Project question
“I need a low-maintenance timber façade for a school in Gothenburg, with a 50-year ambition and natural ageing.”
Illustrative · status bars are not live engine output or a graded claim
- Evidence
- Standards cited
- Prediction
- Inputs needed
- Decision
- Conditional
Recommended direction
Start with moisture-safe detailing.
Specify a ventilated, drained rainscreen. Match the timber’s declared durability to its wetting exposure and the maintenance plan, rather than relying on species alone.
- Design ambition
- 50 years
- Service life
- Modelled estimate, not a guarantee. Confirm exposure, detailing and maintenance before setting a range.
EN 335 · EN 350 · ISO 15686-8
Climate over the service life
Specification extract
Declare durability and use class; provide drained ventilation, protect end grain and document inspection and maintenance requirements.