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加拿大建筑材料中心评估单体SIP板房屋系统

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加拿大建筑材料中心 (CCMC) 给一个产品做评估的时候,提议其建筑者使用一种单骨柱结构保温板(SIP)系统,而不是现在用的这种传统的间距在400-600mm的多骨柱结构系统。现在越来越多的建设公司开始使用SIP结构系统,墙体、屋顶、以及地板等。

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覆盖件与预应力结构骨柱可同时用于墙壁和房屋屋面。

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CCMC's evaluation confirms that the structural reliability of the PlastiSpan SIP system is equivalent to the structural design principles of CSA O86, the engineering design code for wood. The panels also meet the air leakage requirements described in the National Building Code (NBC), as well as the vapour diffusion control requirements when there is painted drywall on the warm side of the wall assembly and vinyl siding on the cold side.

In addition, CCMC's report looks at the use of the PlastiSpan SIP system without structural ribs in post and beam or timber frame construction (see photo). The report confirms that the wall tables and roof span charts produced with Plasti-Fab's reliability-based model are accurate and comply with the intent of the NBC. It also confirms the system's seismic performance relative to conventional wood-frame shear walls.

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PLASTISPAN SIP SYSTEM WALL PANELS


One of the limitations noted in the report concerns roof applications: if the top OSB layer becomes wet during construction, it must dry before installing the low-permeance roof cladding to reduce the risk of trapped moisture. Thus, in SIP construction, there must be extra attention to detail to ensure that drying can occur. In conventional roof construction, trapped moisture is less of an issue because the sheathing can dry toward the attic space. Of course, it is always considered standard good practice for all wood-based products to prevent excessive wetting in the first place.

CCMC Evaluation Report No. 13016-R is available on the Web at: http://irc.nrc-cnrc.gc.ca/ccmc/home_e.html and upon request from CCMC. For further information, contact Mr. Bruno Di Lenardo, CCMC, at (613) 993-7769, fax (613) 952-0268, or e-mail 该E-mail地址已受到防止垃圾邮件机器人的保护,您必须启用浏览器的Java Script才能看到。 .