FM Approvals 4478
- Roof-Mounted Rigid Photovoltaic Module Systems
- standard by FM Approvals, 2021
- Category: FM Approvals
$50.00
$25.00
This standard applies to all rigid photovoltaic module systems intended to be 1) mechanically fastened through or attached to an FM Approved single-ply, polymer-modified bitumen sheet, built-up roof, liquid applied roof cover or steep slope roof (mechanically attached only), 2) mechanically fastened to a metal panel roof cover assembly using clamps or other types of fasteners or 3) loose laid and ballasted over an FM Approved fully adhered single-ply, polymer-modified bitumen sheet or built-up roof cover assembly.
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