{"id":75383,"date":"2026-06-29T05:48:12","date_gmt":"2026-06-29T05:48:12","guid":{"rendered":"https:\/\/megasol.ch\/?p=75383"},"modified":"2026-06-29T05:48:12","modified_gmt":"2026-06-29T05:48:12","slug":"easier-than-you-might-think-solar-modules-on-an-existing-building-envelope","status":"publish","type":"post","link":"https:\/\/megasol.ch\/en\/easier-than-you-might-think-solar-modules-on-an-existing-building-envelope\/","title":{"rendered":"Easier than you might think: solar modules on an existing building envelope"},"content":{"rendered":"<p>[vc_row gap=\"4\" background_type=\"\"][vc_column width=\"2\/3\" css=\".vc_custom_1750684629812{padding-top: 20px !important;padding-bottom: 20px !important;}\"][vc_custom_heading text=\"Easier than you might think: solar modules on an existing building envelope\" font_container=\"tag:h1|text_align:left\" use_theme_fonts=\"yes\" css=\".vc_custom_1782302346980{margin-bottom: 20px !important;}\"][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row background_type=\"\" css=\".vc_custom_1744627684538{margin-bottom: 20px !important;}\"][vc_column width=\"5\/6\"][vc_column_text css=\".vc_custom_1782302358299{margin-top: 10px !important;}\"]Not every PV project starts from scratch. Impressive solutions can also be achieved on existing buildings using standard and bespoke modules. On the roof and on the facade, with framed or frameless modules. And this can usually be done with minimal effort.[\/vc_column_text][\/vc_column][vc_column width=\"1\/6\"][\/vc_column][\/vc_row][vc_row background_type=\"\" css=\".vc_custom_1777032175373{margin-bottom: 20px !important;}\"][vc_column][vc_single_image image=\"75392\" img_size=\"1920x900\" image_hover=\"\"][\/vc_column][\/vc_row][vc_row equal_height=\"yes\" background_type=\"\" css=\".vc_custom_1727442328776{margin-bottom: 10px !important;background-color: #ffffff !important;}\"][vc_column width=\"5\/6\" css=\".vc_custom_1738058725229{padding-top: 20px !important;padding-bottom: 40px !important;}\"][vc_row_inner css=\".vc_custom_1620800857392{margin-top: 30px !important;}\"][vc_column_inner][vc_column_text css=\".vc_custom_1782302395914{margin-bottom: 30px !important;}\"]<\/p>\n<h2><strong>The advantages<\/strong><\/h2>\n<p>Retrofitting solar modules to an existing building envelope has many advantages: the structure remains intact; the modules are mounted using a mounting system or suspended from the fa\u00e7ade. This is often the most direct route to a fully functional system \u2013 without the need for structural alterations or new-build costs. Thanks to standardised sizes within the industry, our modules can be integrated into any structure, offering you maximum flexibility.[\/vc_column_text][vc_column_text css=\".vc_custom_1782308918285{margin-bottom: 30px !important;}\"]<\/p>\n<h2><strong>Two module types, two systems, many possibilities<\/strong><\/h2>\n<p>The choice of module depends not only on the power output but also on the design requirements of the project.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Framed standard modules<\/strong> \u2013 <a href=\"https:\/\/megasol.ch\/en\/high-performance-module-m490\/\">M490<\/a> (490 Wp, all-black) and <a href=\"https:\/\/megasol.ch\/en\/high-performance-module-m460\/\">M460 ZRM+<\/a> (460 Wp, anti-glare) \u2013 are available from stock and cover the majority of BAPV projects. They can be installed using <a href=\"https:\/\/megasol.ch\/en\/lockup-roof\/\">LOCKUP<\/a> (clamping system) or <a href=\"https:\/\/megasol.ch\/en\/lockin\/\">LOCKIN<\/a> (Inlaying system), in landscape or portrait orientation, on roofs and facades.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Frameless glass-on-glass modules<\/strong> offer additional design flexibility: colour, glass surface (e.g. ZRM+, colour-printed, translucent) and size can be customised. This makes them the first choice when the system is intended to blend architecturally into the building \u2013 e.g. on facades that must not look like a \u2018solar installation\u2019. They are installed using <a href=\"https:\/\/megasol.ch\/en\/layin\/\">LAYIN<\/a> (Inlaying system for frameless modules) or LAYUP (clamping system for <a href=\"https:\/\/megasol.ch\/en\/layup-roof\/\">roofs<\/a>\/<a href=\"https:\/\/megasol.ch\/en\/layup-flatport\/\">flat roofs<\/a>). Further information on design options: <a href=\"https:\/\/megasol.ch\/en\/technology\/design\/\"><strong>megasol.ch\/en\/technology\/design<\/strong><\/a>.