is the difference between composite cladding and PVC cladding?
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    Composite cladding contains wood fibres for a more natural appearance, while PVC cladding is entirely plastic-based.

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