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Concrete Moisture and Flooring: What Melbourne Homes Need to Check

Slab moisture is the silent killer of new floors. Here's why testing matters, especially on ground floors and new builds.

12 July 2026 · 4 min read

Moisture rising through a concrete slab is one of the most common causes of flooring failure — and one of the most preventable.

Why it happens

Ground-level and new slabs can carry significant moisture. If flooring is installed before the slab is dry enough, that moisture gets trapped, leading to adhesive failure, lifting, and odours.

When to test

  • New builds with recently poured slabs
  • Ground-floor rooms and extensions
  • Any slab showing damp patches or efflorescence

Managing it

Moisture testing tells us whether the slab is ready or needs a moisture barrier. Skipping this step risks the whole installation.

AB Flooring moisture-tests slabs where needed before installing, protecting your investment. Ask us about your project.

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