{
  "url": "https://www.coloradoremodeling.company/faq/what-subfloor-preparation-is-required-before-laying-natural-stone-tile",
  "name": "What subfloor preparation is required before laying natural stone tile?",
  "@type": "FAQPage",
  "@context": "https://schema.org",
  "speakable": {
    "@type": "SpeakableSpecification",
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      "h1",
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  "mainEntity": [
    {
      "name": "What subfloor preparation is required before laying natural stone tile?",
      "@type": "Question",
      "acceptedAnswer": {
        "text": "Subfloor readiness is the single most critical factor determining whether stone tile will last or fail. Natural stone has zero tolerance for subfloor deflection. Before setting stone, an installer checks joist spacing, spans, and subfloor thickness. In older homes or wider joist spans, the floor often requires adding an extra layer of exterior-grade plywood or specialized uncoupling membranes like Schluter-DITRA. Installing natural stone directly over a single layer of standard subflooring or uneven framing will lead to cracked grout joints and loose tiles over time. Proper preparation ensures a flat, rigid substrate designed to carry the substantial dead weight of stone.",
        "@type": "Answer",
        "description": "Subfloors must be structurally rigid with zero deflection, requiring verified joist spans, proper subfloor thickness, and cement board or an uncoupling membrane."
      }
    }
  ],
  "description": "Subfloors must be structurally rigid with zero deflection, requiring verified joist spans, proper subfloor thickness, and cement board or an uncoupling membrane"
}