Can You Lay Vinyl Flooring Over Carpet Underlay

Can Vinyl Flooring Be Installed Over Carpet Underlay?

Installing vinyl flooring over carpet underlay is a common inquiry among homeowners looking to upgrade their flooring. While it may seem like a convenient solution, it's crucial to understand the implications and potential complications before proceeding.

Understanding Vinyl Flooring Types

There are two main types of vinyl flooring: luxury vinyl tile (LVT) and sheet vinyl. LVT comes in tiles or planks that resemble natural materials like wood or stone. Sheet vinyl, on the other hand, is a continuous roll that is cut and installed to fit the exact dimensions of the room.

Can LVT Be Installed Over Carpet Underlay?

Yes, it is generally possible to install LVT over carpet underlay. However, the underlay must meet specific requirements. It should be smooth, dry, and free of debris or adhesive residue. You may need to remove any existing carpet padding or install additional plywood to create a level and stable surface.

Can Sheet Vinyl Be Installed Over Carpet Underlay?

No, it is not recommended to install sheet vinyl over carpet underlay. Sheet vinyl requires a completely flat and moisture-resistant subfloor, which carpet underlay cannot provide. Installing sheet vinyl over carpet underlay can lead to bubbling, wrinkling, and premature failure.

Benefits and Drawbacks

Benefits:

Convenience: Can save time and effort compared to removing the carpet underlay.
Cost-effective: Eliminates the need for additional subfloor preparation.

Drawbacks:

Potential for uneven surface: Carpet underlay can create irregularities in the subfloor, affecting the flatness of the vinyl flooring.
Moisture concerns: Carpet underlay can trap moisture, which can damage vinyl flooring over time.
Limited compatibility: Sheet vinyl cannot be installed over carpet underlay.

Conclusion

While it is possible to install LVT over carpet underlay, it is crucial to ensure that the underlay meets the necessary requirements. Sheet vinyl, however, should not be installed over carpet underlay. If you are unsure whether your carpet underlay is suitable, it is always advisable to consult with a professional flooring installer for guidance.