2mm Aluminium Coping – Right Handed Stopend Upstand | 100mm External Leg

An open end on a coping run is a small detail that can turn into a damp problem. Wind driven rain can work into the exposed wall head, especially on flat roof projects in Chelmsford, Brentwood, Colchester, Basildon and East London where parapet edges take plenty of weather through the year.

This aluminium coping end cap 100mm gives the right hand end of the run a proper formed closure. It looks cleaner than a site cut, performs better than relying on sealant alone, and helps finish the roof edge in a way that feels planned rather than patched.

Product Overview

The product is a 2mm aluminium coping end cap, also described on the page as a right handed stopend upstand with a 100mm external leg. It is used at the right hand end of a wall capping or parapet coping run to close the profile, protect the exposed edge and give the roofline a neat architectural finish.

Manufactured for UK roofline projects from Chelmsford, Essex, it is available in selected widths from 185mm to 885mm and can be powder coated in any RAL colour. Online Metal Store Ltd should position it within the wider Aluminium Copings range, with supporting links to Aluminium Flat Copings and Aluminium Sloping Coping where buyers are planning a complete parapet detail.

This should be treated as a system component rather than an optional decorative part. When ordered with matching lengths, corners, fixings and Colour Coded Sealant 300ml, the finished coping run looks more consistent and gives installers a clearer route to a weatherproof end detail.

Key Benefits

Forms a Proper End Closure

The end cap closes the exposed right hand side of the coping run, reducing the chance of rainwater, dirt and wind finding their way into the wall head. On parapet walls, that closing detail matters because open ends can quickly lead to staining, damp patches and call backs after poor weather.

Suitable for UK Weather Conditions

The 2mm aluminium construction is well suited to the UK climate, including driving rain, frost cycles, damp air and coastal winds. It gives the roofline a corrosion resistant finish without adding unnecessary weight at roof level.

Powder Coated in Any RAL Colour

The end cap can be powder coated to match the main coping, fascia, soffits, windows or rainwater goods on the building. A consistent RAL finish is useful on modern homes, commercial units and housing developments where small colour differences can stand out from the ground.

Lightweight and Easier to Handle on Site

Aluminium is easier to handle than heavier metal alternatives, which helps roofers and builders working along exposed parapet edges. The lighter weight also helps when aligning the cap with the final coping length before sealing and fixing.

UK Manufactured with Practical Lead Times

Manufacturing through a UK supply chain helps buyers avoid waiting too long for a small but essential finishing part. For roofers in Essex, Kent, the Home Counties and across the South East, that can make the difference between completing the roof edge and leaving the job unfinished.

Cleaner Than a Site Made End Detail

A factory formed end cap gives a sharper finish than cutting the end on site and trying to make it look right with extra sealant. It helps keep the wall top clean, consistent and professional, especially where the roofline is visible from gardens, balconies or street level.

Technical Specifications

Product type: Right handed stopend upstand and end cap for aluminium coping

Material: 2mm aluminium

Profile: Coping end closure with upstand detail

External leg: 100mm

Handing: Right handed

Finish: Powder coated in any RAL colour selected at order stage

Price shown on current page: From £58.56 ex VAT, £70.27 inc VAT

Available sizes: 185mm, 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 and 885mm

Measurement note: The page image alt text refers to 100mm x 125mm. Confirm the second leg or upstand measurement before publishing final sales copy.

Best used with: Matching coping lengths, corners, sealant and colour coded fasteners from the same system

Order note: Custom fabricated product, measurements and handing should be checked before purchase

Choosing the Right Size and Handing

The coping end cap size should match the coping width being installed, not just the visible wall width. Allow for overhang, drip position, membrane build up and any insulation detail before ordering.

·         Use sizes from 185mm to 285mm for narrower garden walls, small domestic parapets and simple extension details.

·         Use sizes from 310mm to 510mm for common UK roofline work on Victorian terraces, Edwardian semis, side returns and domestic flat roof extensions.

·         Use sizes from 535mm to 885mm for wider commercial parapets, schools, care homes, housing developments and larger wall build ups.

·         Choose a right handed end cap when the closed end is on the right hand side of the coping run from the agreed fitting direction. If the opposite end needs closing, the project may require a left handed stopend.

·         Match the RAL colour across coping lengths, end caps, corners, fasteners and sealant so the finished roofline looks like one planned system.

How to Install the Aluminium Coping End Cap

Start by checking the coping width, external leg, colour and handing before fitting. Dry fit the end cap against the final coping length and confirm that the closed side faces the correct direction before any sealant is applied.

Prepare the wall head and waterproofing detail so the coping system sits evenly. Where a membrane termination or abutment detail is part of the project, the Aluminium Termination Bar 2500mm can be referenced as a supporting product.

Line up the end cap with the final length, keeping the joint even and the roofline straight. Fix with the correct substrate fixing, using Colour Coded Fasteners for Timber or Colour Coded Fasteners for Metal depending on the build up.

Seal the joint with Colour Coded Sealant 300ml to create a neat colour matched finish. The sealant should support the joint, not replace the formed end cap itself.

