Downpipes and downpipe fittings should be supported by downpipe clips; the downpipe itself should have a clip installed every 180cm for support. You should also install downpipe clips directly underneath any swan neck bends in the system.
✔ Hold a downpipe clip centrally over the line and mark the fixing holes on the wall with a pencil. ✔ Repeat down the wall, spacing pipe clips no more than 1.8m apart. ✔ Drill the fixing holes. ✔ Leave a 10mm gap between the end of the pipe and the bottom of the pipe socket to allow for expansion.
Use a level or plumb line to mark where the downpipe will sit against the wall. Ensure brackets are spaced no more than 1.2m apart and the first clip is a maximum of 200mm below the downpipe bend. Downpipe clips to be secured with two stainless steel screws.
Downpipe clips are 2 per 3metre length – then add one additional one to the total for each drop, to secure the final 1.5mtres.
In warmer climates, you can place your hangers close to the center of the gutter, with a spacing of 36 inches in between each hanger. For colder climates, however, you need to space them closer to each other as they need to be able to take the extra load of ice and snow, preferably 18 inches in between each hanger.
To determine how many gutter brackets you need simply take the linear feet of gutter that you're installing and divide it by 2.5. This calculation would give you the correct count for brackets.
A maximum 12 m gutter length served by each downpipe is to ensure effective fall and adequate capacity to discharge all water anticipated during a storm having an average recurrence interval of 20 years.
Starting at the top of the wall, position a downpipe pipe clip centrally over the pencil line. Use a pencil to mark the position of its fixing holes onto the wall. If offset bends are required, position a downpipe clip directly below the bend.
Clips should be fixed at 1.2m centres vertically and 0.5m centres horizontally for 32 and 40mm systems. For 50mm systems, the vertical centres are the same but the horizontal clip spacing can be increased to 0.6m.
As a rule of thumb, gutter hangers should be spaced a maximum of three feet away from each other. If you live in a cold climate, your contractor may recommend gutter hanger spacing of two feet apart to account for the additional weight from snow and ice. Does Gutter Material and Size Matter?
In conclusion, the traditional guideline suggests bracket spacing of approximately every 1 to 1.5 meters. However, there is flexibility to increase spacing based on specific project requirements.
The maximum bracket distance according to manufacturers
With steel pipes the bracket distance is permissible to 6 meters.
Pre Installation Requirements for Gutters & Downpipes
Fascia brackets should be spaced at a maximum of 1m apart on straight gutter runs. (800mm in the case of the Ogee Gutters, 600mm in the case of the Hi Capacity Gutters).
Get 110mm and 160mm Industrial Downpipe Clips Online
EasyMerchant's 160mm / 170mm / 200mm Industrial Downpipe Clips are ideal for industrial, agricultural and commercial jobs. You'll need 110mm pipe clips for the 160 & 170mm industrial gutters, and 160mm Pipe Clips for the 200mm system.
What clipping distances should be used for 110m soil pipes? Vertical pipe sockets should be anchored with socket clip and a pipe clips fitted at 1.8 metres centres maximum Horizontal runs should be anchored at sockets and pipe clips at 1.0 metre centres.
Space clips 18 to 24 inches apart for light to medium-weight cables in vertical runs. For heavier cables, reduce the spacing to 12 to 18 inches apart to provide adequate support.
Sound Isolation Clips shall not exceed 48 inches on center. Spacing between hat channels shall not exceed 24 inches. Fasten the Sound Isolation Clip to the substrate with a fastener approved for a minimum pull-out and shear of 120 lbs.
To avoid excessive temperature and pressure drops, Uheat recommends a maximum circuit length of 100m (for the 15, 16 and 20mm pipe). If 200mm (standard pipe spacing) is specified, you will need 5m of pipe for each m². This would mean each 100m circuit will cover up to 20m².
The right number of downpipe brackets depends on the type of guttering you're installing, but here's a quick recap: Galvanised Steel, Copper, Zinc, Stainless Steel: Brackets every 915mm, 3 per length. SnapIT Aluminium & Moulded: Brackets every 750mm, 4 per length.
Performance goals: If you're primarily interested in increasing performance, a high-quality aftermarket downpipe can provide gains in horsepower and torque without the extreme noise associated with straight pipes.
To calculate the minimum number of downpipes, divide the roof catchment area by the allowable maximum catchment per downpipe. To calculate the average catchment per downpipe, divide the roof catchment area by the number of downpipes.
* Many codes require pipe hangers to be spaced every 10 ft. regardless of 1 Cubic Ft.
As a general rule, contractors recommend having a downspout per every 20 feet of gutter, but depending on the gutter's capacity, it's not rare to see that distance go as far as 30-50 feet. Large gutters will offer a wider structure to channel more water at a time.