{"title":"Fixed Blade Louvres for Plant Rooms","description":"\u003cp\u003eOverheating equipment? Noise and weather getting where they shouldn’t? \u003cstrong data-end=\"110\" data-start=\"71\"\u003eFixed Blade Louvres for Plant Rooms\u003c\/strong\u003e provide constant airflow and reliable protection. Designed to work seamlessly with \u003ca href=\"https:\/\/www.efans.co.uk\/collections\/extractor-fans\"\u003e\u003cstrong data-end=\"212\" data-start=\"194\"\u003eExtractor Fans\u003c\/strong\u003e\u003c\/a\u003e, they keep plant spaces ventilated, compliant and protected—without moving parts or ongoing maintenance headaches.\u003c\/p\u003e\n\u003cp data-end=\"433\" data-start=\"42\"\u003e\u003ca href=\"https:\/\/www.efans.co.uk\/collections\/weather-louvres\"\u003e\u003cstrong\u003eFixed Blade Louvres for Plant Rooms\u003c\/strong\u003e\u003c\/a\u003e are a simple but critical part of effective building ventilation. Working alongside \u003cstrong data-end=\"180\" data-start=\"162\"\u003eExtractor Fans\u003c\/strong\u003e, they allow a steady flow of air into and out of plant rooms while protecting equipment from weather, debris and unwanted access. If overheating, noise escape or compliance concerns are on your radar, the right louvre solution makes all the difference.\u003c\/p\u003e\n\u003cp data-end=\"575\" data-start=\"435\"\u003eThis collection covers robust, specification-ready louvre ventilation panels designed for commercial and industrial plant room applications.\u003c\/p\u003e\n\u003ch2 data-end=\"639\" data-start=\"582\"\u003e\u003cimg alt=\"Aluminium Square Weather Louvre External - eFans Direct Ltd\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/weather-louvre-front.jpg?v=1770649583\"\u003e\u003c\/h2\u003e\n\u003ch2 data-start=\"463\" data-end=\"528\"\u003eHigh-Performance Aluminium Fixed Blade Louvres for Plant Rooms\u003c\/h2\u003e\n\u003cp data-start=\"530\" data-end=\"683\"\u003ePlant rooms generate heat. Equipment needs consistent intake and extract airflow. That’s where \u003ca href=\"https:\/\/www.efans.co.uk\/products\/weather-louvres\"\u003e\u003cstrong data-start=\"625\" data-end=\"674\"\u003ealuminium fixed blade louvres for plant rooms\u003c\/strong\u003e\u003c\/a\u003e come in.\u003c\/p\u003e\n\u003cp data-start=\"685\" data-end=\"935\"\u003eManufactured for durability and corrosion resistance, these systems offer a practical balance between airflow efficiency and rain defence. Ideal for commercial buildings, factories and rooftop enclosures, they’re built to perform under constant load.\u003c\/p\u003e\n\u003ch3 data-start=\"937\" data-end=\"990\"\u003eExternal Louvre Panels for Industrial Ventilation\u003c\/h3\u003e\n\u003cp data-start=\"992\" data-end=\"1217\"\u003e\u003cstrong data-start=\"992\" data-end=\"1018\"\u003eExternal louvre panels\u003c\/strong\u003e are commonly installed in façades, service risers and plant enclosures. Designed to protect against wind-driven rain while maintaining ventilation, they’re a dependable choice for exposed locations.\u003c\/p\u003e\n\u003cp data-start=\"1219\" data-end=\"1276\"\u003eThese \u003cstrong data-start=\"1225\" data-end=\"1248\"\u003eventilation louvres\u003c\/strong\u003e are particularly suited to:\u003c\/p\u003e\n\u003cul data-start=\"1278\" data-end=\"1358\"\u003e\n\u003cli data-start=\"1278\" data-end=\"1294\"\u003e\n\u003cp data-start=\"1280\" data-end=\"1294\"\u003eBoiler rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1295\" data-end=\"1316\"\u003e\n\u003cp data-start=\"1297\" data-end=\"1316\"\u003eChiller compounds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1317\" data-end=\"1341\"\u003e\n\u003cp data-start=\"1319\" data-end=\"1341\"\u003eGenerator enclosures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1342\" data-end=\"1358\"\u003e\n\u003cp data-start=\"1344\" data-end=\"1358\"\u003eData centres\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1360\" data-end=\"1463\"\u003eStrong construction and consistent blade spacing ensure long-term reliability with minimal maintenance.\u003c\/p\u003e\n\u003ch3 data-start=\"1465\" data-end=\"1521\"\u003eDouble Bank Louvre Systems for Enhanced Rain Defence\u003c\/h3\u003e\n\u003cp data-start=\"1523\" data-end=\"1630\"\u003eIn more exposed settings, a \u003cstrong data-start=\"1551\" data-end=\"1573\"\u003edouble bank louvre\u003c\/strong\u003e configuration can provide additional weather resistance.\u003c\/p\u003e\n\u003cp data-start=\"1632\" data-end=\"1840\"\u003eBy using two rows of blades, these systems improve rain rejection while maintaining airflow. They’re often specified where plant equipment must be protected from water ingress without restricting performance.