Yes. The Brass Rooflight Pole Winder Opener 300mm is compatible with Lumen Rooflights and most timber-framed skylights. If you have a specific rooflight model, call 0333 987 4452 to confirm compatibility before ordering.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£30.25 – £32.45Price range: £30.25 through £32.45 ex VAT (£36.30 – £38.94 inc VAT)
Side rafter rise and fall bracket for G46 cast iron gutter.
Sizes available:
100mm x 75mm
125mm x 75mm
We also manufacture side rafter rise and fall brackets for moulded and Og guttering made by: Osma, Marley, Hunter and Lindab
UK delivery from £30. Fittings are despatched boxed. See delivery rates.
The RB501G46 is a side rafter rise and fall bracket for the G46 moulded cast iron gutter. Where there is no fascia board — on open eaves, or where the rafter face is the only available fixing point — the RB501G46 mounts directly to the side face of the rafter and provides adjustable support at the correct height for the gutter run. The bracket cup is shaped specifically for the G46 moulded section.
Available in both G46 profile sizes: 125mm (5″) and 150mm (6″). Zinc-plated steel finish. The threaded rise and fall cup allows precise fall setting at each bracket position independently of the rafter pitch — important on the large Victorian and Edwardian buildings where the G46 is the standard profile and long gutter runs require accurate gradient management.
Specified on listed buildings and heritage restoration projects where the G46 moulded pattern is the historically correct profile. The RB501G46 is the G46 equivalent of the RB501 bracket range.
Compatibility: G46 moulded cast iron gutter 125mm and 150mm only. For specification support, call 0333 987 4452.
| Size | -J- 100mm x 75mm, -M- 125mm x 100mm |
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Yes. The Brass Rooflight Pole Winder Opener 300mm is compatible with Lumen Rooflights and most timber-framed skylights. If you have a specific rooflight model, call 0333 987 4452 to confirm compatibility before ordering.
Our cast iron airbricks are supplied in primed finish, ready for on-site painting. This allows them to be finished to match the existing ironwork or masonry colour of the building. Standard black gloss is the most common finish for conservation and heritage projects.
Most old buildings have cast iron rainwater systems that should be maintained and preserved however; these inherent benefits make cast iron an ideal choice for both traditional and modern installations. It is not uncommon to see modern alternative products marketed with terms like low maintenance or easy to install and cost effective. It has even been said that ‘plastic guttering systems provide a way of achieving a traditional look with modern convenience
As well as being easier to produce, the material enabled eaves gutters to be installed more simply, since lead could only be used in this location as a lining for timber gutters. Many modern materials focus on replicating the appearance of cast iron but those materials can vary rarely offer any of the benefits. Cast iron gutters and pipes offer great strength and durability, a proven history of long life, low noise operation and fire resistance.
Most old buildings have cast iron rainwater systems that should be maintained and preserved however; these inherent benefits make cast iron an ideal choice for both traditional and modern installations. It is not uncommon to see modern alternative products marketed with terms like low maintenance or easy to install and cost effective. It has even been said that ‘plastic guttering systems provide a way of achieving a traditional look with modern convenience’.
These terms tend to refer to possible cost savings rather than any real product benefits. It is also difficult to quantify the benefits of modern convenience over traditional build quality. It is worth remembering that all rainwater goods will require some element of maintaining to ensure they are unblocked by debris and remain functional. No rainwater system cleans itself.
Today most suppliers of cast iron rainwater systems offer products in both primer or pre-painted with a 10 year protective coating. When describing modern materials, the term ‘cost effective’ is used rather than simply saying cheap. There is no doubt that the initial cost of many modern materials is less than cast iron but you might be surprised to know that over its lifespan, cast iron will cost around a third of plastic.
Our cast iron hopper heads are available with 65mm, 75mm and 100mm round outlets, 75mm, 100mm and 125mm square outlets, and 100x75mm, 125x100mm and 150x125mm rectangular outlets, to match the downpipe already on site or specified for the project.
The Paxton H82 accepts round, square, and rectangular pipe connections. Round: 65mm, 75mm, and 100mm. Square: 75×75mm, 100×100mm, and 125×125mm. Rectangular: 100×75mm, 125×100mm, and 150×100mm. Bespoke adaptations including double pipe connections are also available on request. Please confirm your required connection type when ordering.
The H542A measures 240mm wide x 240mm deep x 290mm high, making it well suited to a compact square profile suited to smaller Georgian and Victorian properties, extensions and outbuildings.
Yes. Cast iron hopper heads are the historically correct choice for listed and period buildings, and a like-for-like cast iron replacement is generally accepted without objection by conservation officers. We manufacture to BS 460 for genuine heritage character and durability.
Yes. Polished brass is a historically appropriate finish for period and listed buildings and is generally acceptable to conservation officers. If your project requires specific confirmation, we are happy to advise — call 0333 987 4452.
BTU stand’s for British Thermal Units. This was the old (Imperial) measurement for heat in connection with plumbing. Although BTU’s is a term still commonly used within the heating and plumbing, the industry is now going over to KW’s Kilowatts.
The Calnethorpe is designed for formal classical and Georgian elevations where scale and material authenticity matter — large townhouses, country houses, manor houses, and institutional buildings. It is also widely specified for new-build heritage projects where cast iron rainwater goods are required to conservation standard.


