Cladding for Home Extension Projects – How to Choose the Right Exterior Solution

You’re after contrast, texture and design-led detailing. Use timber to highlight a key architectural element, helping to clearly define different parts of the build. Using contrasting tones is impactful, such as pairing a darker stained timber with a lighter board or through mixed board widths or oversized profiles. Also, texture – brushed surfaces or charred finishes enhance the natural grain and add depth, creating a more tactile facade. The most successful designs focus on one or two ideas, executed well, rather than trying to incorporate too many features at once.

Once you move away from vertical cladding, both detailing and installation require much more attention. Vertical cladding allows water to shed more easily, whereas horizontal and angled applications require careful design to manage moisture. Ventilation and drainage are key, and profile selection plays an important role in directing water away from the building envelope. Diagonal and complex layouts can deliver excellent design freedom, provided they are planned early and executed with the correct level of technical understanding.

With more individual boards comes more fixings, so alignment and consistency are critical. Visible fixings can become a strong design feature when carefully installed, adding detail to the facade. However, achieving this can be time-consuming and requires a high level of accuracy. Spacing and expansion gaps must also be manually set out to allow for natural timber movement. This is where a systemised approach can make a significant difference. For example, the Millworks Secret Clip system uses pre-spaced hidden clips, helping to achieve consistent gaps and a precise finish while reducing time spent on site setting out and fixing.

Brick is a popular pairing, adding a sense of solidity and contrast to timber’s natural softness. Render or plaster provides a clean, contemporary backdrop, while metal elements (like aluminium or Corten steel finishes) create a more modern, architectural feel. One of the most striking combinations is timber with glass, enhancing natural light while allowing the warmth and texture of the wood to stand out, working to connect inside and out. The key here is balance – successful designs typically combine two or three materials rather than too many competing elements, allowing each to complement the others.

I recommend being bold and choosing something that creates depth. That way the walls will change throughout the day as the sun casts varying shadows as it moves. Choose a material that stands out against the green of your garden.

Different materials all have different maintenance requirements and will weather differently. Use masonry or tiles for reduced upkeep or a timber based material if you are willing to spend a bit of time refinishing it every five years or so.

Tiles, painted timber or fibre cement panels are all great colourful solutions.

Think about how they are laid or set out and try and increase depth wherever possible. Shadows and depth increase visual interest that changes over the course of the day and throughout the seasons.

There is no wrong answer to this, it’s just how much contrast you feel comfortable with. Some prefer one visual quality to be kept consistent with the others contrasting. For instance, sticking to one colour but varying the materials, or using a single cladding type in a variety of ways which creates different shadows and textures.

Adding any complexity increases cost, but if you are clever about choosing just enough variety you can really transform an otherwise standard extension into something quite unique. Be bold.