Floplast Cast Iron Style 115mm Hi-Cap Gutter

About FloPlast Cast Iron Style 115mm Hi-Cap Guttering

FloPlast Cast Iron Style 115mm Hi-Cap guttering brings together the best of both worlds: the massive water-handling capacity of a deepflow system and the stunning, architectural appearance of traditional 19th-century metal. Featuring a textured surface and moulded detailing that perfectly mimics sand-cast iron, this system is ideal for large period properties, barn conversions, and commercial heritage buildings that need to manage heavy rainfall without compromising on aesthetics. It offers the premium look of real iron but is manufactured from lightweight, modern uPVC. At Gutters.co.uk, we supply the complete Cast Iron Style Hi-Cap range, ready for fast UK delivery.

Why Choose FloPlast Cast Iron Style Hi-Cap?

Authentic Heritage Finish: Features a convincing textured finish and specially designed fittings with architectural "lugs" to replicate the heavy, bolted joints of traditional metal systems. Maximum Flow Capacity: The deeper, semi-elliptical profile moves a significantly larger volume of water than standard half-round, making it perfect for steep-pitched roofs and areas prone to heavy downpours. Cost-Effective & Lightweight: Achieve the grand, traditional look of real cast iron at a fraction of the material cost, with a lightweight profile that is much safer and faster to install. Zero Maintenance: Unlike real metal, this premium uPVC system will never rust, rot, or corrode, and it completely eliminates the need for regular sanding and repainting. Easy Push-Fit Installation: Features FloPlast’s proven, pre-lubricated push-fit seals, meaning you get a heavy-duty heritage look without needing specialist metalworking tools.

FloPlast Cast Iron Style 115mm Hi-Cap FAQ

Can I use this on a listed building or in a conservation area? Yes, FloPlast’s Cast Iron Style range is a highly popular, lightweight alternative for conservation areas and is frequently approved by planning authorities. However, we always recommend double-checking with your local conservation officer before starting your project.

Why should I choose Hi-Cap instead of the standard Half Round? If your heritage property has an unusually large roof area, a very steep pitch, or if you are working on a large agricultural/barn conversion, the standard 112mm half-round might struggle during heavy storms. Hi-Cap holds far more water, drastically reducing the risk of overflow.

What downpipes do I use with this system? To complete the authentic period aesthetic from roof to drain, the 115mm Hi-Cap system connects seamlessly with FloPlast's 68mm Cast Iron Style round downpipes.

How far apart should the fascia brackets be spaced? Because the Hi-Cap profile is designed to hold a heavier volume of water, correct support is vital. Fascia brackets must be spaced no more than 1 metre apart. In exposed areas or locations prone to heavy snow, reduce the spacing to 0.5 metres to prevent the guttering from sagging.