Half Round Gutter

What the Half Round Gutter Range Includes

This subcategory brings together the parts needed to form a complete aluminium half round gutter run. The confirmed profile size is 123mm × 51mm, with the straight aluminium half round gutter supplied in 3m lengths.

Matching components include 90° and 135° internal and external corners, fascia brackets, rafter brackets, a round outlet, stopends and union joiners.

Colour-coded fasteners for metal or timber, coloured sealant, spray cans and touch-up paint are also available for fixing and finishing. Selecting components from the same profile range helps avoid mismatched joints, unsupported gutter sections and outlet connection problems.

Where Half Round Guttering Is Commonly Used

The curved gutter channel collects rainwater along the roof edge and directs it towards a round outlet and compatible downpipe. It can be used on domestic properties, extensions and commercial roofline projects where a curved gutter profile suits the building design.

Aluminium is lightweight, corrosion-resistant and suitable for exposed UK building exteriors. The individual products show Mill Finish and a broad selection of powder-coated RAL colours, allowing black, white, grey, brown and other project colour requirements to be considered. he Half Round Gutter Components Connect

The 3m lengths form the main horizontal gutter run. An aluminium half round gutter union joiner connects adjoining lengths, while an aluminium half round stopend closes an open end of the run.

Internal and external corner pieces allow the gutter to follow 90° or 135° changes in the building line. The chosen corner must match both the direction of the turn and the confirmed 123mm × 51mm profile.

The gutter can be supported using an aluminium half round fascia bracket where the system is fixed to a suitable fascia board. An aluminium half round rafter bracket may be relevant where the project detail requires support from the roof structure.

The round outlet connects the gutter to a compatible product from the Aluminium Round Downpipe range, which then carries the collected water towards the building’s drainage point.

Product Selection Help

Before ordering, check:

• The total roof-edge measurement.
• The number of 3m gutter lengths required.
• The confirmed 123mm × 51mm gutter dimensions.
• Every internal and external corner.
• Whether each corner is 90° or 135°.
• Whether fascia or rafter brackets suit the installation detail.
• The number and intended position of round outlets.
• The size of the connecting round downpipe.
• The required stopends and union joiners.
• Whether the fixing substrate is metal or timber.
• The required Mill Finish or RAL colour.
• Any sealant, fasteners or touch-up products needed.

Do not assume that a commonly searched 112mm half round gutter or 150mm half round gutter fitting will connect to this range. The confirmed Metal Profiles Ltd system is 123mm × 51mm, so an existing gutter should be measured rather than matched by appearance alone.

Common Ordering Mistakes to Avoid

Common mistakes include choosing an external corner instead of an internal corner, ordering the wrong bracket type, failing to allow for a union between adjoining lengths and overlooking the gutter fall towards the outlet.

Replacement projects can also create problems where an older plastic or metal gutter appears similar but uses different dimensions or a different jointing method.

The gutter size, outlet position, support arrangement, drainage capacity and final downpipe route should be reviewed by the project designer, roofing contractor or installer before installation.

Standard Products or Bespoke Requirements?

The standard range should suit straightforward installations using the confirmed 123mm × 51mm gutter profile, 3m lengths and listed corner angles.

Bespoke fabrication may be needed where project drawings show:

• A non-standard gutter dimension.
• An unusual internal or external angle.
• A customised outlet position.
• An awkward roofline transition.
• A connection that cannot be formed using the standard components.

For a useful estimate, provide the total gutter run, corner directions, outlet positions, bracket type, downpipe connection, required finish and any available drawings.

Metal Profiles Ltd can then review the requirement as part of the wider Aluminium Rainwater Goods range for projects in Chelmsford, Essex, London and elsewhere in the UK.

Frequently Asked Questions

What is a half round gutter used for?

A half round gutter collects rainwater along the roof edge and directs it towards an outlet and downpipe. It forms the horizontal collection channel within a roof rainwater system.

What size is the Metal Profiles Ltd half round gutter?

The confirmed aluminium gutter profile is 123mm × 51mm and the straight gutter sections are supplied in 3m lengths. Matching fittings should be selected from the same profile range.

Is this a 112mm half round gutter system?

No. The products currently shown in this category are confirmed as 123mm × 51mm. A 112mm fitting from another system should not be assumed to fit.

Which half round gutter brackets do I need?

A fascia bracket is intended for a suitable fascia-mounted detail, while a rafter bracket supports a different roof-edge arrangement. The correct bracket type and spacing should be confirmed by the installer or project designer.

What colours are available?

The products show Mill Finish and a broad range of RAL colour options, including black, white, grey and brown shades. Confirm the exact finish on each selected product before ordering.

Can bespoke half round gutters be manufactured?

Bespoke gutter solutions can be considered where the standard 123mm × 51mm system or listed corner angles do not meet the project detail. Send the dimensions, outlet positions, bracket requirements, finish and drawings for review.

How do I request an estimate?

Use the Metal Profiles Ltd estimate request form and provide the gutter measurements, quantities, corners, outlets, bracket type, downpipe connection, colour and any relevant drawings.