Strathtulloh Building
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Waterproofing inspection in Strathtulloh

We inspect the wet area membranes after they have cured and before the tiler starts, because a fault in a membrane is invisible and permanent once tiles are bedded over it.

  • Membrane cured, tiler not yet on site
  • About 1 hour on site
  • Report within 24 hours
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Fully licensed & accredited

Stage6 of 7
When to bookMembrane cured, tiler not yet on site
Time on siteAbout 1 hour on site
Inspected againstAS 3740 (waterproofing of domestic wet areas), AS 3958 (tiling), NCC Volume Two Part 10.2

What is included in a Strathtulloh waterproofing inspection

  • Membrane coverage across the floor and up the walls
  • Wall upturn heights at the shower and against hobs
  • Hob, threshold and step-down details
  • Bond breakers at wall and floor junctions
  • Floor waste flange bedded and sealed to the membrane
  • Falls to the floor waste and shower screed
  • Penetrations for taps, wastes and shower rails sealed
  • Membrane cure, damage and coverage before tiling
  • Primer and substrate preparation where visible
  • Set-down depth against the finished floor level
  • Junctions to baths, screens and vanities
  • Laundry, powder room and ensuite treated to the same standard
Why it matters here

Waterproofing inspections on Strathtulloh builds

The membrane details we see fail most often are small: a bath junction lapped 20mm instead of 40mm, a bond breaker too thin at a hob, a membrane that stops short of the floor waste flange. Each lets water track under the tiles where it can sit for years.

What we find at this stage in Strathtulloh

  • Bath and wall junctions lapped less than 40mm
  • Bond breakers too thin at the shower hob
  • Membrane not taken into the waste flange
  • Membrane damaged by other trades
  • Wastes blocked with debris
  • Membrane left unprotected before tiling
Bath waste choked with debris and insulation before the bath was set, Strathtulloh
Bath waste choked with debris and insulation before the bath was set
Bath junction membrane measured short of the 40mm lap each side, Strathtulloh
Bath junction membrane measured short of the 40mm lap each side
Fresh membrane on a shower floor left open to damage from other trades, Strathtulloh
Fresh membrane on a shower floor left open to damage from other trades
Sample findings

Sample defects found during our waterproofing inspections in Strathtulloh

Annotated findings from Waterproofing inspections.

Membrane at the bath junction not reaching 40mm either side as required, found during a waterproofing inspection in Strathtulloh
Membrane at the bath junction not reaching 40mm either side as required
Bond breaker at the shower hob too thin to let the membrane flex, found during a waterproofing inspection in Strathtulloh
Bond breaker at the shower hob too thin to let the membrane flex
Membrane not taken into the drainage flange, so water can bypass the waste, found during a waterproofing inspection in Strathtulloh
Membrane not taken into the drainage flange, so water can bypass the waste
Damaged shower membrane that has to be repaired before tiling, found during a waterproofing inspection in Strathtulloh
Damaged shower membrane that has to be repaired before tiling

The other stages of a Strathtulloh build

  1. Bored piers inspection in Strathtulloh1Bored piersWith the piers drilled and the cages lowered in, before the concrete truck arrives
  2. Slab pre-pour inspection in Strathtulloh2Slab pre-pourOnce steel, pods and membrane are complete, the day before concrete
  3. Frame inspection in Strathtulloh3FrameWith trusses fixed and before wall wrap or roof sarking closes it in
  4. Lock-up (pre-plaster) inspection in Strathtulloh4Lock-up (pre-plaster)Roof, windows and brickwork in, plasterboard not yet delivered
  5. Fixing inspection in Strathtulloh5FixingLinings, doors and joinery in, painter not yet started
  6. Pre-handover (PCI) inspection in Strathtulloh7Pre-handover (PCI)When the builder calls practical completion, before you sign or pay the final claim

All construction stage inspections in Strathtulloh →

Guides

Construction stage guides for Strathtulloh

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FAQ

Waterproofing inspections in Strathtulloh: common questions

Which standard governs bathroom and laundry waterproofing?

AS 3740 for waterproofing domestic wet areas, the Housing Provisions and the Guide to Standards and Tolerances 2015.

Can you check waterproofing after tiling?

Only indirectly, through leaks and moisture readings. The membrane itself has to be seen before tiles go down.

Which rooms do you check?

Every shower, bath, laundry and wet area the contract requires to be waterproofed.

What is a bond breaker?

A strip that lets the membrane flex at a junction instead of tearing as the building moves. If it is too thin, the membrane can split at the corner.

Do you flood test?

No. Our membrane check relies on sight and measurement only. Flood testing is a separate procedure the builder can arrange.

How long does it take?

About an hour for a typical home with two bathrooms and a laundry.

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