Deanside Building
Inspections

Wet area sealant and the mould and damp standard

Why failed sealant in a bathroom matters for a Deanside rental.

Deanside 3336 · 2026-09-10

In short: A bead of sealant is small. The damp behind it is not.

Where water gets in

Sealant at baths, showers and benchtops stops water reaching the wall behind.

Mould starts there

Once water is behind the tiles, mould and damp follow.

What the standard asks

The property must be free from mould and damp caused by the building structure.

The fix

Resealing is quick and cheap when caught early.

Written by our local inspection team from work carried out in Deanside. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.

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FAQ

Questions Deanside owners ask about this

Is surface mould a fail?

Mould caused by the building structure is. Condensation mould from use is assessed case by case.

Is the type of mould identified?

No. Visible mould is photographed and moisture is read with a meter, nothing more.

How often should sealant be redone?

Whenever it cracks, lifts or discolours.

Who pays for repairs?

The rental provider must meet the standards.

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