\u003c\/p\u003e\n\u003cp data-start=\"1842\" data-end=\"1953\"\u003eIf your site faces prevailing winds or coastal conditions, this added defence can make a measurable difference.\u003c\/p\u003e\n\u003ch3 data-start=\"1955\" data-end=\"2018\"\u003eLarge-Scale Ventilation Louvres for Rooftop Plant Screening\u003c\/h3\u003e\n\u003cp data-start=\"2020\" data-end=\"2116\"\u003eFor rooftop installations, louvres often serve a dual purpose: ventilation and visual screening.\u003c\/p\u003e\n\u003cp data-start=\"2118\" data-end=\"2371\"\u003eLarge-format \u003cstrong data-start=\"2131\" data-end=\"2160\"\u003elouvre ventilation panels\u003c\/strong\u003e can be manufactured to suit substantial openings, creating a clean, uniform finish while allowing heat to dissipate effectively. This approach helps maintain both operational efficiency and building aesthetics.\u003c\/p\u003e\n\u003ch2 data-end=\"639\" data-start=\"582\"\u003e\u003cimg alt=\"Aluminium Square Weather Louvre External - eFans Direct Ltd\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/weather-louvre-back.jpg?v=1770649583\" style=\"font-size: 0.875rem;\"\u003e\u003c\/h2\u003e\n\u003ch2 data-start=\"2378\" data-end=\"2431\"\u003eTechnical Louvre Ventilation Panels \u0026amp; Construction\u003c\/h2\u003e\n\u003cp data-start=\"2433\" data-end=\"2522\"\u003eSpecification matters. Small design details influence airflow, durability and compliance.\u003c\/p\u003e\n\u003ch3 data-start=\"2524\" data-end=\"2594\"\u003eFixed Blade Construction: Pitch Options and Aerodynamic Efficiency\u003c\/h3\u003e\n\u003cp data-start=\"2596\" data-end=\"2668\"\u003eBlade pitch and profile affect both free area and resistance to airflow.\u003c\/p\u003e\n\u003cp data-start=\"2670\" data-end=\"2851\"\u003eFixed blade systems are engineered to optimise aerodynamics while maintaining structural strength. Wider blade spacing increases airflow, while deeper profiles improve rain defence.\u003c\/p\u003e\n\u003cp data-start=\"2853\" data-end=\"2918\"\u003eWhen selecting \u003cstrong data-start=\"2868\" data-end=\"2907\"\u003eFixed Blade Louvres for Plant Rooms\u003c\/strong\u003e, consider:\u003c\/p\u003e\n\u003cul data-start=\"2920\" data-end=\"3035\"\u003e\n\u003cli data-start=\"2920\" data-end=\"2947\"\u003e\n\u003cp data-start=\"2922\" data-end=\"2947\"\u003eRequired airflow volume\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2948\" data-end=\"2972\"\u003e\n\u003cp data-start=\"2950\" data-end=\"2972\"\u003eFree area percentage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2973\" data-end=\"2999\"\u003e\n\u003cp data-start=\"2975\" data-end=\"2999\"\u003eWeather exposure level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3000\" data-end=\"3035\"\u003e\n\u003cp data-start=\"3002\" data-end=\"3035\"\u003eStructural support requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3037\" data-end=\"3095\"\u003eGetting these details right ensures long-term performance.\u003c\/p\u003e\n\u003ch3 data-start=\"3097\" data-end=\"3161\"\u003eInsulated Louvre Panels for Thermal Performance and Blanking\u003c\/h3\u003e\n\u003cp data-start=\"3163\" data-end=\"3322\"\u003eIn some cases, full airflow isn’t required across the entire opening. An \u003cstrong data-start=\"3236\" data-end=\"3262\"\u003einsulated louvre panel\u003c\/strong\u003e can be used for blanking or to improve thermal performance.\u003c\/p\u003e\n\u003cp data-start=\"3324\" data-end=\"3342\"\u003eThese panels help:\u003c\/p\u003e\n\u003cul data-start=\"3344\" data-end=\"3457\"\u003e\n\u003cli data-start=\"3344\" data-end=\"3377\"\u003e\n\u003cp data-start=\"3346\" data-end=\"3377\"\u003eReduce unwanted heat transfer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3378\" data-end=\"3419\"\u003e\n\u003cp data-start=\"3380\" data-end=\"3419\"\u003eMaintain internal temperature control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3420\" data-end=\"3457\"\u003e\n\u003cp data-start=\"3422\" data-end=\"3457\"\u003eImprove overall energy efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3459\" data-end=\"3558\"\u003eThey’re particularly useful in mixed-use façades where part ventilation, part insulation is needed.\u003c\/p\u003e\n\u003ch2 data-start=\"3565\" data-end=\"3572\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-start=\"3574\" data-end=\"3708\"\u003e\u003cstrong data-start=\"3574\" data-end=\"3628\"\u003eWhat is the difference between louvres and blinds?\u003c\/strong\u003e\u003cbr data-start=\"3628\" data-end=\"3631\"\u003eLouvres are fixed ventilation panels; blinds are adjustable window coverings.