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Technical library detail

 
Picking PV




9/2017

28-33

Roof system’s function; rooftop-mounted PV installations; ballasted PV rack systems

Rooftop-mounted photovoltaic (PV) system installations have grown in popularity and acceptance in the U.S. However, with many installations, there appears to be a lack of adequate consideration for the roof systems over which PV system installations are applied. Regardless of the electricity production and associated cost savings a rooftop-mounted PV system can provide, if a rooftop PV system installation results in leakage or reduced roof system performance or service life, the building owner will be unhappy with the outcome. Following is an overview of roof system considerations that need to be evaluated and implemented with rooftopmounted PV system installations.


Note: Documents in this section are provided as Adobe Acrobat PDF files. In order to print and view PDF files, the Adobe Acrobat Reader software/plugin, which runs on Microsoft Windows, Macintosh, OS/2 and various versions of UNIX, must be installed on your computer. Adobe Acrobat Reader is available for download as freeware from Adobe Acrobat's website. Please note that the resolution of on-screen versions is not as high as printed versions of PDF files.





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