{"product_id":"aluminium-coping-corner-135","title":"2mm Aluminium Sloping Coping – 135° External Corner | 100mm External Leg","description":"\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eThe product can be powder coated to suit the project colour schedule, from anthracite grey on modern extensions to bespoke shades for architectural schemes. A matching RAL finish helps the corner blend with coping lengths, flashings, trims and rainwater goods, which is especially important on visible developments where inconsistent colours can make the finished work look pieced together.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eLightweight and Practical on Site\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eA 2mm aluminium corner gives a strong feel without the handling problems that can come with heavier materials. It is easier to lift, position and adjust on site, which helps when working at roof level or when access is limited on tight domestic streets in places like Southend, Brentwood or East London.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003e100mm External Leg for Strong Visual Coverage\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eThe 100mm external leg helps cover the face of the wall below the coping line and gives the roof edge a more finished look. It is particularly useful where the external face needs a clean drop over the wall edge, rather than a shallow cover that exposes uneven masonry, render or insulation build-up.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eUK Manufactured with Fast Delivery\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eBecause this component is manufactured in Chelmsford, Essex, it supports shorter supply chains for UK projects. That is useful for contractors who need replacement corners, extra fittings or matching parts without waiting on long overseas lead times. It also gives buyers a clearer route if they need advice before ordering.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eProduct name: \u003c\/b\u003e2mm Aluminium Sloping Coping 135° External Corner | 100mm External Leg\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eMaterial: \u003c\/b\u003eAluminium\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eThickness: \u003c\/b\u003e2mm\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eCorner type: \u003c\/b\u003e135° external corner for sloping coping runs\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eExternal leg: \u003c\/b\u003e100mm\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eProfile: \u003c\/b\u003eSloping coping corner for angled parapet wall junctions\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eFinish: \u003c\/b\u003ePowder coated in any RAL colour\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003ePrice shown on current product page: \u003c\/b\u003eFrom £57.60 ex VAT, £69.12 inc VAT\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eManufacturing location: \u003c\/b\u003eChelmsford, Essex, United Kingdom\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eAvailable sizes: \u003c\/b\u003e185mm, 210mm, 235mm, 260mm, 285mm, 310mm, 335mm, 360mm, 385mm, 410mm, 435mm, 460mm, 485mm, 510mm, 535mm, 560mm, 585mm, 610mm, 635mm, 660mm, 685mm, 710mm, 735mm, 760mm, 785mm, 810mm, 835mm, 860mm, 885mm\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003eImportant measuring note: \u003c\/b\u003eConfirm the wall width, build-up, overhang requirement and matching sloped coping profile before ordering. The current page clearly states the 100mm external leg, but it should explain how the selected size relates to wall coverage.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eChoosing the Right Size \/ Width \/ Thickness\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eChoose the size by measuring the finished parapet width, not just the bare blockwork. Allow for render, waterproofing upstands, insulation build-up and the required overhang. On refurbishment jobs, the finished wall can be very different from the original masonry width, especially on Victorian terraces and older commercial properties.\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eFor domestic extensions and garden room parapets, measure after the roof build-up and external finish are confirmed so the selected corner matches the coping lengths on both sides.\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eFor commercial flat roofs, check the detail against the roof membrane upstand, insulation zone and external facade finish before choosing the width.\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eFor housing developments and care homes, standardise the size across repeated wall details where possible, then order matching corners and straight lengths together.\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eFor refurbishments in London, Essex or Kent, allow for older walls that may be uneven, out of square or built up with later render layers.\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eFor exposed rooflines, keep the RAL colour consistent across corners, coping lengths, fixings and jointing products so the completed system looks deliberate.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eHow to Install \/ How to Fit\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eStart by dry fitting the corner with the adjacent coping lengths. Check that the 135° angle sits cleanly against the wall junction and that the slope falls in the correct direction. Before fixing, confirm that both adjoining runs line through properly and that the overhang looks even from the external face.