{"id":99724,"date":"2022-09-01T08:00:45","date_gmt":"2022-09-01T12:00:45","guid":{"rendered":"https:\/\/www.solarpowerworldonline.com\/?p=99724"},"modified":"2022-08-30T14:56:34","modified_gmt":"2022-08-30T18:56:34","slug":"solar-spotlight-the-history-and-modern-advantages-of-rail-less-roof-mounts","status":"publish","type":"post","link":"https:\/\/www.solarpowerworldonline.com\/2022\/09\/solar-spotlight-the-history-and-modern-advantages-of-rail-less-roof-mounts\/","title":{"rendered":"Solar Spotlight: The history and modern advantages of rail-less roof mounts"},"content":{"rendered":"<p>In this special edition of <em>Contractor\u2019s Corner<\/em> podcast, rooftop solar racking and attachment manufacturer <a href=\"https:\/\/roof-tech.us\/\">Roof Tech<\/a> shares product insights as a company that\u2019s produced PV mounts for nearly 30 years. We\u2019re joined by Mike Dunlap, general manager of Roof Tech, to talk about the company\u2019s product offerings, where rail-less roof mounts are today and what they mean for project inspections in 2022.<\/p>\n<p>Below is a portion of the company\u2019s Solar Spotlight podcast with Solar Power World, but be sure to listen to the full episode here or on your favorite podcast app.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/w.soundcloud.com\/player\/?url=https%3A\/\/api.soundcloud.com\/tracks\/1334353972%3Fsecret_token%3Ds-iWI1zDlLcTv&amp;color=%23ff5500&amp;auto_play=false&amp;hide_related=true&amp;show_comments=false&amp;show_user=true&amp;show_reposts=false&amp;show_teaser=false\" width=\"100%\" height=\"166\" frameborder=\"no\" scrolling=\"no\"><\/iframe><\/p>\n<div style=\"font-size: 10px; color: #cccccc; line-break: anywhere; word-break: normal; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-family: Interstate,Lucida Grande,Lucida Sans Unicode,Lucida Sans,Garuda,Verdana,Tahoma,sans-serif; font-weight: 100;\"><a style=\"color: #cccccc; text-decoration: none;\" title=\"Contractor's Corner by Solar Power World\" href=\"https:\/\/soundcloud.com\/solarpowerworld\" target=\"_blank\" rel=\"noopener\">Contractor&#8217;s Corner by Solar Power World<\/a> \u00b7 <a style=\"color: #cccccc; text-decoration: none;\" title=\"Solar Spotlight: The history and modern advantages of rail-less roof mounts\" href=\"https:\/\/soundcloud.com\/solarpowerworld\/solar-spotlight-the-history-and-modern-advantages-of-rail-less-roof-mounts\/s-iWI1zDlLcTv\" target=\"_blank\" rel=\"noopener\">Solar Spotlight: The history and modern advantages of rail-less roof mounts<\/a><\/div>\n<p>&nbsp;<\/p>\n<h3>I understand that Roof Tech Inc. has had success with its top-down, self-flashing roof mount, RT-MINI, and the company\u2019s moving more into rail-less mounts with RT-APEX. Why head in this direction now?<\/h3>\n<p>So, actually, just to clarify, Roof Tech is actually primarily a rail-less racking manufacturer. That\u2019s really where we got our start in Japan in the mid-90s \u2014 1994 to be exact, which actually does make us the oldest rail-less manufacturer on Earth, not to mention in North America. But when we came to the United States in 2012 as the first branch off of our parent company in Japan to try to tackle the U.S. market, we approached the market with rail-less, and in 2012 rail-less was a thing that was just unheard of. No one knew what it was very, very early on in the rail-less market in the U.S.<\/p>\n<p>So, a couple of years later we adapted to the market in the U.S. by offering a mount that was meant for rail, because we had this awesome flashing, this flashing we\u2019d been doing since 1994. It\u2019s been a huge success, we have about 70% market share in other parts of the globe and when we came to the U.S. we have this awesome flashing, but in a method that wasn\u2019t quite accepted by the industry. To shorten up that, in about 2016 or so, we ended up coming out with the Mini, or the original product which was an adaptation of one of our rail-less bases to adapt to a rail-mounted system, which had huge success. At that point, everyone was able to take advantage of our proven technology with our flashing and still not have to change the entire game with rail.<\/p>\n<h3>With increasing aluminum prices and supply chain issues in mind, does rail-less make sense in every region?<\/h3>\n<p>Absolutely, and those are basically the two main reasons. The larger companies have chosen to go rail-less. Reducing costs of material and supply chain issues and also internal logistics, as a third main reason. Instead of having a warehouse that stores these giant rails, you can now fit everything into small boxes on a pallet. I think typically right now, you can do roughly one pallet of product \u2014 just a four by four pallet, 6 ft high \u2014 is typically around installs, roughly around 6 to 8 kW per install. That\u2019s amazing to get into one pallet, which actually can be stacked.