\u003c\/p\u003e\n\u003cp data-start=\"3710\" data-end=\"3799\"\u003e\u003cstrong data-start=\"3710\" data-end=\"3748\"\u003eDo aluminium louvres attract heat?\u003c\/strong\u003e\u003cbr data-start=\"3748\" data-end=\"3751\"\u003eThey absorb heat, but finishes reduce heat gain.\u003c\/p\u003e\n\u003cp data-start=\"3801\" data-end=\"3885\"\u003e\u003cstrong data-start=\"3801\" data-end=\"3831\"\u003eWhat are external louvres?\u003c\/strong\u003e\u003cbr data-start=\"3831\" data-end=\"3834\"\u003eVentilation panels installed on building exteriors.\u003c\/p\u003e\n\u003cp data-start=\"3887\" data-end=\"3954\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"3887\" data-end=\"3912\"\u003eAre louvres airtight?\u003c\/strong\u003e\u003cbr data-start=\"3912\" data-end=\"3915\"\u003eNo, they are designed to allow airflow.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"4038\" data-start=\"3971\"\u003e \u003c\/p\u003e","products":[{"product_id":"aluminium-square-weather-louvre-external","title":"Aluminium Square Weather Louvre External","description":"\u003cp\u003eThe Aluminium Square Weather Louvre is a durable external louvre for supply and extract ventilation, with a 45 degree fixed-blade design that resists rain, wind and debris. It is 38mm deep, has a 90% free area, and comes with a bird mesh fitted as standard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e38mm depth\u003c\/li\u003e\n\u003cli\u003e90% free area\u003c\/li\u003e\n\u003cli\u003eAvailable in 10 standard sizes\u003c\/li\u003e\n\u003cli\u003eSupply and extract weather louvre\u003c\/li\u003e\n\u003cli\u003eBird mesh fitted as standard\u003c\/li\u003e\n\u003cli\u003e45 degree fixed blade\u003c\/li\u003e\n\u003cli\u003eAluminium construction, natural aluminium finish\u003c\/li\u003e\n\u003cli\u003eGood protection against rain, wind and debris\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eExternal supply and extract ventilation\u003c\/li\u003e\n\u003cli\u003eResidential and commercial louvre applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003eFixes into the wall aperture. The 45 degree fixed blades and bird mesh protect the opening from rain, wind, debris and birds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed a special size or colour finish? We offer a made-to-order service. Our team can help, call us on 0161 818 2050.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare weather louvre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 to 600mm (10 sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFree area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45° fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBird mesh\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFitted as standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal, supply and extract\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Standard_Weather_Louvre_Sizes_WL38_Dimension_Data_Sheet_1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eStandard Weather Louvre Dimension Datasheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/guide-weather-louvre-fitting.pdf\" target=\"_blank\" rel=\"noopener\"\u003eStandard Weather Louvre Fitting Guide\u003c\/a\u003e\u003c\/p\u003e","brand":"eFans","offers":[{"title":"150mm x 150mm","offer_id":33592706629765,"sku":"53801","price":28.24,"currency_code":"GBP","in_stock":true},{"title":"200mm x 200mm","offer_id":33592695980165,"sku":"53802","price":29.55,"currency_code":"GBP","in_stock":true},{"title":"250mm x 250mm","offer_id":33573779570821,"sku":"53803","price":32.35,"currency_code":"GBP","in_stock":true},{"title":"300mm x 300mm","offer_id":33573779603589,"sku":"53804","price":43.92,"currency_code":"GBP","in_stock":true},{"title":"350mm x 350mm","offer_id":33573779636357,"sku":"53805","price":45.45,"currency_code":"GBP","in_stock":true},{"title":"400mm x 400mm","offer_id":33573779669125,"sku":"53806","price":61.99,"currency_code":"GBP","in_stock":true},{"title":"450mm x 450mm","offer_id":33573779701893,"sku":"53807","price":69.99,"currency_code":"GBP","in_stock":true},{"title":"500mm x 500mm","offer_id":33573779734661,"sku":"53808","price":73.99,"currency_code":"GBP","in_stock":true},{"title":"550mm x 550mm","offer_id":33573779767429,"sku":"53809","price":83.99,"currency_code":"GBP","in_stock":true},{"title":"600mm x 600mm","offer_id":33573779800197,"sku":"53810","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/weather-louvre-front.jpg?v=1770649583"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/collections\/Aluminium_Fixed_Blade_Louvres_Industrial_Use.jpg?v=1771559040","url":"https:\/\/www.efans.co.uk\/collections\/fixed-blade-louvres-for-plant-rooms.oembed","provider":"eFans Direct Ltd","version":"1.0","type":"link"}