{"id":104451,"date":"2023-12-07T08:00:23","date_gmt":"2023-12-07T13:00:23","guid":{"rendered":"https:\/\/\/?p=104451"},"modified":"2023-11-29T11:00:25","modified_gmt":"2023-11-29T16:00:25","slug":"solar-spotlight-solar-mounting-hits-the-deck","status":"publish","type":"post","link":"https:\/\/\/2023\/12\/solar-spotlight-solar-mounting-hits-the-deck\/","title":{"rendered":"Solar Spotlight: Solar mounting hits the deck"},"content":{"rendered":"<p class=\"p1\">Over the last several years, the shape and size of mounts used in residential solar projects have changed to a lower profile attachment that can be installed over the shingle instead of slid underneath like metal flashing sheets. The next obstacle in residential solar design was expanding these top-mounted attachments that could primarily be installed on rafters onto the decking surface of the roof. Ryan Estrada, technical program outreach manager, and Nico Martinez, senior product manager at <a href=\"https:\/\/unirac.com\/\">Unirac<\/a>, are here to discuss what\u2019s new with solar mounting and, more specifically, the advancement of direct-to-deck attachments.<\/p>\n<p class=\"p2\">A written portion of this podcast is below but be sure to listen to the full episode on your preferred podcast service.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/w.soundcloud.com\/player\/?url=https%3A\/\/api.soundcloud.com\/tracks\/1677583383%3Fsecret_token%3Ds-WLf8shnUKN6&amp;color=%23ff5500&amp;auto_play=false&amp;hide_related=false&amp;show_comments=true&amp;show_user=true&amp;show_reposts=false&amp;show_teaser=true\" 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: Solar mounting hits the deck\" href=\"https:\/\/soundcloud.com\/solarpowerworld\/solar-spotlight-solar-mounting-hits-the-deck\/s-WLf8shnUKN6\" target=\"_blank\" rel=\"noopener\">Solar Spotlight: Solar mounting hits the deck<\/a><\/div>\n<p>&nbsp;<\/p>\n<h3 class=\"p1\"><em>SPW<\/em>: What are the latest trends in solar PV racking technology?<\/h3>\n<div id=\"attachment_104456\" style=\"width: 160px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-104456\" class=\"size-thumbnail wp-image-104456\" src=\"https:\/\/\/wp-content\/uploads\/2023\/11\/Nico-Martinez-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" srcset=\"https:\/\/\/wp-content\/uploads\/2023\/11\/Nico-Martinez-150x150.jpg 150w, https:\/\/\/wp-content\/uploads\/2023\/11\/Nico-Martinez-238x238.jpg 238w, https:\/\/\/wp-content\/uploads\/2023\/11\/Nico-Martinez.jpg 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><p id=\"caption-attachment-104456\" class=\"wp-caption-text\">Nico Martinez, senior product manager, Unirac.<\/p><\/div>\n<p class=\"p1\"><i>Nico Martinez: <\/i>We\u2019re starting to see rail-less make a little bit of a comeback here in the solar racking industry. We\u2019ve also seen a big push for open channel rail systems, both of which we provide here at Unirac. But rail-less, we\u2019re starting to see a lot of of our competitors starting to focus on those types of systems. There are some big pros there. It can help reduce the number of attachments, which as we all know, one of the ways that your crews get called back to a house is with roof leaks. So, if you can reduce the number of attachments that are penetrating that roof, that really helps. Then it also helps reduces labor time for crews.<\/p>\n<p class=\"p1\"><i>Ryan Estrada: <\/i>Another trend we\u2019re seeing is polymeric or chemical flashings for roof attachments. What\u2019s gained a lot of popularity now is the butyl mastic roof attachments, and these will go directly on top of the shingle. So, the benefit there is you don\u2019t have to pry nails, you don\u2019t have to risk damaging shingles in cold weather when it gets really rigid. You don\u2019t have to pop up nails and create holes and then backfill them, and it\u2019s been tested and tried and true in different industries, and now it\u2019s making a comeback in solar power on top of your comp shingles.<\/p>\n<h3 class=\"p1\">How do racking manufacturers ensure due diligence in testing direct-to-deck connections?