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Unit: Inspecting and testing subfloors

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

Section 1: Subfloor systems

Your trainer may ask you to complete this assignment as one of the assessment requirements for this unit. For more information about the assessment process and advice on what to do if you need help with your reading and writing, click on the link below.

Assessment requirements

Provide short answers to the following questions:

  1. What is the difference between underlay and underlayment?

  2. What does DPC stand for, and what is its purpose?

  3. Briefly describe the characteristics of a 'stiffened raft' concrete slab.

  4. Name two structural flooring products commonly used in platform floors.

  5. Why do builders sometimes use a 'cut-in' floor system?

  6. List four different types of hard underlay.

  7. Fill in the correct terms in the drawing below.
  8. What type of flooring system is shown in the drawing above?

Doc (528 KB) Subfloor systems Assignment template

Click on the link above to go to the Word document you will need to complete. You should fill in your answers on-screen and then either:

  • print out a hard copy to send to your trainer by post

  • save the file electronically to submit to your trainer as an email attachment.