| 摘要 |
<p>An intermediate floor which shields a cementitious, wooden or tile top floor from the cracking of the original floor and comprises an asphaltic layer (12) having on its upper surface finely divided stone (13) and an open mesh layer on the stone layer (13). Where the original floor (21) is concrete, the mesh layer (22) is flexible plastic. Where the original floor (11) is wood, the mesh layer (14) is galvanized metal, staples (15) being provided to hold the asphalt (12) and mesh layers (14) on the original floor (11).</p> |
