发明名称 |
SYSTEM, METHOD AND APPARATUS FOR FIBER CEMENT UNDERLAYMENT OR BACKERBOARD |
摘要 |
<p>A building sheet includes a substantially flat board having a front surface, a back surface and a thickness defined therebetween. At least one of the front and back surfaces defines a surface direction. The thickness defines a thickness direction that is substantially perpendicular to the surface direction. Recesses are formed in at least one of the front and back surfaces. The recesses have a maximum dimension in the surface direction of less than 3/8 inch, such that each recess is too small to receive a head of the fastener.</p> |
申请公布号 |
WO2013154940(A1) |
申请公布日期 |
2013.10.17 |
申请号 |
WO2013US35469 |
申请日期 |
2013.04.05 |
申请人 |
CERTAINTEED CORPORATION |
发明人 |
GILBERT, THOMAS C.;BATTLES, ROBERT E.;STEELE, DAVID H. |
分类号 |
E04F15/022 |
主分类号 |
E04F15/022 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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