Roof Accessories

What Roof Accessories Include

This subcategory contains the smaller but critical components used to finish and protect roof edges, changes in level, valleys and penetrations. The range includes aluminium roof edge drip trim (straight 3m lengths, 90° external and internal corners, and internal joiners), aluminium roof flashing, aluminium valley flashing, galvanised steel angle, roof termination bars, aluminium roof soakers, aluminium and lead roof penetration pipe sleeves, plus colour coded fasteners, sealant, touch-up paint and spray cans.

These items are designed to work together with our aluminium guttering and coping systems to form complete, watertight roofline solutions.

Common Applications in UK Roofing

Roof edge drip trim and flat roof drip edge trim are installed around the perimeter of flat roofs. The trim creates a clean edge that directs rainwater into the gutter while protecting the roof build-up and fascia. This detail is especially important in Essex, where driving rain and repeated freeze-thaw cycles are common.

Roof flashing is used at wall abutments, changes in roof level, parapets and around penetrations. It helps keep water away from junctions that are prone to leaks. Our aluminium roof flashing is supplied in 3000mm lengths together with matching external and internal corners.

For pitched roofs, aluminium valley sections channel water where two slopes meet. Aluminium roof soakers are commonly used around chimneys and roof junctions on pitched roofs. A full guide to their correct use is available in our roof soakers complete guide.

Roof termination bars provide a strong mechanical fixing for membranes at upstands and edges, while galvanised steel angle offers reliable support or edge protection where extra strength is needed. Aluminium and lead pipe sleeves help weatherproof soil and vent pipe penetrations through the roof surface.

Why Material Choice Matters

Aluminium is lightweight, naturally corrosion-resistant in UK weather and easy to work with on site. It also provides a consistent finish when used alongside our other aluminium roofline products. Galvanised steel angle is chosen where additional rigidity or structural support is required.

What to Measure Before Ordering

For roof edge trim and flashing, record the total length needed and note how many external corners, internal corners and joiners are required to maintain a continuous run. Check the height and projection of the trim against your roof build-up.

Termination bars should match the membrane manufacturer’s recommendations for width and fixing centres. Pipe sleeves must suit the outside diameter of the pipe and allow sufficient overlap with the roof membrane.

Most of our roof trims and flashing are held in standard 2.4m–3m lengths. Standard 90° corners cover the majority of detailing work. However, if your project involves unusual angles, non-standard widths or complex parapet details, bespoke fabrication is often the best solution.

Product Selection Help

Choose straight drip edge trim or flashing for long runs and add the matching corner pieces for a professional finish. Internal joiners help keep sections aligned and reduce the risk of water ingress at joints.

For valleys, select the aluminium valley profile that best suits your roof pitch and expected water flow. Packs of aluminium roof soakers are a practical choice when detailing multiple penetrations. Colour coded fasteners and matching sealant give a much cleaner appearance than standard fixings, especially on visible areas.

Standard products will cover most residential and small commercial roofs in the Chelmsford, Essex area. Bespoke items are typically only needed for architectural metalwork with non-standard angles or large commercial contracts.

Frequently Asked Questions

What are roof accessories used for?

They provide the finishing details that direct water, secure membranes, weatherproof penetrations and create neat, lasting edges on both flat and pitched roofs.

What does drip edge do on a roof?

Drip edge trim (also known as roof edge drip trim or flat roof drip edge) directs rainwater off the roof edge into the gutter and stops water tracking back under the membrane or behind the fascia.

Do flat roofs need drip edge trim?

Yes. A well-fitted flat roof drip edge trim protects the roof build-up, reduces leak risk at the perimeter and gives a clean professional finish.

What is the difference between roof flashing and drip edge?

Drip edge is mainly used at the outer perimeter of the roof. Roof flashing is used at junctions such as walls, chimneys, changes in level or valleys to prevent water penetration at those specific points.

What are roof soakers and when are they used?

Roof soakers channel water safely past penetrations on pitched roofs, typically around chimneys or pipe outlets. Our aluminium roof soakers are supplied in packs of 25 and are suitable for most traditional and modern roofing.

Can you supply bespoke roof flashing or non-standard corner pieces?

Yes. While we stock standard 90° corners, straight lengths and common profiles, we can fabricate special angles, widths and details to suit your project. Send your requirements via our estimate form for a price.