Where the end cap meets other roof edge details, check related products such as Aluminium Roof Flashing 3000mm, Aluminium Roof Soakers and Trims, Flashings and Angles so the surrounding waterproofing and roofline details are not treated in isolation.

Where Aluminium Coping End Cap 100mm Is Used

Domestic Flat Roof Extensions

On extensions around Chelmsford, Billericay and Brentwood, this end cap helps finish the coping run neatly where the wall stops at an exposed end. It gives homeowners a cleaner look and gives builders a more reliable close off than trying to form the detail on site.

Commercial Parapet Walls

Commercial units in Basildon, Colchester and East London often need practical details that still look tidy from the ground. Pairing the end cap with the full Aluminium Copings system helps keep the wall top protected across long runs and visible elevations.

Refurbishment and Roofline Repairs

On older properties, open or poorly sealed coping ends are often part of the reason staining appears on the wall face. Replacing improvised end details with a formed aluminium cap gives the refurbishment a more durable and professional finish.

Housing Developments and Public Sector Buildings

For housing developments, schools and care homes, the same part can be repeated across multiple roof edges, which helps standardise detailing. Consistent sizing and RAL colour selection make it easier to keep every elevation looking joined up.

Projects Requiring Visible Colour Coordination

Where the coping has to match windows, soffits or rainwater goods, a powder coated end cap keeps the finish consistent. Use the Coping Case Study as a trust signal for buyers who want to see how aluminium coping details perform on real UK projects.

Frequently Asked Questions

What is an aluminium coping end cap used for?

An aluminium coping end cap is used to close the exposed end of a parapet wall coping run. It protects the wall head, improves the finished appearance and reduces the risk of rainwater entering the open end of the system.

Do I need an end cap on every coping run?

Most coping runs need a proper closure wherever the profile finishes at an exposed end. A straight run may need one end cap at one side or a handed cap at both sides, depending on the layout and whether the run meets another wall, corner or abutment.

How do I know if I need a right handed upstand?

You need a right handed upstand when the closed end sits on the right hand side of the coping run from the agreed installation direction. Always check the roof drawing or stand at the fitting side before ordering, because handing mistakes are common on end details.

Can I use sealant instead of a formed metal end cap?

Sealant should not be used as the only closure for an open coping end. It can help seal the joint, but a formed aluminium end cap gives a stronger, neater and more reliable finish for long term roofline protection.

Is this end cap suitable for coastal or exposed areas?

Aluminium is a good choice for exposed UK rooflines because it is corrosion resistant and lightweight. In coastal or harsh environments, the coating, fixings and maintenance routine should be selected carefully so the full system performs well over time.

Can the end cap match my existing coping colour?

Yes, the end cap can be powder coated in the selected RAL colour. Matching the cap to the main coping length helps the roof edge look consistent and avoids a mismatched finish on visible elevations.

Comparison Section

Aluminium End Cap

A formed aluminium end cap is the best option for most modern parapet coping systems. It is lightweight, corrosion resistant, colour matched and made to close the profile properly, which gives the roof edge a cleaner and more dependable finish.

Site Cut With Sealant

A site cut with sealant may be used as a short term or low cost workaround, but it relies heavily on workmanship and rarely looks as clean as a formed part. It is also easier for the joint to fail if the end closure depends only on sealant.

Lead or Traditional Metal Detailing

Lead still has a role on some listed buildings and conservation projects where traditional materials are required. For most modern commercial and domestic rooflines, powder coated aluminium is easier to colour match, lighter to handle and better suited to a coordinated coping system.

For wider project planning, guide buyers back to the full Aluminium Copings range so they can select lengths, end caps, corners, sealant and fixings as one complete package.

Part of a Complete System

This aluminium coping end cap should be sold as one part of a full parapet protection system. Ordering the main coping lengths, handed end caps, corners, fasteners and sealant together helps avoid colour mismatch, wrong profile selection and missing parts on site.

·         Aluminium Copings - Use as the main system page for wall capping and parapet protection.

·         Aluminium Flat Copings - Use where the buyer is choosing a level coping style for a clean modern roofline.

·         Aluminium Sloping Coping - Use where controlled rainwater run off is needed from the top of the wall.

·         Colour Coded Sealant 300ml - Use for neat joint sealing and colour matched finishing around the cap.

·         Colour Coded Fasteners for Timber - Use when the substrate or support detail requires timber fixings.

·         Colour Coded Fasteners for Metal - Use where the system is fixed to metal or related metalwork.

·         Roof Accessories - Use for wider roofline components that support the installation.

Standards and Compliance

For flat roof and parapet work, the surrounding roof build up should be considered against BS 6229:2025, which covers flat roofs with continuously supported flexible waterproof coverings. The end cap is only one part of the detail, but the full roof edge still needs to manage water correctly.

For powder coated aluminium used in architectural applications, BS EN 12206-1:2021 is the relevant standard to reference. Getting the coating and detailing right protects the warranty, the building and the people inside it.

For new build projects, installers and specifiers should also check relevant NHBC Standards and project warranty requirements, especially where parapet detailing, waterproofing and drainage are part of the roof specification.