How To Dry Subfloor Under Laminate Flooring

Maintaining a dry subfloor is pivotal to the overall health and durability of laminate flooring. Excess moisture poses a myriad of potential issues, including warping, mold growth, and structural instability. In this comprehensive guide, we will walk you through a detailed step-by-step process to effectively dry a subfloor under laminate flooring, ensuring the restoration of a stable and moisture-free foundation for your flooring.

To dry a subfloor under laminate flooring, first, identify and address the source of moisture. Remove the laminate and allow the subfloor to air dry. Use fans or dehumidifiers to expedite the drying process. Repair any leaks, and ensure proper ventilation to prevent future moisture issues.

1. Identify the Source of Moisture

Before initiating the drying process, it is imperative to pinpoint and rectify the source of moisture. Thoroughly inspect the area for any signs of leaks, water damage, or other potential causes. By addressing these issues at the source, you not only facilitate a successful drying process but also prevent future occurrences of moisture-related problems.

2. Removing Laminate Flooring

To begin the drying process, carefully remove the laminate flooring. Utilize appropriate tools to lift and detach each plank, ensuring minimal damage. It’s essential to handle the laminate with care as you might consider reinstalling it later. Stack the removed laminate in a dry area for potential future use.

3. Allowing Subfloor to Air Dry

With the laminate successfully removed, allow the subfloor to air dry naturally. Promote air circulation by opening windows and doors, facilitating the evaporation of residual moisture. Consider environmental factors like humidity levels and temperature, as they can influence the drying time. Patience during this phase is key to ensuring a thorough and effective drying process.

4. Expedite Drying with Fans and Dehumidifiers

To expedite the drying process, strategically position fans to enhance air circulation throughout the subfloor. This accelerates the natural evaporation of moisture. Additionally, deploy dehumidifiers to extract excess moisture from the air, further reducing the drying time. This combination of tools creates an optimal environment for a swift and efficient subfloor drying experience.

5. Repairing Leaks and Preventing Future Issues

Identifying and promptly repairing leaks or water sources is critical in preventing recurring moisture issues. Whether it’s a plumbing leak or an external water source, addressing these problems at their root ensures a lasting solution. Furthermore, establish proper ventilation in the affected area to mitigate the risk of future moisture-related complications.

6. Inspecting the Subfloor Before Reinstalling Laminate

Once the subfloor is thoroughly dry, conduct a meticulous inspection for any signs of damage or weakness. Address any issues that may have surfaced during the drying process to ensure a stable foundation. Undertake necessary repairs or reinforcement before contemplating the reinstallation of laminate flooring.


The successful drying of a subfloor under laminate flooring demands a systematic and meticulous approach. By identifying and rectifying the source of moisture, carefully removing and allowing the subfloor to air dry, and utilizing fans and dehumidifiers for an expedited process, you can create an optimal environment for effective subfloor restoration. Regular maintenance and vigilance will contribute to the overall health and longevity of your laminate flooring system.