[\/vc_column_text][vc_column_text css=\".vc_custom_1782304938669{margin-bottom: 30px !important;}\"]<\/p>\n<h2><strong>The substrate determines the mounting method<\/strong><\/h2>\n<p>Before selecting a mounting system, the substrate must be analysed. The most common scenarios:<\/p>\n<p>&nbsp;<\/p>\n\n<table id=\"tablepress-9\" class=\"tablepress tablepress-id-9\">\n<tbody class=\"row-striping\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">Ventilated facade (VHF)<\/td><td class=\"column-2\">Wall bracket (any manufacturer) \u2192 battens or aluminium profile \u2192 sheet metal adapter \u2192 Megasol system<br \/>\n<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">ETICS<\/td><td class=\"column-2\">Threaded rod + injection mortar + universal adapter \u2192 Megasol system<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Concrete \/ brick wall<\/td><td class=\"column-2\">Concrete screws or anchors + universal adapter \u2192 Megasol system<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Sandwich panel \/ trapezoidal sheet metal<\/td><td class=\"column-2\">Fixing to the high rib + sheet metal adapter + cross connector \u2192 Megasol system<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<p>&nbsp;<\/p>\n<p>The following applies to all mounting types: The transition to the Megasol support system is made either directly via a sheet metal adapter or using a universal adapter (Schletter, K2). Wall brackets from Hilti, SG Weber, etc. are tried and tested in professional practice and fully compatible.[\/vc_column_text][vc_column_text css=\".vc_custom_1782307475921{margin-bottom: 30px !important;}\"]<\/p>\n<h2><strong>An overview of the mounting systems<\/strong><\/h2>\n<p><a href=\"https:\/\/megasol.ch\/en\/lockup-roof\/\"><strong>LOCKUP<\/strong><\/a> \u2013 Clamping system for framed modules (30\u201340 mm frame). Suitable for both landscape and portrait orientations. Compatible with Megasol, Schletter and K2 mounting systems.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/megasol.ch\/en\/lockin\/\"><strong>LOCKIN<\/strong><\/a> \u2013 Inlaying system for framed modules. Slide the module in, lower it, fit the locking plate \u2013 done. No tools required for module fixing; modules can be easily replaced during operation.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/megasol.ch\/en\/layup-roof\/\"><strong>LAYUP<\/strong><\/a> \u2013 Clamping system for frameless glass-on-glass modules. Landscape orientation recommended. 4 modules per clamping bracket; allow for a 10 mm expansion joint.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/megasol.ch\/en\/layin\/\"><strong>LAYIN<\/strong><\/a> \u2013 Inlaying system for frameless modules with the same installation procedure as LOCKIN. Ideal for facades with custom modules.[\/vc_column_text][vc_column_text css=\".vc_custom_1782302620365{margin-bottom: 30px !important;padding-top: 15px !important;padding-right: 10px !important;padding-bottom: 15px !important;padding-left: 10px !important;background-color: #ffeadb !important;}\"]<strong>Which system is suitable for which application?<\/strong><\/p>\n<p>Framed modules \u2192 LOCKUP or LOCKIN.<br \/>\nFrameless \/ custom modules \u2192 LAYUP or LAYIN.<br \/>\nFacades with specific design requirements \u2192 LAYIN with custom-configured GG modules.[\/vc_column_text][vc_column_text css=\".vc_custom_1782307661458{margin-bottom: 30px !important;}\"]<\/p>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>BAPV works on almost any substrate \u2013 provided the connection and installation system are properly coordinated. <strong>Framed modules<\/strong> (<a href=\"https:\/\/megasol.ch\/en\/high-performance-module-m490\/\">M490<\/a>, <a href=\"https:\/\/megasol.ch\/en\/high-performance-module-m460\/\">M460 ZRM+<\/a>) with <a href=\"https:\/\/megasol.ch\/en\/lockup-roof\/\">LOCKUP<\/a> or <a href=\"https:\/\/megasol.ch\/en\/lockin\/\">LOCKIN<\/a> are the quickest solution for the majority of projects. <strong>Frameless custom modules<\/strong> with <a href=\"https:\/\/megasol.ch\/en\/layup-roof\/\">LAYUP<\/a> or <a href=\"https:\/\/megasol.ch\/en\/layin\/\">LAYIN<\/a> open up design possibilities \u2013 for facades where the module should blend in rather than stand out. The Megasol team is happy to assist with any technical queries regarding system planning or structural analysis of the fixings.<\/p>\n<p>&nbsp;<\/p>\n<p>PS: This article deliberately focuses on our solutions for surface-mounted photovoltaics. You can find our systems for integrated solar modules <a href=\"https:\/\/megasol.ch\/en\/applications\/\">here<\/a>.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=\"1\/6\" css=\".vc_custom_1729760843775{background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}\"][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=\"50px\"][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Impressive solutions can also be achieved on existing buildings using standard and bespoke modules.<\/p>\n","protected":false},"author":11,"featured_media":75392,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"content-type":"","footnotes":""},"categories":[610],"tags":[3342,3343,3474],"class_list":["post-75383","post","type-post","status-publish","format-aside","has-post-thumbnail","hentry","category-notifications-en","tag-mitteilung-en","tag-mitteilungen-en","tag-blog-en","post_format-post-format-aside"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.9) - 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