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The pros and cons of hidden fasteners vs. exposed fasteners differ. Planning staff <br />discussed with Building Department staff, researched, and viewed several websites and <br />online videos. Suggested online videos for Board members to watch include: <br />• https://sheffieldmetaIs.com/learning-center/standing-seam-vs-exposed- <br />fastener-metal-roofing/ <br />• https://youtu.be/-4i8UZQ07X0 <br />Attachment A shows a side by side visual comparison of hidden vs exposed fasteners. <br />Attachment B shows a side by side comparison of pros and cons of each product. As you <br />can see, there are pros and cons to each product. <br />"M rExposed <br />Hidden Fastener <br />(i.e. Standing Seam) <br />Fastener <br />Weather Tightness <br />X <br />Easier to Install <br />X <br />Cost <br />X <br />Maintenance <br />X <br />Low Sloped Roof <br />X <br />Panel Strength <br />X <br />Aesthetics <br />X <br />Compatibility with solar <br />panels and snow retention <br />X <br />X <br />Credit to Metal Roofing Learning Channel August 31, 2020 <br />Staff s opinion is that standing seam provides a higher aesthetic value with less <br />maintenance. Exposed fastener systems require proper installation and more <br />maintenance. <br />Staff suggests the following amendment language if the Board decides to proceed with an <br />amendment: <br />§ 1007.043 GENERAL BUILDING AND USE PROVISIONS. <br />(3) Building Type and Construction. <br />2 <br />