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003ePrepare the substrate so the corner sits flat and stable. Any old loose mortar, failed sealant or high spots should be corrected before installation. Where sealing is required at joints, use a compatible \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/colour-coded-sealant-300ml\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ecolour coded sealant\u003c\/span\u003e\u003c\/a\u003e so the finish does not stand out against the powder coated corner.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eFix the component according to the chosen project detail and the rest of the coping system. If mechanical fixing is required into metal or suitable backing, use the correct \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/metal-fasteners-ral-pack-25\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ecolour coded metal fasteners\u003c\/span\u003e\u003c\/a\u003e so fixings match the RAL finish and do not distract from the roofline.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eCheck every joint before leaving site. The corner should sit tight to the connecting coping pieces, with neat sealant lines where required and no open gaps that could collect water. For surrounding details, matching \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/collections\/trims-flashings-angles-1\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003etrims, flashings and angles\u003c\/span\u003e\u003c\/a\u003e can help keep the roof edge, wall face and waterproofing termination consistent.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eWhere 135 Degree Aluminium Coping Corners Are Used\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eSplayed Parapet Walls on Modern Extensions\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eMany modern extensions use angled walls to soften the layout or follow boundary lines. This product gives the external corner a cleaner finish than a site-made cut, especially when paired with the wider \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-copings\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ealuminium copings\u003c\/span\u003e\u003c\/a\u003e range.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eFlat Roofs with Non-Square Perimeters\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eFlat roofs on schools, retail units, offices and housing blocks are not always simple rectangles. A 135° corner helps continue the coping detail around angled sections while supporting a more reliable roof perimeter. For surrounding waterproofing details, the \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-roof-flashing-3000mm\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ealuminium roof flashing\u003c\/span\u003e\u003c\/a\u003e page can support related specification planning.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eBoundary Walls and Raised Terrace Edges\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eOn garden walls, terrace upstands and raised external spaces, angled corners are common where the wall follows a landscaping layout. A powder coated aluminium corner gives a smarter result than leaving exposed masonry vulnerable to staining, frost damage and water tracking.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eHousing Developments and Repeat Plot Details\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eOn new-build sites, repeatable components help reduce variation between plots. Ordering the same profile family, finish and accessories makes site work easier and gives the developer a more consistent result. The \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-coping-case-study\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ecoping case study\u003c\/span\u003e\u003c\/a\u003e can also support trust when buyers want to see practical project use.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eRefurbishment Projects with Awkward Existing Angles\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eOlder buildings in places like Colchester, Chelmsford and East London often have wall lines that are not perfectly square. A formed 135° external corner helps manage those angled junctions without relying on improvised cutting, oversized sealant beads or visible patching.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 11.5pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eWhat is a 135 degree aluminium coping corner used for?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eA 135 degree aluminium coping corner is used where a parapet wall turns at an angled external junction rather than a standard square corner. It connects two sloping coping runs neatly and helps protect the wall below from rainwater, staining and weather damage.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 11.5pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eDo I need an external or internal 135 degree corner?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eYou need an external corner when the wall turns around an outside edge. You need an internal corner when the coping turns into an inside angle. If your layout includes both conditions, order the matching \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-135-1\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003e135 degree internal sloping corner\u003c\/span\u003e\u003c\/a\u003e separately so each junction is formed correctly.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 11.5pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eIs aluminium better than lead for this type of coping corner?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eAluminium is often better for modern parapet coping because it is lightweight, corrosion resistant and can be powder coated in a wide choice of RAL colours. Lead can still be appropriate on some listed buildings or heritage work where conservation officers require traditional materials, but aluminium is usually the cleaner and easier option for contemporary roof edge detailing.