Tarneit Building
Inspections
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Slab pre-pour inspection in Tarneit

Tarneit slabs sit on Class H1 and H2 basalt clay, so the slab design does more work here than in most of Melbourne. The pre-pour inspection is the only time the reinforcement, beams and vapour barrier can be seen.

  • The day before the concrete pour
  • About 1 hour on site
  • Report within 24 hours
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Fully licensed & accredited

Stage2 of 7
When to bookThe day before the concrete pour
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 Tarneit slab pre-pour inspection

  • Slab class and layout checked against the engineer's design and the soil report
  • Edge beam and internal beam depths and widths
  • Reinforcement size, spacing, laps and trench mesh
  • Bar chairs, cover and support so steel does not sit on the ground
  • Waffle pods, void formers and pod spacing
  • Vapour barrier coverage, laps and tape at penetrations
  • Plumbing and electrical penetrations and sleeves
  • Set-downs for wet areas, garage, porch and alfresco
  • Termite management components installed before the pour
  • Formwork alignment, level and set-out against the plans
  • Stormwater pipe cover and pit positions where visible
  • Site cut, fill and pier holes where visible
  • Hot water service and meter box slab extensions formed
  • Trench cleanliness and debris before the pour
Why it matters here

Slab pre-pour inspections on Tarneit builds

Every Tarneit lot has a soil report and an engineered slab. We check that what is on the ground matches that design: beam depths for the site class, reinforcement laps, bar chairs holding the steel off the pods, and the vapour barrier taped at every penetration. On the Werribee Plains, a slab that is under-designed for the clay shows up as cracking and sticking doors within two summers.

What we find at this stage in Tarneit

  • Bar chairs missing or steel sitting on the pods, so cover is lost
  • Reinforcement laps short or trench mesh stopping short of corners
  • Vapour barrier torn at pod edges or untaped at plumbing risers
  • Edge beam shallower than the H2 design because the trench was not cleaned out
  • Plumbing set-downs in the wrong room or missing at the garage
Reinforcement left with mud and rust that must be cleaned off before pouring, Tarneit
Reinforcement left with mud and rust that must be cleaned off before pouring
Shower recess not formed in the slab before the pour, Tarneit
Shower recess not formed in the slab before the pour
No vapour barrier under the slab, leaving the floor open to rising moisture, Tarneit
No vapour barrier under the slab, leaving the floor open to rising moisture
The engineer's ground floor slab plan, what we check the pour against, Tarneit
The engineer's ground floor slab plan, what we check the pour against
Sample findings

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

Annotated findings from Slab pre-pour inspections on Tarneit builds. Client addresses withheld.

Internal beam narrower than the 110mm the engineer specified, found during a slab pre-pour inspection in Tarneit
Internal beam narrower than the 110mm the engineer specified
Slab reinforcement touching pipework, with none of the 25mm clearance required, found during a slab pre-pour inspection in Tarneit
Slab reinforcement touching pipework, with none of the 25mm clearance required
Pipe penetrations through the vapour barrier left unsealed, found during a slab pre-pour inspection in Tarneit
Pipe penetrations through the vapour barrier left unsealed
Offcuts and debris left in the slab that must come out before the pour, found during a slab pre-pour inspection in Tarneit
Offcuts and debris left in the slab that must come out before the pour
Loose waffle pods that would shift and narrow the beams during the pour, found during a slab pre-pour inspection in Tarneit
Loose waffle pods that would shift and narrow the beams during the pour

The other stages of a Tarneit build

  1. Bored piers inspection in Tarneit1Bored piersAfter the piers are drilled and steel is placed, before concrete
  2. Frame inspection in Tarneit3FrameAfter roof trusses are on, before wrap, sarking and roof cladding
  3. Lock-up (pre-plaster) inspection in Tarneit4Lock-up (pre-plaster)After brickwork, windows and roof are on, before plasterboard
  4. Fixing inspection in Tarneit5FixingAfter plaster, doors and cabinetry are in, before paint
  5. Waterproofing inspection in Tarneit6WaterproofingAfter the waterproofer finishes, before the tiler starts
  6. Pre-handover (PCI) inspection in Tarneit7Pre-handover (PCI)At practical completion, three to five days before the builder's walk-through

All construction stage inspections in Tarneit →

Guides

Construction stage guides for Tarneit

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Book a slab pre-pour inspection in Tarneit

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FAQ

Slab pre-pour inspections in Tarneit: common questions

What if the pour is tomorrow morning?

Call us today. Tarneit slab inspections are usually possible within 24 hours because our inspectors are already in the western estates most days.

Can defects found at slab stage be fixed before the pour?

Yes, almost always on the day. Bar chairs, laps and barrier repairs take the concreter minutes. That is the point of inspecting before the pour.

Do you check the soil report?

We ask for the soil report and the slab drawings before the visit and check the slab class and beam depths against them.

What happens if it rains before the pour?

The pour is rescheduled and we attend on the new date at no extra charge if the change is inside our booking window.

Can you check the soil report against the slab design?

Yes. Send the soil report and the engineering drawings before the visit and we compare the site class and beam depths.

Is the slab inspected again after the pour?

A post-pour visit is separate. Most owners move to the frame inspection instead.

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