Materials · Detail

PVC vs timber dormer cladding

The choice between PVC and timber is older than the choice deserves to be. Modern composite panels have changed the picture — and within each category the gap between the cheapest and the best is much bigger than the gap between categories.
6 min leestijd·Onafhankelijke informatie

Short answer

PVC is low-maintenance, affordable and limited in look. Timber is more characterful and lasts longest if it is well painted, but needs upkeep. Composite (HPL) panels split the difference: factory finish, low maintenance, sharper look — at a higher price. There is no universally right answer, only the right answer for your house and your willingness to maintain it.

PVC: what it is good and bad at

  • Good: low maintenance, no painting, predictable price, weather-resistant.
  • Bad: limited colour range, can discolour over time, repairs are visible, basic look.
  • Suits: standard family homes, rear roofs, budget-led upgrades.

Timber: what it is good and bad at

  • Good: warmest look, longest potential lifespan, easy to repair, ages with character.
  • Bad: needs repainting every 6–8 years, higher upfront cost, vulnerable if maintenance is skipped.
  • Suits: older houses, listed buildings, owners willing to schedule paint cycles.

Composite (HPL) panels as a third option

Brands like Trespa and Keralit use compressed laminate with a factory-baked colour. They look more like painted timber than PVC ever will, need almost no maintenance, and hold their colour for 20+ years. The trade-off is price — 15–25% above PVC on a like-for-like quote.

Side-by-side comparison

AspectPVCTimberComposite (HPL)
Typical lifespan20–30 years30–50 years (with paint)30+ years
MaintenanceMinimalRepaint every 6–8 yrsMinimal
LookBasicWarm, characterfulSharp, modern
RepairabilityVisible patchesEasyReplace panel
Colour stabilityAverageExcellent with paintExcellent
Cost (index)100120–140115–125

FAQ

FAQ

Veelgestelde vragen

01Is PVC always worse than timber?
No. Good modern PVC outlasts cheap timber. But high-grade timber, well-painted and maintained, outlives any PVC. The honest answer is: it depends on the grade of each, not on the category.
02What about composite cladding like Trespa or Keralit?
Composite (HPL) panels combine the low maintenance of PVC with a sharper finish and better colour stability. Cost is higher, lifespan is excellent.
03Which one stays looking good the longest?
Composite panels and aluminium-clad timber both age very slowly. Standard PVC is fine for 15–20 years; cheap PVC discolours from year 8 onwards.
Conclusie
Choose the cladding that fits the house and the way you live in it. A homeowner who will repaint on schedule is a timber owner. A homeowner who never wants to think about the dormer again is a composite or PVC owner. Both are valid — just be honest with yourself before the quote arrives.