Do I Need Underlayment For Laminate Flooring On Plywood

Do I Need Underlayment For Laminate Flooring On Plywood?

When it comes to installing laminate flooring over plywood, many homeowners wonder if underlayment is necessary. Laminate flooring manufacturers usually recommend the use of underlayment, but there are certain factors to consider before making a decision.

Benefits of Underlayment

Underlayment can provide several benefits for laminate flooring installed on plywood:

Moisture barrier: Underlayment acts as a moisture barrier between the plywood subfloor and the laminate flooring, preventing moisture from seeping into the flooring and causing damage.
Sound reduction: Underlayment can help reduce sound transmission, which is especially beneficial in multi-story homes or apartments.
Thermal insulation: Underlayment provides some thermal insulation, making the floor feel warmer and more comfortable.
Leveling imperfections: If the plywood subfloor has minor imperfections or unevenness, underlayment can help level it, providing a smoother surface for laminate flooring installation.

When Underlayment is Not Necessary

In certain situations, underlayment may not be necessary for laminate flooring on plywood:

Plywood subfloor in good condition: If the plywood subfloor is in good condition, flat, and free of moisture, underlayment may not be required.
Laminate flooring with built-in underlayment: Some laminate flooring products come with an attached underlayment, eliminating the need for additional underlayment.
Floating laminate flooring: Floating laminate flooring is installed without nails or glue, and it typically has a built-in underlayment that provides the necessary moisture barrier and sound reduction.

Choosing the Right Underlayment

If underlayment is necessary, it's crucial to choose the right type for laminate flooring on plywood.

Thickness: Underlayment thickness typically ranges from 2mm to 10mm. Choose a thickness that provides the desired level of support and insulation.
Material: Underlayment materials include foam, cork, rubber, and felt. Foam underlayment is the most common and affordable option.
Vapor barrier: Choose underlayment with a built-in vapor barrier to prevent moisture migration.

Conclusion

Whether or not you need underlayment for laminate flooring on plywood depends on the condition of the subfloor, the type of laminate flooring, and your desired level of sound reduction and insulation. By considering these factors and choosing the right underlayment, you can ensure a successful and long-lasting laminate flooring installation.