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How to remove carpet underlay?

Published in Carpet Removal 2 mins read

To remove carpet underlay, you will primarily need a scraper tool to lift and scrape it off.

Removing old carpet underlay is a common task when replacing flooring. It can sometimes be straightforward, while other times it might require more effort, especially if it's heavily glued or deteriorated.

Tools Needed

Based on the process, the essential tool is:

Tool Type Description Primary Use
Scraper Tool Various sizes available Lifting and scraping

Other potentially useful items might include work gloves, a utility knife (for cutting underlay into manageable pieces), and a waste disposal bag.

Step-by-Step Process

The core method for removing carpet underlay involves lifting and scraping.

  1. Preparation: Ensure the old carpet has been completely removed. Clear the area of any obstacles.
  2. Locate an Edge: Find a loose edge of the underlay. If necessary, you might need to cut into the underlay with a utility knife to create a starting point.
  3. Lift and Scrape: Using your scraper tool, begin to lift the edge of the underlay. As you lift, use the scraper to detach it from the subfloor by scraping underneath.
  4. Apply Effort: According to the reference, "To remove the underlay, you'll need a scraper tool and you should be able to lift and scrape it off. You might need to give it some welly to remove it completely." This means some sections might be stubborn and require firm pressure or repeated scraping to loosen.
  5. Remove Sections: Continue lifting and scraping large pieces of underlay. Cut larger sections with a utility knife into smaller, more manageable pieces for easier handling and disposal.
  6. Clean the Subfloor: Once all the underlay is removed, scrape away any remaining residue or small bits stuck to the subfloor using your scraper.

Dealing with Stubborn Areas

If the underlay or its adhesive is particularly stuck, you might need extra effort ("give it some welly"). This could involve:

  • Using a sturdier, wider scraper.
  • Focusing scraping efforts on smaller areas at a time.
  • Gently warming stubborn adhesive spots (with caution and appropriate tools, not mentioned in the reference, but a general technique for adhesive removal).

Always wear appropriate safety gear, such as work gloves, during the removal process.