How to insulate under laminate floors

Written by mikhail polenin Google
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How to insulate under laminate floors
Laminate floors require moisture protection in order to continue looking shiny and organised. (Digital Vision./Digital Vision/Getty Images)

The underside and core of laminate floor planks have a high sensitivity to moisture. To resolve this issue, you must prepare the subfloor with a moisture barrier and foam insulation, which also reduces the amount of noises made as you pace across the room. If you do not install the barrier, or fail to install it properly, your laminate floor will experience stress from humidity that gathers there over time.

Skill level:
Moderately Easy

Things you need

  • Plastic moisture barrier
  • Rolled foam insulation for laminate floors

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  1. 1

    Measure your room and purchase at least five extra square feet of plastic moisture barrier and foam insulation for laminate flooring.

  2. 2

    Unroll a strip of plastic moisture barrier from one edge of the room you want to install flooring in to the other edge. Cut the barrier right at the edge where you finish. Continue laying strips while overlapping the edges of each strip until you fill up the room. Trip the strips with a utility knife as needed.

  3. 3

    Unroll a strip of foam insulation and trim it off at the edge. Continue by laying another strip of insulation when you finish covering your first strip with laminate floor boards. Repeat this process as necessary until you have finished the entire floor.

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