摘要 |
<p>A subfloor component comprises a hardboard panel having first and second opposing faces and a plurality of intersecting grooves to define, in cross-section, a plurality of pedestals having walls that extend into the panel from the first face generally toward the second face. At least one of the pedestals has at least one wall that is undercut. The subfloor component also comprises a film of substantially moisture-impervious material attached to the first face of the panel and that conforms to the tops and walls of the pedestals and to the bottoms of the grooves.</p> |