| 摘要 |
<p>A cladding board (7, 13, 16, 17) comprises a side with a tongue (9, 23) and a side with a groove (10) or cut-out portion (21) to facilitate the attachment of the cladding board to another such cladding board; wherein said board incorporates a backing layer (2, 8, 19) of primarily rigid foamed plastics material; and a further layer (3, 11, 14, 15, 18) located over said backing layer being primarily of an elastomer; said groove or cut-out portion being of exposed rigid foamed plastics material without any elastomer covering being provided in said groove or cut-out portion; wherein said further layer (3, 11, 14, 15, 18) has greater inherent flexibility than said backing layer (2, 8, 19).</p> |
