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Unit: Inspecting and testing subfloors

LMFFL2004A: Moisture test timber and concrete floors
LMFFL3101A: Inspect sub-floors


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It's a good feeling when the client thanks you for a job well done and tells you how pleased they are with the finished floor.

Happy clients are also good for your business - they pay their bills on time and recommend your services to others.

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But it's what the client doesn't see that will really make a difference to their long term enjoyment of the floor.

The effort you've put into preparing the subfloor and fixing any problems that might cause trouble later are central to the floor's performance in the coming years.

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This is what sets professional installers apart from the fly-by-nights.

Anyone who puts a new floor covering down on a poorly prepared subfloor is about to prove the truth of the old saying: 'Beauty is only skin deep, but ugliness goes right to the core'.

Because when the ugliness starts - such as blistering, rutting, stains, delaminating layers and other forms of damage - there is nothing they'll be able to do at a 'cosmetic' level to stop it.

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In this unit, we'll look at the crucial importance of subfloor inspection and moisture testing when you're carrying out a site assessment before starting a new installation project.

We'll also examine the structure of subfloors and the types of material they are made from.

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Working through this unit

There are four sections in this unit:

Audio 5 (mp3 |6|KB)
  1. Subfloor systems

  2. Moisture in subfloors

  3. Inspecting subfloors

  4. Measuring moisture and pH.

Each section contains an overview, an assignment, and several lessons. The links to these pages will appear in the side menu bar when you select the main link for that section.

Practical demonstration

Your final assessment of competency in this unit will include demonstrations of your ability to put your knowledge into practice and physically carry out the process of inspecting subfloors and testing their moisture levels. To help you get ready for these hands-on assessment activities, have a look at the Practical demonstration checklist by clicking on the link below:

Practical demonstration checklist

Your trainer may ask you to keep a log book of the work you do on-the-job that relates to these tasks. This will help them to see whether you have had sufficient practice in the full range of activities needed to satisfy the competency requirements, and to determine when you'll be ready to undertake the assessment events.

Select the link below to go to the first section of this unit.

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