Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
Price 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 |
|---|
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 School Board Airbrick (F020801AFC) is available in three standard sizes: 225mm × 75mm, 225mm × 150mm, and 225mm × 225mm. These correspond to one-, two-, and three-brick-course heights and allow ventilation requirements to be met across a range of subfloor and wall opening sizes.
Premier Extra is our ready-to-fix factory finish — an attractive black semi-gloss coating that needs no painting on site, available across all seven standard gutter profiles and round rainwater pipes. It's also available to special order in a wider range of RAL and BS colours.
The School Board Airbrick is suited to Victorian and Edwardian terraced housing, mid-century school buildings, civic halls, public baths, and converted institutional buildings. Its plain square-grid face matches the utilitarian aesthetic of late-Victorian construction and is also appropriate for new heritage-style builds in conservation areas.
Yes. The Louvre Airbrick is dimensioned to standard brick course openings and is suitable for direct replacement of worn, broken, or missing original cast iron louvre grilles. If you are unsure of the size required, measure the opening in the brickwork rather than the existing damaged grille.
Prices are shown on each product page. For project quantities, specification advice, or a formal quotation, please call 0333 987 4452 or use the contact form.
Hopper heads are supplied in red oxide primer ready for on-site painting, or pre-finished in black. A full range of Heritage Colours in traditional linseed oil paint is also available on request — please contact us for the swatch chart.
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.
For rooflights directly above a worktop or sink, a telescopic screw-jack hand winder is the most practical choice. Available in polished brass, satin chrome, and polished chrome, these openers allow controlled ventilation from a fixed handle position without requiring a pole. The 150mm or 250mm size is typically appropriate for standard-height kitchen rooflights.
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.