<\/p>\n<p>The amount of space that you\u2019re trying to warehouse products alone is a huge time saver, huge space saver. The other thing, too, is that aluminum costs have just recently over the past three years increased about 57%. That 57% was actually just within the past 12 months, so this has been a huge cost that we\u2019ve seen spiking numbers in racking in general. But the thing about rail is the majority of their product is extruded aluminum and quite a bit of it. So just in simple analytics, we use less material than rail-less, so we\u2019re able to offer a more fair price for what we\u2019re dealing with, and also, you get to use every single bit of money that you spent in racking.<\/p>\n<h3>What does it mean for solar installers that RT-Apex uses fewer components than its rail-less counterparts?<\/h3>\n<p>As we\u2019ve seen in recent years, other manufacturers are coming out with rail-less products or adapting their rail-less products to be more applicable to the market, and since have almost complicated the system. In Roof Tech, in our origins, it was all about simplicity and effectiveness. Honestly, you can do an entire rail-less system with Roof Tech with three components: A base, an end-clamp and a mid-clamp \u2014 very similar to a rail, although the rail would the bases, the rails, the end-clamps and the mid-clamps. Those three components are the only things you actually need to do a Roof Tech-mounted system. That would be a four-point deck connection system: Bases, ends, mids. That\u2019s all.<\/p>\n<h3>How do inspections differ between rail-based and rail-less installations? And what are mid-point inspections?<\/h3>\n<p>This is I wouldn\u2019t say an anomaly but a recent development over the past few years, that some jurisdictions are now implementing what they would call a mid-point inspection or a bonding inspection. When you\u2019re doing a rail job, what that means in those areas is that you would only be allowed to set your bases, your mounts, your flashings, your L-feet and your rail, but then you\u2019d have to stop the job, wait for the building inspector to come out and do a bonding inspection for continuity. They would have to make sure that everything was properly connected and bonded within that rail system before you lay the modules.<\/p>\n<p>When rail-less comes into play with the mid-point inspection, it\u2019s all of our bonding and all of our continuity comes within the module itself. So because we don\u2019t use rails, we actually use the structural viability of the module itself to make our spans, which also means that we bond through the modules.<\/p>\n<p style=\"text-align: center;\"><em>This podcast is sponsored by Roof Tech, Inc.<\/em><\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-99726 aligncenter\" src=\"https:\/\/www.solarpowerworldonline.com\/wp-content\/uploads\/2022\/08\/RT-logo-w-tag-line-2019-Large-2-500x103.png\" alt=\"\" width=\"500\" height=\"103\" srcset=\"https:\/\/www.solarpowerworldonline.com\/wp-content\/uploads\/2022\/08\/RT-logo-w-tag-line-2019-Large-2-500x103.png 500w, https:\/\/www.solarpowerworldonline.com\/wp-content\/uploads\/2022\/08\/RT-logo-w-tag-line-2019-Large-2-1000x207.png 1000w, https:\/\/www.solarpowerworldonline.com\/wp-content\/uploads\/2022\/08\/RT-logo-w-tag-line-2019-Large-2-1536x317.png 1536w, https:\/\/www.solarpowerworldonline.com\/wp-content\/uploads\/2022\/08\/RT-logo-w-tag-line-2019-Large-2-2048x423.png 2048w, https:\/\/www.solarpowerworldonline.com\/wp-content\/uploads\/2022\/08\/RT-logo-w-tag-line-2019-Large-2-368x76.png 368w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this special edition of Contractor\u2019s Corner podcast, rooftop solar racking and attachment manufacturer Roof Tech shares product insights as a company that\u2019s produced PV mounts for nearly 30 years. We\u2019re joined by Mike Dunlap, general manager of Roof Tech, to talk about the company\u2019s product offerings, where rail-less roof mounts are today and what&hellip;<\/p>\n","protected":false},"author":19854,"featured_media":99725,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":""},"categories":[640,3004,5117,1713,5118],"tags":[2427],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Solar Spotlight: The history and modern advantages of rail-less roof mounts<\/title>\n<meta name=\"description\" content=\"In this special edition of Contractor\u2019s Corner podcast, rooftop solar racking and attachment manufacturer Roof Tech shares 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