WPC Cladding
Wood Plastic Composite (WPC) cladding combines the aesthetic of timber with the durability of engineered materials. Understanding WPC profiles helps ensure the right mounting solution for your project.
What is WPC?
Wood Plastic Composite is an engineered material combining wood fibres (or flour) with thermoplastics like polyethylene, polypropylene, or PVC. The result is a material that looks like timber but offers improved resistance to moisture, rot, and insects.
Composition
- • 40-70% wood fibre content
- • Thermoplastic polymer binder
- • UV stabilizers and colorants
- • Optional fire retardants
Common Profiles
- • Hollow-core battens
- • Solid-core boards
- • V-groove panels
- • Shiplap profiles
WPC vs Traditional Timber
| Property | WPC | Natural Timber |
|---|---|---|
| Moisture Resistance | Excellent | Variable |
| Maintenance | Low | Regular sealing/oiling |
| Colour Stability | Good (UV stabilized) | Weathers naturally |
| Fixing Methods | Screws, clips | Screws, nails |
| Thermal Movement | Higher expansion | Lower |
Mounting on WPC Profiles
WPC cladding shares the same mounting challenges as timber battens and grooved panels. The profiled surface prevents standard electrical hardware from sitting flush. FlatClad spacers work with WPC profiles just as they do with natural timber, fibre cement, and other materials.
Key Considerations
- Profile dimensions (pitch, groove depth)
- Hollow vs solid core construction
- Thermal expansion allowances
- Fixing into substrate behind WPC
Popular WPC Brands
NewTechWood, Trex, Futurewood, ModWood, Cladco, and many regional manufacturers offer WPC profiles. If your specific profile isn't listed, contact us with measurements.
For Specifiers
When specifying WPC cladding, consider electrical outlet placement early. WPC's hollow-core construction may require specific backing methods for heavier fixtures. Include FlatClad spacers in your specification to ensure consistent, professional electrical installations.
Specification Note
Provide the WPC product name and profile dimensions when ordering spacers. We'll match the inverse geometry to your specific profile, ensuring a precise fit regardless of manufacturer.
For Builders & Trades
Installation Tips
- • Pre-plan outlet positions before cladding
- • Install solid blocking behind WPC for fixings
- • Use stainless steel screws for longevity
- • Allow for thermal movement gaps
Common Issues
- • Fixings pulling through hollow profiles
- • Colour variation between batches
- • Expansion gaps not accounted for
- • Incorrect screw types causing splits
Find Spacers for WPC
Search our database by profile dimensions or contact us with your WPC product details.