Moisture Control

Moisture Control

Protecting your floor covering investment from slab moisture

Moisture: The Hidden Floor Killer

Moisture vapour transmission through concrete slabs is one of the most common—and costly—causes of floor covering failure. Adhesive breakdown, bubbling, delamination, and mould growth all stem from moisture migrating up through the slab.

Apex Floor Preparation provides tested moisture control solutions that protect your floor covering investment. We measure, diagnose, and treat moisture issues before they become warranty claims and callbacks.

Warning Signs

  • Adhesive failure under vinyl or carpet
  • Bubbling or blistering coatings
  • White efflorescence on surface
  • Musty odours or mould growth
  • Cupping or warping timber floors
  • Discolouration under coverings

Our Moisture Control Solutions

Moisture Testing

Comprehensive moisture assessment using ASTM F2170 in-situ relative humidity testing and calcium chloride testing (AS 1884). Documented results to determine if moisture mitigation is required before your floor covering is installed.

Vapour Barriers

High-performance epoxy vapour barriers that block moisture transmission up to 100% RH. Applied systems rated to handle the most severe moisture conditions. Compatible with all floor covering types.

Moisture-Tolerant Primers

Specialist primers for moderate moisture conditions. Penetrating systems that manage moisture levels within acceptable limits for your floor covering adhesive or coating system.

Encapsulation Systems

Complete encapsulation of contaminated or high-moisture slabs. Multi-layer systems that isolate the floor covering from the substrate. Includes warranties from system manufacturers.

Testing & Documentation

Every moisture control project includes comprehensive documentation:

Pre-installation testing — RH probe and calcium chloride results with location mapping

Product records — Batch numbers, coverage rates, and cure times

Warranty documentation — System manufacturer warranties where applicable

Concerned about slab moisture?