{"product_id":"aluminium-coping-corner-90-intern","title":"3mm Aluminium Sloping Coping – 90° Internal Corner | 100mm External Leg","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90-intern\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e3mm aluminium coping corner\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e is designed for creating a neat 90° internal corner detail on sloping coping systems. It is suitable for parapet walls, roof edges, flat roof upstands and architectural roofline projects where two coping runs meet at an internal angle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMade from 3mm aluminium, this coping corner provides a strong, clean and low-maintenance finish for UK residential and commercial projects. The 100mm external leg helps create a consistent edge detail, while the sloping profile supports water run-off from exposed wall tops. It works well alongside matching\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-sloping-coping\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ealuminium sloping copings\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e,\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-copings\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ealuminium coping systems\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, and related roofline products.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe product is available in multiple size options from 510mm to 1060mm, with RAL colour selection available to suit surrounding\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/fascia-soffits\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efascia and soffits\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, cladding, downpipes or\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/rainwater-goods\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003erainwater goods\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e. For colour planning, you can also check the official\u003c\/span\u003e\u003ca href=\"https:\/\/www.ral-farben.de\/en\/all-ral-colours\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eRAL colour information\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e before confirming the finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhere This Product Is Commonly Used\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis aluminium coping corner is commonly used by roofers, builders, contractors, installers and homeowners working on flat roof edges, parapet walls, extensions, renovations and commercial roofline details. It is especially useful where two\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-sloping-coping\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003esloping aluminium coping\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e runs meet at a 90° internal angle and a clean corner finish is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor larger projects, it can be used alongside matching straight coping lengths, stop ends, external corners, fixings and sealants. If the project also includes drainage upgrades, the finish can be coordinated with aluminium gutters and downpipes from the\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/rainwater-goods\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003erainwater goods\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e range.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Aluminium Is a Good Choice\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAluminium is a practical material for coping systems because it is lightweight, corrosion resistant and suitable for exposed roofline areas. The Council for Aluminium in Building explains that aluminium naturally forms a protective oxide coating and is highly corrosion resistant, which makes it useful for products where protection and conservation are important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis makes aluminium a strong fit for UK parapet walls, flat roof edges and exposed building details. It does not rust like some ferrous metals, requires low maintenance when installed correctly, and can be finished in a wide range of colours. For buyers comparing roofline materials, aluminium offers a clean balance of durability, manageable weight and modern appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFinish and Colour Options\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis product includes a RAL colour selection option, allowing the coping corner to match or coordinate with other aluminium roofline products. A matching finish can be useful when the project includes\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/fascia-soffits\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efascia and soffits\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, aluminium copings, cladding, downpipes, trims or architectural metalwork.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor best visual consistency, use the same RAL colour across the full coping system where possible. Buyers can refer to the official\u003c\/span\u003e\u003ca href=\"https:\/\/www.ral-farben.de\/en\/all-ral-colours\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eRAL colour page\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e for general colour reference, but final colour selection should still be confirmed before ordering because screen colours may not always match the finished product exactly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eInstallation and Ordering Notes\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBefore ordering, measure the wall width and corner detail carefully to make sure the selected size is suitable. Internal corners need to work correctly with the straight coping lengths on both sides, so check the full run, joint positions and any adjoining stop ends before placing the order.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYou may also need to consider fixings, joints, sealing method, outlets, abutments, external corners and any other accessories required for the wider coping system. Where roof drainage is part of the project, buyers should also consider relevant UK drainage guidance, including\u003c\/span\u003e\u003ca href=\"https:\/\/www.gov.uk\/government\/publications\/drainage-and-waste-disposal-approved-document-h\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eApproved Document H\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIf you are unsure about sizing, colour matching, accessories or compatibility,\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/contact\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003econtact Online Metal Store Ltd\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e before placing the order.