Greenbank Building
Inspections

Slab pre-pour inspection in Greenbank

Steel, chairs and barrier, checked before they go under the new floor.

  • Before the concrete arrives, once the mesh is laid
  • About 1 hour on site
  • Report within 24 hours
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Fully licensed & accredited

Stage2 of 7
When to bookBefore the concrete arrives, once the mesh is laid
Time on siteAbout 1 hour on site
Inspected againstAS 2870, AS 3600, NCC Part 3.2, the engineer's slab design and the soil report

What is included in a Greenbank slab pre-pour inspection

  • Concrete cover at slab edges and the base
  • Mesh height and chair spacing
  • Steel extended past every slab step
  • Additional bottom bars for beams wider than the average
  • Sub-floor studs awaiting edge bars
  • Tight bars around service holes
  • Steel to pipe clearance verified
  • Pods sized and spaced to keep beam width
  • Vapour barrier patched and taped
  • Wet area set-downs constructed correctly
  • Reinforcing steel tied securely
  • Steel free of soil and debris
  • Treatments to openings
Why it matters here

Slab pre-pour inspections on Greenbank builds

We look at the formwork and reinforcement. Bar chairs often sit too close to the mesh. The vapour barrier needs good overlap. Edge beams sometimes miss the extra bottom bar they need. We also find edge rebar sitting hard against timber formwork with insufficient concrete cover.

What we find at this stage in Greenbank

  • Vapour barrier laps not sealed
  • Concrete cover short against formwork
  • Rebar extensions missing at slab steps
  • Bar chairs too close to the mesh
  • Bottom bar missing in wide edge beams
Trimming required, recorded during a slab pre-pour inspection in Greenbank
The shower recess is out of alignment and will make plastering difficult
Sample findings

Sample defects found during our slab pre-pour inspections in Greenbank

Annotated findings from Slab pre-pour inspections.

Shower recess hasn't been formed, recorded during a slab pre-pour inspection in Calamvale
The shower recesses are not formed in the ensuite and one bathroom, Calamvale
Damaged slab edge rebate, recorded during a slab pre-pour inspection in Redbank Plains
The slab edge rebate is damaged, which can let water get under the house, Redbank Plains
Bar chair needed, recorded during a slab pre-pour inspection in Sunnybank Hills
The inspector noted a bar chair was missing from the room, Sunnybank Hills
Shower recess not formed, recorded during a slab pre-pour inspection in Sunnybank Hills
The shower recess was not formed before concrete was poured, Sunnybank Hills

The other stages of a Greenbank build

  1. Bored piers inspection in Greenbank1Bored piersOnce the holes are dug, before the concrete pour
  2. Frame inspection in Greenbank3FrameFrame and trusses standing, roof sheeted, before linings
  3. Lock-up (pre-plaster) inspection in Greenbank4Lock-up (pre-plaster)Cladding, windows and rough-in complete, before plaster
  4. Fixing inspection in Greenbank5FixingJoinery, doors and trims are checked before painting begins.
  5. Waterproofing inspection in Greenbank6WaterproofingMembrane inspection before tile work
  6. Pre-handover (PCI) inspection in Greenbank7Pre-handover (PCI)Book a final inspection before handover

All construction stage inspections in Greenbank →

Guides

Construction stage guides for Greenbank

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FAQ

Slab pre-pour inspections in Greenbank: common questions

What happens if the vapour barrier is not sealed?

The builder seals the laps now. Once concrete is poured, moisture gets through and causes issues later.

How is concrete cover measured?

We use a gauge to check the distance from the steel to the formwork. It is a specific measurement against the engineering drawings.

Why are extra bars needed in edge beams?

Wide beams need more steel at the bottom to stop them from cracking. This detail is on the approved drawings.

How long does a slab inspection take?

We usually spend about an hour examining the reinforced area.

Can we check the slab on the day of the pour?

No, the concrete covers everything. It must be done beforehand.

Do you check the timber formwork as well?

Yes, we check the formwork condition and the steel inside it to ensure it meets the NCC standards.

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