Kommercial XTRA Guttering
Kommercial Xtra guttering is the largest profile in the range at 200mm, sized for an industrial roof or a long run where even commercial guttering would surcharge in heavy rain. Pipe comes in 3m lengths with 110mm and 160mm outlets. Step down to kommercial guttering.
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Choosing Kommercial XTRA Guttering
Frequently Asked Questions
When the roof area draining into one run is more than a domestic profile can carry — typically a warehouse, farm building, industrial unit or a block of flats. Signs an existing run is undersized: it overflows at the back in heavy rain, or water sheets over the front edge rather than running to the outlet.
Most house roofs are fine on 112mm half round with 68mm downpipe. Step up to a deep flow or ogee profile where the roof area is large, the pitch is steep, or one run serves a long elevation. Warehouse, farm and flatted buildings need the 170mm and 200mm commercial sections.
At the low end of the fall, above a gully or a suitable discharge point, and as close as practical to a downpipe route that can run straight down the wall. On a long elevation it is usually better to fall to an outlet at each end than to run the whole length to one, which needs more fall and a deeper drop.
Fascia brackets are normally fixed at 800mm to 1000mm centres, closer where snow load is likely, with a bracket within 150mm of every union, angle and outlet. Set a fall of roughly 1:600 towards the outlet, about 3mm per metre, so water runs off rather than standing in the bottom of the gutter.