The shed behind a Frankton bungalow looked like nothing much — corrugated sheeting, a dirt floor, the kind of structure most owners would happily throw a skip at and forget about. The corrugated sheets were fibrous cement, though, and a scratch through the surface layer with a screwdriver was enough to make the demolition crew stop and ask for testing before anyone touched it further. That pause is the entire point of how asbestos in old outbuildings is supposed to be handled, and it’s worth understanding before the skip gets booked.
Why old Frankton outbuildings are common asbestos suspects
Frankton’s older housing stock includes plenty of sheds, garages and lean-tos built or added to between the 1950s and 1980s, exactly the decades when fibrous cement sheeting, corrugated asbestos roofing, and asbestos-containing floor tiles and pipe lagging were standard, inexpensive building materials across New Zealand. An outbuilding that’s never been renovated is more likely to still contain its original materials than a house that’s been through several kitchen and bathroom updates, which is part of why sheds and garages turn up as often as they do once someone finally decides to clear a section.
What has to happen before anything is removed
Under New Zealand’s health and safety regulations that came into force after 2016, any building material suspected of containing asbestos has to be identified and assessed before demolition or removal work begins, not discovered partway through. In practice that means a visual inspection and, where the material can’t be confidently identified by sight, a sample sent for laboratory testing. The result of that assessment determines everything that follows — whether the material is friable or non-friable, how much of it there is, and whether the removal work needs to be carried out by a licensed asbestos removalist or can be handled as a smaller, lower-risk task. Skipping straight to demolition without this step is the single most common way owners end up with a stop-work notice partway through a job.
Licensed versus unlicensed removal work
Not every job involving asbestos-containing material needs a specialist licensed removalist. Small, controlled removal of certain non-friable materials can sometimes be carried out without a licence, provided the work follows the required safe-work practices around wetting, containment and disposal. Larger jobs, friable material, or work of an uncertain scale generally require a Class A or Class B licensed asbestos removal operation, depending on the material and quantity involved. Getting this classification wrong in either direction causes problems — treating a licensed job as a do-it-yourself task is a genuine health risk and a compliance breach, while over-engineering a small job adds unnecessary cost.
Soil, disposal and closing out the job
Where old corrugated sheeting has been sitting on bare ground for decades, weathering and fragmenting at the edges, soil beneath and immediately around the structure sometimes needs testing as well, particularly before that ground is disturbed for landscaping or a new build. Removed material, once bagged or wrapped according to the required standard, has to go to a facility licensed to accept asbestos waste rather than a general construction and demolition landfill, and keeping the disposal documentation is what actually closes the job out from a compliance standpoint.
Sorting out which category a given outbuilding falls into, before any of it is disturbed, is the conversation worth having early, and a Hamilton demolition company that handles licensed removal as routine work is generally in a better position to make that call than a general contractor taking on the job as one part of a wider clearance.
Frequently asked questions
How do I know if an old shed contains asbestos? Visual identification alone isn’t reliable for a lot of older fibrous cement and corrugated sheeting; a sample sent for laboratory testing is the only way to confirm it before demolition begins.
Do I need a licensed removalist for a small amount of asbestos sheeting? Not always — some small-scale, non-friable removal can be done without a licence if safe-work practices are followed, but larger or friable material generally requires a licensed operator.
Where does removed asbestos material get disposed of? It has to go to a facility specifically licensed to accept asbestos waste, not a standard construction and demolition landfill, with disposal documentation kept as proof.