The subfloor is the foundation of any successful flooring project, and signs of failure must be addressed before new material is installed. Indicators of an unsuitable subfloor include 'soft spots' caused by structural decay, excessive movement that creates bounce when walked upon, or moisture saturation that could lead to mold. For concrete, surface irregularities like large cracks, spalling, or high moisture emissions are critical red flags. A professional evaluation can determine if the subfloor requires minor repairs or a complete overhaul. Skipping these essential preparations will almost certainly lead to visible defects in the new flooring, voiding warranties and creating significant long-term repair costs.
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What indicators suggest that an existing subfloor is unsuitable for new flooring?
Indicators that a subfloor is unsuitable include excessive deflection or bouncing, rot or moisture damage, significant unevenness, cracked concrete, or an inability to bond with required adhesives. These issues must be resolved to prevent future flooring failure.