Bad weather is a fact of life on New Zealand building sites, and a good scaffolding contractor will have a clear plan for managing it. In most cases, your scaffolding stays in place — it's designed to handle the elements — but there are important safety checks, wind ratings, and protocols that kick in when conditions deteriorate.
Is Scaffolding Designed to Handle NZ Weather?
Yes. Properly erected scaffolding is engineered to withstand significant wind and rain loads. In New Zealand, scaffolding must comply with NZS 4576:1995 (Guidelines for Scaffolding Safety) and relevant provisions of the NZ Building Code, and scaffolders are required to work to safe load and wind ratings for every structure they erect.
That said, no scaffold is rated for every possible weather event. New Zealand's climate — particularly in exposed coastal areas, Wellington, and the South Island — can produce extreme gusts that exceed standard design loads. This is why your scaffolder should assess the site's wind exposure category before erecting the structure.
What Your Scaffolder Should Do When Bad Weather Hits
A professional scaffolding contractor will typically follow these steps when the forecast turns nasty:
- Inspect the scaffold before and after any significant weather event, checking for shifted standards (uprights), loose ties, damaged boards, and debris.
- Tighten or add ties to the building structure if high winds are expected. Ties are the connections between the scaffold and your home — more ties mean more stability.
- Remove or secure loose materials — tools, buckets, off-cuts, and sheeting can become dangerous projectiles in strong wind.
- Install or remove shade cloth and shrink-wrap — these coverings catch wind like a sail and can dramatically increase the load on a scaffold. Your scaffolder may remove them ahead of a storm, or use purpose-made debris netting rated for wind loads.
- Restrict access to the scaffold during unsafe conditions. Under the Health and Safety at Work Act 2015, the scaffolding company (as a PCBU — Person Conducting a Business or Undertaking) has a duty to ensure workers are not exposed to undue risk.
Wind Speed Thresholds and Work Stoppages
Most scaffolding contractors follow industry guidelines that restrict work at height when sustained winds exceed around 45 km/h, though this can vary depending on the scaffold type, height, and what work is being carried out. Gusts significantly above this can make even moving around on a scaffold dangerous.
Your scaffolder should be able to tell you:
| Condition | Typical Response |
|---|---|
| Light rain, mild wind | Work continues with normal care |
| Sustained wind ~45 km/h+ | Work at height paused, scaffold inspected |
| Severe storm / gale warning | Access restricted, ties checked, loose items secured |
| Post-storm | Full inspection before work resumes |
Always ask your scaffolding contractor what their specific wind policy is before work begins.
Does the Scaffold Come Down in a Storm?
Rarely. Dismantling scaffolding mid-job is time-consuming, expensive, and can itself be dangerous in deteriorating conditions. In most cases, the scaffold remains standing but access is restricted until conditions are safe again. If a severe weather event is forecast (such as a named storm or a MetService red warning), your scaffolder may take additional precautions such as adding extra ties or removing sheeting, but full dismantling is unusual.
If the scaffold is damaged in a storm, do not use it until a qualified scaffolder has inspected and signed it off as safe. A damaged scaffold can look fine to an untrained eye but have compromised structural integrity.
Who Is Responsible for the Scaffold During Bad Weather?
This is an important question to clarify with your contractor before work starts. Generally:
- The scaffolding company retains responsibility for the structural integrity of the scaffold for the duration of the hire.
- The principal contractor or homeowner may have responsibilities around site security and ensuring no one accesses a restricted scaffold.
- Your home and contents insurance may or may not cover damage caused by scaffolding in a storm — check your policy.
Get your scaffolding contractor's responsibilities in writing as part of your contract, including what happens in the event of storm damage.
Protecting Your Property
If your home is being painted, re-roofed, or re-clad and scaffolding is in place, ask your scaffolder about shrink-wrap encapsulation or heavy-duty sheeting. These can protect your home from rain ingress during the job — but as noted above, they must be properly rated and may need to be removed ahead of extreme wind events.
For guidance on weathertightness and cladding work, BRANZ is an excellent NZ resource.
When to Call a Professional
Always use a qualified, experienced scaffolding contractor for any scaffold erected at your home. Scaffolding is not a DIY job — erecting or modifying scaffold incorrectly is a serious safety risk and may breach WorkSafe NZ requirements. If you notice your scaffold has shifted, a standard has leaned, boards have moved, or ties have come away from the wall after bad weather, do not use the scaffold — contact your scaffolding contractor immediately for an inspection.
You can find qualified local scaffolders on tradedirectory.co.nz.
