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A subfloor's lifespan can range from 30 years to the entire life of the house, which is often between 50 and 100 years. The actual longevity depends on the material and its protection from damage. For example, while OSB may last longer than plywood, it is not the best choice for heavy flooring like ceramic tile. The most critical factor is moisture; a subfloor that avoids water damage, mold, and termites can last for decades. However, prolonged exposure to moisture will cause it to warp, rot, or grow mold, significantly shortening its life.

To clean a subfloor after removing carpet, start by removing any leftover debris, such as stuck-on underlay, nails, or staples. Next, thoroughly vacuum the subfloor to eliminate dust, dirt, and loose particles. If adhesive residue remains, you can use an adhesive remover, a scraper, or a sander to gently lift it off. Finally, clean the surface by mopping or wiping it down with a damp rag and allow it to dry completely. This preparation is essential for ensuring new flooring adheres properly and to prevent bumps or wrinkles from forming.

The lifespan of tile flooring can vary significantly based on the material and maintenance. Generally, tile flooring can last anywhere from 10 to 30 years, but high-quality, well-maintained ceramic tile can last 75 to 100 years. To achieve a longer lifespan, you should clean the tiles and grout regularly, reseal the grout annually, keep the floor dry, and avoid placing extremely heavy items on it to prevent cracking. Choosing a high-quality tile (Grade 1) will also contribute to its longevity.

A laminate floor will lift if it hasn’t been installed with the proper expansion gaps around the room’s perimeter. Laminate flooring naturally expands and contracts when indoor temperatures fluctuate, and without adequate room for expansion, the planks can lift off the subfloor. To avoid this, ensure your flooring installer knows to leave the proper expansion gaps.