Description
Creating an Offset
The positioning of the roofline relative to the house wall, where the gutter is installed, often requires an offset for attaching the downpipe. This offset distance varies based on the architectural design of the house.
Offsets in steel downpipe installations are available in four options:
- 60mm: A 'fixed' offset suitable for 80mm and 100mm diameter pipes.
- 60-210mm (or 255mm*): For slightly larger projections, a 'swan neck' offset can be achieved using two pipe bends, adjusting the angle and twist away from perpendicular (90°) to the wall.
- 500-700mm: A new two-part variable offset solution.
- Over 700mm: For larger projections, an offset can be created using a cut length of pipe inserted between two pipe bends.
When using two 70-degree bends (e.g., GST80B70), a 'swan neck' is formed to offset the downpipe from the roofline to the building wall:
- With an 80mm diameter downpipe, two bends allow for a maximum offset of 210mm.
- With a 100mm diameter downpipe, two bends allow for a maximum offset of 255mm*. (*Note: The combined height of two 70-degree bends forming a swan neck is 240mm.)
For offsets between 60mm and the mentioned maximums, the 'swan neck' inside the downpipe should be pivoted to the required distance from the wall, ensuring the outlet at the roofline is not directly above the downpipe but appropriately set off to the side.
The two-part adjustable offset in galvanised steel, available in seven robust coated colors for both 80mm and 100mm diameter pipes, accommodates offsets of up to 700mm.
For larger offsets, a cut section of downpipe can be inserted between the two bends, cut to the necessary additional length. (Note: Consider the overlap of the swaged necks of the downpipe piece and the bends in calculations.)
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This company deserves more than 5 stars! Brilliant help & communication by the staff there. My purchase was delivered the next day. can't fault them at all. Thank you
Date of experience: 21 February 2024
Made up with the cladding and…
Made up with the cladding and corrugated roof sheets
Delivered early which was a bonus
All the sheets were not damaged
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Spot on
Will defo use again
Date of experience: 17 October 2023
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Very pleased with my grey composite cladding. Staff helpful, free samples received, confirming a good product at a fair price, leading to my purchase.
Date of experience: 11 June 2023
Help with my new garage roof!
Trade Warehouse could not have been more helpful. They very patiently guided a roofing newbie through all of the stuff I would need to do the job and provided helpful tips along the way. It's rare to find a company offering such a fantastic level of customer service as standard. I would highly recommend them and will certainly use them again.
Date of experience: 23 August 2023
Garden Storage
My contractor (Charlie Keep) recommended you to me so I could order the materials online for delivery direct to my home. These were for a project to construct a Garden Storage Area. The materials were perfect and the whole process was simple and slick with materials delivered on time and very well packaged. Charlie has since completed the project & I am very happy with the outcome.
Date of experience: 20 August 2023
Right product, right price, right delivery.
Right product, right price, right delivery. Sure, it was only one length of cast iron guttering but they took the order seriously, packed it well and kept me updated on delivery. And when I opened the very good packaging I found it was exactly what I had wanted. How can you do better!!
Date of experience: 31 January 2023
Fast
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Date of experience: 12 September 2023
It was exactly what I wanted
It was exactly what I wanted. Arrived in good order
Perfect
Date of experience: 16 September 2023
Straight forward and helpful with…
Straight forward and helpful with making the order. Delivery guy was friendly and was helpful in bringing the sheets into the back yard (was only a few). Really happy and would highly recommend!!!
Date of experience: 27 August 2023
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