Assessing the Feasibility of Self-Leveling Over Wooden Floors
Applying a self-leveling compound over a solid timber ground floor is possible under specific conditions, provided you select the appropriate product and follow best practices. When done correctly, this approach can create a smooth, even surface suitable for new flooring installations without the need for extensive removal of the existing floor.
Typically, it is advisable to remove existing coverings before applying self-leveling compounds. However, if removal proves difficult or impractical, a properly chosen latex-based self-levelling compound can be used directly onto the wooden surface, especially if the floor is in good condition. The key is to ensure the sub-floor is thoroughly clean and dry prior to application.
Suitable Conditions for Direct Self-Leveling
- No gaps or gaps between parquet or timber planks: This minimizes the risk of the compound seeping through or causing unevenness.
- Minimal movement in the floor: Solid timber floors on the ground level are typically stable, reducing concerns about future shifting.
Recommended Products and Techniques
One effective product I have used successfully is Arditex NA, a two-part latex-based self-levelling compound suitable for various substrates, including upper floors. Unlike water-mixed compounds, latex-based products do not alter the moisture content of the wooden sub-floor, making them ideal for direct application.
Additional Recommendations
For optimal results, consider removing the existing flooring if feasible. If removal is too labor-intensive, ensure you select a high-quality latex-based self-levelling compound like Arditex NA. Make sure to use the version that includes a tub of latex additive, not the one mixed solely with water, to maintain flexibility and compatibility with the wooden surface.
Using a latex-based compound will also accommodate minor movement in the floor joists, especially on the first floor, where some slight shifting may occur. Proper preparation, product selection, and application techniques are essential to achieve a durable, level surface over your solid timber ground floor.