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 11.5pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eHow do I choose the right size?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eMeasure the finished wall width, including render, waterproofing, insulation and any other build-up. Then choose the corner size that matches the straight coping lengths being used on both sides of the angle. The size should not be chosen from bare blockwork alone.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 11.5pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eShould the joints be sealed?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eMost coping junctions need careful joint treatment to stop water entering at the weakest point. Use a suitable \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/colour-coded-sealant-300ml\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ecolour coded sealant\u003c\/span\u003e\u003c\/a\u003e where the detail calls for sealing, and keep the bead neat so the corner still looks professional.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 11.5pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eCan this corner be supplied in a specific RAL colour?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eYes. The corner can be powder coated in any RAL colour, which allows it to match straight coping lengths, fixings, trims and other architectural metalwork. This is useful on visible rooflines where colour consistency affects the finished appearance.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eComparison Section\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eAluminium Corner Versus Site-Cut Coping Lengths\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eA purpose-made aluminium corner usually gives a cleaner and more reliable result than cutting two straight lengths on site. Site cuts can work in very simple situations, but they depend heavily on installer accuracy, joint preparation and sealing. A formed corner reduces guesswork and gives the roof edge a more finished appearance.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eAluminium Corner Versus Lead Detailing\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eLead still has a place on certain heritage buildings, especially where a conservation officer wants traditional materials retained. For modern flat roofs and commercial parapets, aluminium is often easier to handle, cleaner to colour match and more consistent across a complete coping system.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 13.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eAluminium Corner Versus Plastic Wall Capping\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003ePlastic capping can be suitable for lighter garden or budget applications, but it rarely gives the same robust architectural look as powder coated aluminium. For visible buildings, contractor-led projects and exposed roof edges, aluminium gives a more durable and professional finish.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eFor projects where the corner is only one part of the roof edge, keep the product within a complete \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-copings\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ealuminium copings\u003c\/span\u003e\u003c\/a\u003e specification so the profile, colour and jointing approach stay consistent across the whole run.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003ePart of a Complete System\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eThis corner works best when it is ordered as part of a complete roof edge system rather than as an isolated fitting. Matching parts reduce colour variation, simplify installation and help the finished roofline look like one designed package.\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-sloping-coping\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ealuminium sloping coping range\u003c\/span\u003e\u003c\/a\u003e for the straight runs either side of the corner\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003e90 degree sloping coping corner\u003c\/span\u003e\u003c\/a\u003e for standard square junctions on the same project\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-135-1\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003e135 degree internal sloping corner\u003c\/span\u003e\u003c\/a\u003e for inside angled wall returns\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/colour-coded-sealant-300ml\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ecolour coded sealant\u003c\/span\u003e\u003c\/a\u003e for neat joint sealing where required\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/metal-fasteners-ral-pack-25\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003ecolour coded metal fasteners\u003c\/span\u003e\u003c\/a\u003e for visible fixing points where metal backing is used\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/collections\/trims-flashings-angles-1\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003etrims, flashings and angles\u003c\/span\u003e\u003c\/a\u003e for related roof edge and wall termination details\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/collections\/roof-accessories\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003eroof accessories\u003c\/span\u003e\u003c\/a\u003e for complementary items used around flat roof and parapet work\u003c\/p\u003e\n\u003cp class=\"MsoListBullet\" style=\"mso-add-space: auto; text-indent: -.25in; line-height: 15.0pt; mso-line-height-rule: exactly; mso-list: l0 level1 lfo1; tab-stops: list .25in; margin: 0in 0in 8.0pt .25in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e         \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/2mm-aluminium-coping-corner-135\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003eflat 135 degree coping corner\u003c\/span\u003e\u003c\/a\u003e if the project uses flat coping rather than a sloping profile\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003e\u003cb style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan style=\"font-size: 15.0pt; mso-bidi-font-size: 11.0pt; color: #2c3e50;\"\u003eStandards and Compliance\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eFor flat roof and parapet contexts, design teams should consider \u003ca href=\"https:\/\/knowledge.bsigroup.com\/products\/flat-roofs-with-continuously-supported-flexible-waterproof-coverings-code-of-practice-1\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003eBS 6229:2025\u003c\/span\u003e\u003c\/a\u003e, which covers flat roofs with continuously supported flexible waterproof coverings. The coping corner is not a roof membrane, but its detailing still affects roof edge weathering, water run-off and long-term building protection.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eFor architectural aluminium finishes, \u003ca href=\"https:\/\/knowledge.bsigroup.com\/products\/paints-and-varnishes-coating-of-aluminium-and-aluminium-alloys-for-architectural-purposes-coatings-prepared-from-thermosetting-coating-powder\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #2e75b6;\"\u003eBS EN 12206-1:2021\u003c\/span\u003e\u003c\/a\u003e is the relevant reference for coating aluminium and aluminium alloys using thermosetting coating powder. That supports the product positioning as powder coated aluminium.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 8.0pt; line-height: 15.0pt; mso-line-height-rule: exactly;\"\u003eFor new-build projects, the coping detail should also be considered alongside NHBC warranty expectations, the roof specification and the designer details. Getting this right protects the warranty, the building and the people inside it.\u003c\/p\u003e","brand":"Online Metal Store Ltd","offers":[{"title":"185mm","offer_id":42314530193492,"sku":"AC2-E135-100-185","price":57.6,"currency_code":"GBP","in_stock":true},{"title":"210mm","offer_id":42314530226260,"sku":"AC2-E135-100-210","price":60.12,"currency_code":"GBP","in_stock":true},{"title":"235mm","offer_id":42314530259028,"sku":"AC2-E135-100-235","price":62.64,"currency_code":"GBP","in_stock":true},{"title":"260mm","offer_id":42314530291796,"sku":"AC2-E135-100-260","price":65.16,"currency_code":"GBP","in_stock":true},{"title":"285mm","offer_id":42314530324564,"sku":"AC2-E135-100-285","price":67.68,"currency_code":"GBP","in_stock":true},{"title":"310mm","offer_id":42314530357332,"sku":"AC2-E135-100-310","price":70.2,"currency_code":"GBP","in_stock":true},{"title":"335mm","offer_id":42314530390100,"sku":"AC2-E135-100-335","price":72.72,"currency_code":"GBP","in_stock":true},{"title":"360mm","offer_id":42314530422868,"sku":"AC2-E135-100-360","price":75.24,"currency_code":"GBP","in_stock":true},{"title":"385mm","offer_id":42314530455636,"sku":"AC2-E135-100-385","price":77.76,"currency_code":"GBP","in_stock":true},{"title":"410mm","offer_id":42314530488404,"sku":"AC2-E135-100-410","price":80.28,"currency_code":"GBP","in_stock":true},{"title":"435mm","offer_id":42314530521172,"sku":"AC2-E135-100-435","price":82.8,"currency_code":"GBP","in_stock":true},{"title":"460mm","offer_id":42314530553940,"sku":"AC2-E135-100-460","price":85.32,"currency_code":"GBP","in_stock":true},{"title":"485mm","offer_id":42314530586708,"sku":"AC2-E135-100-485","price":87.84,"currency_code":"GBP","in_stock":true},{"title":"510mm","offer_id":42314530619476,"sku":"AC2-E135-100-510","price":90.36,"currency_code":"GBP","in_stock":true},{"title":"535mm","offer_id":42314530652244,"sku":"AC2-E135-100-535","price":92.88,"currency_code":"GBP","in_stock":true},{"title":"560mm","offer_id":42314530685012,"sku":"AC2-E135-100-560","price":95.4,"currency_code":"GBP","in_stock":true},{"title":"585mm","offer_id":42314530717780,"sku":"AC2-E135-100-585","price":97.92,"currency_code":"GBP","in_stock":true},{"title":"610mm","offer_id":42314530750548,"sku":"AC2-E135-100-610","price":100.44,"currency_code":"GBP","in_stock":true},{"title":"635mm","offer_id":42314530783316,"sku":"AC2-E135-100-635","price":102.96,"currency_code":"GBP","in_stock":true},{"title":"660mm","offer_id":42314530816084,"sku":"AC2-E135-100-660","price":105.48,"currency_code":"GBP","in_stock":true},{"title":"685mm","offer_id":42314530848852,"sku":"AC2-E135-100-685","price":108.0,"currency_code":"GBP","in_stock":true},{"title":"710mm","offer_id":42314530881620,"sku":"AC2-E135-100-710","price":110.52,"currency_code":"GBP","in_stock":true},{"title":"735mm","offer_id":42314530914388,"sku":"AC2-E135-100-735","price":113.04,"currency_code":"GBP","in_stock":true},{"title":"760mm","offer_id":42314530947156,"sku":"AC2-E135-100-760","price":115.56,"currency_code":"GBP","in_stock":true},{"title":"785mm","offer_id":42314530979924,"sku":"AC2-E135-100-785","price":118.08,"currency_code":"GBP","in_stock":true},{"title":"810mm","offer_id":42314531012692,"sku":"AC2-E135-100-810","price":120.6,"currency_code":"GBP","in_stock":true},{"title":"835mm","offer_id":42314531045460,"sku":"AC2-E135-100-835","price":123.12,"currency_code":"GBP","in_stock":true},{"title":"860mm","offer_id":42314531078228,"sku":"AC2-E135-100-860","price":125.64,"currency_code":"GBP","in_stock":true},{"title":"885mm","offer_id":42314531110996,"sku":"AC2-E135-100-885","price":128.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/1588\/2580\/files\/Sloped_20Coping_20-_20135-Degree_20External_20Corner.png?v=1774517093","url":"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-135","provider":"Online Metal Store Ltd","version":"1.0","type":"link"}