Glossary: Excessively Porous Subfloor
An excessively porous subfloor refers to any subfloor that has an extremely rough surface, such as concrete that has recently been shot-blasted, scarified or mechanically etched. Also, any subflooring that has leftover residue of old latex adhesive, recent skimcoat or cementitious underlayment application, rough wood subflooring, etc.
Such subfloor conditions can over-absorb adhesives and create bonding issues and lead to the necessity of using sealers or a greater amount of adhesive to properly adhere floorcoverings.
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