<\/h3>\n<div id=\"attachment_104457\" style=\"width: 160px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-104457\" class=\"size-thumbnail wp-image-104457\" src=\"https:\/\/\/wp-content\/uploads\/2023\/11\/Ryan-Estrada-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" srcset=\"https:\/\/\/wp-content\/uploads\/2023\/11\/Ryan-Estrada-150x150.jpg 150w, https:\/\/\/wp-content\/uploads\/2023\/11\/Ryan-Estrada-238x238.jpg 238w, https:\/\/\/wp-content\/uploads\/2023\/11\/Ryan-Estrada.jpg 500w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><p id=\"caption-attachment-104457\" class=\"wp-caption-text\">Ryan Estrada, technical program outreach manager, Unirac.<\/p><\/div>\n<p class=\"p1\"><span class=\"s1\"><i>RE: <\/i>An interesting topic here because the typical test standards used in the industry are made for connection into the rafter. And so the test standards haven\u2019t fully caught up to what the industry is doing with deck attachment. So your typical rafter-attached test standards are ASTM 7147, which is a specification for testing and establishing allowable loads of joist hangers. And then there\u2019s 1761 which is the standard test for mechanical fasteners and wood-based materials. The gaps that we see in using these standards for direct deck is that it\u2019s really limited.<\/span><\/p>\n<p class=\"p1\"><i>NM: <\/i>What we\u2019ve discovered when we\u2019re doing some side-by-side comparison testing with our competitors, especially on the direct-to-deck attachments, is that these loads that some of our competitors are claiming, No. 1, we\u2019re having a hard time meeting, and No. 2, it\u2019s in a very controlled laboratory setting. What we really tried to focus on in our testing \u2014 and this is why we\u2019ve taken a very strict engineering approach, I know some people may think we might be a little overly conservative sometimes \u2014 but the reason that we do that is we don\u2019t want our cause the issues on your roof, on your solar, because once that starts happening, it\u2019s not just bad for Unirac, but it\u2019s bad for the entire industry.<\/p>\n<h3 class=\"p1\"><span class=\"s1\">Why does Unirac go above and beyond the minimum building code requirements?<\/span><\/h3>\n<p class=\"p1\"><span class=\"s1\"><i>RE: <\/i>We can all agree that we\u2019re going to have more severe weather events in the future. And we\u2019re seeing a high frequency of severe weather, and we expect that to continue. Roofs are designed to withstand uniform loading, so uniform snow loads or uniform wind loads. When you attach direct to deck, you\u2019re turning that uniform load into point loads. Once you reach a certain threshold, you can actually start to weaken that roof. We really do our research and due diligence in identifying that and we\u2019re not just making solar mounting systems, it\u2019s an ecosystem that\u2019s tied in with building and construction, we have to follow the building codes.<\/span><\/p>\n<p class=\"p2\">Not all direct-to-deck connections are bad, right? It\u2019s just a matter of knowing what the limit is and what that threshold is.<\/p>\n<p style=\"text-align: center;\"><em>This podcast is sponsored by Unirac<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Over the last several years, the shape and size of mounts used in residential solar projects have changed to a lower profile attachment that can be installed over the shingle instead of slid underneath like metal flashing sheets. The next obstacle in residential solar design was expanding these top-mounted attachments that could primarily be installed&hellip;<\/p>\n","protected":false},"author":19854,"featured_media":104458,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_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":"","footnotes":""},"categories":[640,3004,5117,1713,1690,5118,3011],"tags":[],"class_list":{"2":"type-post","14":"entry","15":"has-post-thumbnail"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Solar Spotlight: Solar mounting hits the deck<\/title>\n<meta name=\"description\" content=\"Over the last several years, the shape and size of mounts used in 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