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Composite Timber-look vs Thermally Modified Timber

Which Timber Solution Should You Use For Your Next Project?

Making the right timber selection for your next design project is integral. At Urbanline Architectural, we provide the latest in innovative building materials that will ensure high performance and style.

When considering the design elements of your build, it’s important to explore timber options, and asses which will best suit your needs. Do your design intentions inspire to achieve a warm and exotic finish? Or are you looking to showcase high-definition wood grain in a selection of rich colours ranging from deep earthy tones to spicy reds.

Composite and thermally modified timber are both excellent materials, and we provide both as an option for your architectural endeavours.

Composite Timber

Composites are a clever solution to all the maintenance problems experienced with timber, and depending on the manufacturer, are engineered from wood by-products including woodchip, wood fibre, talc and resins. The impressive design techniques work to combine strong synthetic components with the beauty of natural wood.

Thermally Modified Timber

This innovative material offers the best of both worlds. Enjoy the natural beauty of timber with the structural advantages of modern engineering, used to increase durability and stability. The solid timber is treated with a natural process which involves heating to alter the cellular structure, increasing its dimensional stability.

Exploring the benefits and uses will assist you in choosing the best material for the job!

Benefits of Composite Timbers

  • Durability: Composite timber-look products are resistant to fading, staining, scratching, warping, rotting and insects.
  • Low Maintenance: Regardless of the amount of weather conditions, with simple cleaning it will maintain its seamless appearance.
  • Fully Customisable: In addition to having a wide colour spectrum to work with, composite timber-look products can be used for accessories including screening, stairs, gates and outdoor furniture.
  • Eco-Friendly: All composite materials are generally toxin-free and environmentally friendly.
  • Strength: The synthetic materials used to construct composite timber-look products deliver an extremely robust product.

Main Uses

The benefits of composite timbers include its remarkable versatility. It can be used for any decking, cladding or screening application and is commonly used for:

  • Commercial buildings
  • Decks
  • Jetties
  • Hotels
  • Residential buildings
  • High UV areas

It can be attached to existing walls to add texture and colour, is a strong and flexible fencing option, and can be mixed with natural hardwoods.

Benefits of Thermally Modified Timbers

  • Durability: Organic compounds are extracted from the wood cells, restricting it from absorbing water, expanding, contracting and from fungus and decay.
  • Eco-Friendly: Low VOC, solvent and formaldehyde processes are used to modify the wood, the process is 100% natural and Urbanline only work with sustainably sourced wood from renewable forests.
  • Stability: Stability is increased by 50% compared to unmodified timber, guaranteeing strength in even the harshest weather conditions.
  • Cost-Effective: The natural modification process increases the value of natural wood, and achieves a unique, darkened colour that’s rich in character.
  • Low maintenance: Thermally modified timber provides long lasting durability with reduced maintenance.

Main Uses

Thermal modification increases the versatility of many wood species that do not perform well in wet or humid environments prior to treatment.

Thermally modified timbers are excellent for:

  • Interior and exterior siding
  • Flooring
  • Decking

We encourage its use for both domestic and commercial applications including:

  • Office complexes
  • Commercial reception areas
  • Residential buildings

It reacts well in coastal environments, tropical locations, and areas that are susceptible to harsh weather conditions.


We’re confident that your choice in timber will serve its purpose for a lifetime. Spend your time enjoying your living space without the worry of endless upkeep. In 25 years’ time, your composite or thermally modified timber-look project will respond with the same beauty and composure it did upon initial installation.

If you’re looking to benefit from a cost-effective, environmentally friendly timber solution, consider thermally modified timber for your next build. If customisation, style and strength are part of your vision, composite timber-look products will deliver the perfect combination of practicality and uniqueness.

Still unsure which timber will work best for you? Consult our expert team to discuss which material will serve you best in your next project.

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