Can Hardwood Flooring be Installed Directly on Cement in a Second-Floor Condo?

Yes, it is possible to install hardwood flooring directly onto a cement subfloor in a second-floor condo, provided you follow the correct procedures and consider various factors. However, several important considerations are crucial to ensure the longevity and stability of the flooring.

Moisture Barrier

One of the most critical factors to consider is the potential for moisture retention in concrete. Since concrete can absorb and retain moisture, it can be detrimental to the integrity of hardwood flooring. It is essential to test the moisture levels of the concrete before any installation occurs. If moisture is present, a moisture barrier, such as a polyethylene sheet, should be installed to protect the hardwood. This barrier helps prevent moisture damage and ensures a sturdy base for the hardwood to rest on.

Type of Hardwood

The type of hardwood you choose will also impact the success of the installation. For a concrete subfloor, it is advisable to use engineered hardwood rather than solid hardwood. Engineered hardwood is more stable and less susceptible to changes in humidity and temperature, making it a better choice for concrete subfloors. The layers of veneer and core material in engineered hardwood provide greater stability and durability against environmental changes.

Installation Method

There are different methods to install hardwood on a concrete subfloor:

Glue-Down Method: This involves using a special adhesive to glue the hardwood planks directly to the concrete. This method is common for concrete subfloors as it provides a secure and stable bond. It is important to use a high-quality adhesive suitable for concrete subfloors to ensure longevity. Floating Method: Engineered hardwood can be installed as a floating floor, where the planks are not attached to the subfloor but instead click together and rest on a foam underlayment. This method allows for expansion and contraction. A high-quality foam underlayment helps provide cushioning and stability, reducing the risk of cracking or warping.

Acclimation

Before installation, it is crucial to allow the hardwood to acclimate to the room's temperature and humidity for several days. This process helps the flooring adjust to the environmental conditions of the room. Proper acclimation prevents warping or gaps after installation, ensuring a smooth and even surface.

Soundproofing

In a condo setting, sound transmission can be a significant concern. Therefore, it is advisable to consider adding a soundproofing underlayment to reduce noise between floors. This step not only enhances the comfort of living in the second-floor condo but also improves the overall sound insulation within the unit.

Local Building Codes

Before proceeding with any installation, it is essential to check with your condo association or local building codes to ensure compliance with any regulations regarding flooring installation. Adhering to these guidelines helps prevent any legal issues and ensures that the installation meets all necessary safety and structural requirements.

By following these guidelines, you can successfully install hardwood flooring over a cement subfloor in your second-floor condo. Make sure to carefully consider the moisture barrier, type of hardwood, installation method, acclimation period, and local building codes to ensure a successful and long-lasting installation.

For more tips on hardwood installation techniques, explore my Quora Profile section on flooring. This resource provides valuable insights and additional guidance to help you achieve the best possible results.