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Buy From Online Metal Store Ltd\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eOnline Metal Store Ltd supplies aluminium architectural products for UK homeowners, installers, builders, roofers and construction professionals. The company offers\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-copings\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ealuminium coping systems\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e,\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/fascia-soffits\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efascia and soffits\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e,\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/rainwater-goods\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003erainwater goods\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, trims, flashings and bespoke aluminium items for different project needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe business supports customers with product dimensions, RAL colour selection, custom fabrication and order handling. Products are prepared with a focus on accurate cutting, neat finishing, coating quality and secure packaging, helping buyers receive a consistent product for their project.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFAQs\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhat is this aluminium coping corner used for?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIt is used to form a 90° internal corner on a\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-sloping-coping\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003esloping aluminium coping system\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, usually on parapet walls, roof edges and flat roof upstands.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eCan I use this with other aluminium coping products?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes. It is designed to work as part of an aluminium coping system. You can view the wider\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-copings\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ealuminium copings\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e range to match straight lengths, stop ends and other corner details.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eCan I choose a RAL colour?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes. A RAL colour option is available. You can use the official\u003c\/span\u003e\u003ca href=\"https:\/\/www.ral-farben.de\/en\/all-ral-colours\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eRAL colours\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e page as a general reference before confirming your preferred finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eIs aluminium suitable for UK weather?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes. Aluminium is widely used for external building products because it is lightweight, corrosion resistant and low maintenance. The Council for Aluminium in Building provides more information about the\u003c\/span\u003e\u003ca href=\"https:\/\/c-a-b.org.uk\/aluminium-benefits\/\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ebenefits of aluminium\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eShould I check drainage before ordering?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes. The sloping profile helps support water run-off, but the full roofline and rainwater design should be checked as part of the wider project. For drainage-related planning, you can review UK\u003c\/span\u003e\u003ca href=\"https:\/\/www.gov.uk\/government\/publications\/drainage-and-waste-disposal-approved-document-h\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eApproved Document H\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhat should I check before buying?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCheck the wall width, internal corner angle, coping size, RAL colour, required joints, fixings, stop ends and compatibility with the rest of the roofline system. For project support, use the\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/contact\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eOnline Metal Store contact page\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eChoose the required size and RAL colour before ordering. If you are unsure about measurements, finish options or matching components,\u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/contact\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003econtact Online Metal Store Ltd\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e for guidance before placing your order.\u003c\/span\u003e\u003c\/p\u003e","brand":"Online Metal Store Ltd","offers":[{"title":"510mm","offer_id":42314518069332,"sku":"AC3-I90-100-510","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"535mm","offer_id":42314518102100,"sku":"AC3-I90-100-535","price":95.4,"currency_code":"GBP","in_stock":true},{"title":"560mm","offer_id":42314518134868,"sku":"AC3-I90-100-560","price":100.8,"currency_code":"GBP","in_stock":true},{"title":"585mm","offer_id":42314518167636,"sku":"AC3-I90-100-585","price":106.2,"currency_code":"GBP","in_stock":true},{"title":"610mm","offer_id":42314518200404,"sku":"AC3-I90-100-610","price":111.6,"currency_code":"GBP","in_stock":true},{"title":"635mm","offer_id":42314518233172,"sku":"AC3-I90-100-635","price":117.0,"currency_code":"GBP","in_stock":true},{"title":"660mm","offer_id":42314518265940,"sku":"AC3-I90-100-660","price":122.4,"currency_code":"GBP","in_stock":true},{"title":"685mm","offer_id":42314518298708,"sku":"AC3-I90-100-685","price":127.8,"currency_code":"GBP","in_stock":true},{"title":"710mm","offer_id":42314518331476,"sku":"AC3-I90-100-710","price":133.2,"currency_code":"GBP","in_stock":true},{"title":"735mm","offer_id":42314518364244,"sku":"AC3-I90-100-735","price":138.6,"currency_code":"GBP","in_stock":true},{"title":"760mm","offer_id":42314518397012,"sku":"AC3-I90-100-760","price":144.0,"currency_code":"GBP","in_stock":true},{"title":"785mm","offer_id":42314518429780,"sku":"AC3-I90-100-785","price":149.4,"currency_code":"GBP","in_stock":true},{"title":"810mm","offer_id":42314518462548,"sku":"AC3-I90-100-810","price":154.8,"currency_code":"GBP","in_stock":true},{"title":"835mm","offer_id":42314518495316,"sku":"AC3-I90-100-835","price":160.2,"currency_code":"GBP","in_stock":true},{"title":"860mm","offer_id":42314518528084,"sku":"AC3-I90-100-860","price":165.6,"currency_code":"GBP","in_stock":true},{"title":"885mm","offer_id":42314518560852,"sku":"AC3-I90-100-885","price":171.0,"currency_code":"GBP","in_stock":true},{"title":"910mm","offer_id":42314518593620,"sku":"AC3-I90-100-910","price":176.4,"currency_code":"GBP","in_stock":true},{"title":"935mm","offer_id":42314518626388,"sku":"AC3-I90-100-935","price":181.44,"currency_code":"GBP","in_stock":true},{"title":"960mm","offer_id":42314518659156,"sku":"AC3-I90-100-960","price":187.2,"currency_code":"GBP","in_stock":true},{"title":"985mm","offer_id":42314518691924,"sku":"AC3-I90-100-985","price":192.6,"currency_code":"GBP","in_stock":true},{"title":"1010mm","offer_id":42314518724692,"sku":"AC3-I90-100-1010","price":198.0,"currency_code":"GBP","in_stock":true},{"title":"1035mm","offer_id":42314518757460,"sku":"AC3-I90-100-1035","price":203.4,"currency_code":"GBP","in_stock":true},{"title":"1060mm","offer_id":42314518790228,"sku":"AC3-I90-100-1060","price":208.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/1588\/2580\/files\/Aluminium_20Coping_20-_20100mm_20-_20125mm_20External_20Leg_20-_2090-Degree_20Internal_20Corner-8.png?v=1774517067","url":"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90-intern","provider":"Online Metal Store Ltd","version":"1.0","type":"link"}