Every natural timber silvers unevenly depending on exposure. If that bothers you, the decision is already made.
The three families
Western red cedar is light, stable and naturally durable, and silvers to grey. Thermally modified softwoods offer improved stability and durability at lower cost with a darker initial tone. Composite and fibre-cement boards hold their colour and need only cleaning.
Charred and pre-weathered timber products sit between the two, giving a consistent dark finish without paint.
Detailing matters more than the board
Cladding fails at its details. A ventilated and drained cavity behind the boards, correctly specified battens, breather membrane, insect mesh at the base, and generous drips at heads and cills do more for longevity than the species chosen.
End grain is the weak point on any timber. Sealing cut ends and detailing junctions so water sheds rather than sits is what separates a ten-year job from a thirty-year one.
Cost, maintenance and constraints
Untreated cedar left to silver needs essentially no maintenance but changes appearance. Keeping timber at its original colour means a UV-stable coating and a recoating cycle. Composite is the low-maintenance option but has a different, flatter look.
Height and proximity to a boundary can bring fire performance requirements into play, which rules some materials out. That is checked at design stage, not on site.
Common questions
Does cedar need treating?
Not for durability. Treatment is about colour — leave it and it silvers, coat it and you commit to a recoating cycle.
Is composite cladding cheaper than cedar?
Board cost is often comparable; the difference shows in maintenance over time and in the finished appearance.
Can cladding go straight onto a wall?
No. It needs a ventilated and drained cavity behind it on battens, with a breather membrane, or moisture will be trapped against the structure.
How long does cladding take to install?
On a typical domestic elevation, allow one to three weeks depending on size, plus access equipment.