Select the gutter outlet configuration
most suited to your needs. Read across
the table and, rounding up to the roof
area larger than your actual roof area,
choose the appropriate gutter size.
The calculated effective roof area figures
are affected by 90° angles in the gutter
as follows: Within 2 metres of outlet -
increase roof area by 10%. More than 2
metres from outlet - increase roof area
by 5%.
Downpipe
At One End:
|
| |
Gutter
Flow
(Litres/sec) |
Roof Area
M2 |
Gutter
Flow
(Litres/sec) |
Roof Area
M2 |
0.5
0.9 |
24
43 |
0.6
1.3 |
29
62 |
| 1.6 |
77 |
2.0 |
96 |
2.1
2.2 |
101
106 |
2.4
2.5 |
115
120 |
| 2.1 |
101 |
2.3 |
110 |
| 1.1 |
53 |
1.5 |
72 |
| |
|
|
|
| 2.8 |
136 |
2.9 |
137 |
5.9
6.6 |
282
318 |
5.9
6.7 |
284
320 |
Downpipe
At Centre:
| |
Gutter
Flow
(Litres/sec) |
Roof
Area M2 |
Gutter
Flow
(Litres/sec) |
Roof
Area M2 |
0.7
1.8 |
34
86 |
0.8
2.6 |
38
125 |
| 3.2 |
154 |
3.8 |
182 |
3.8
4.0 |
182
192 |
4.6
4.9 |
221
235 |
| 4.2 |
202 |
4.7 |
226 |
| 2.4 |
115 |
3.0 |
144 |
| |
|
|
|
| 5.4 |
258 |
6.0 |
289 |
11.1
12.5 |
534
601 |
12.4
14.0 |
598
673 |
Application
Checklist:
To select the Hunter rainwater system suitable
for your application, check the following:
- Rainwater
outlet positions with regard to the
underground drainage system
- Reveals,
recesses, corners etc. to determine
the gutter / outlet combination you
require
- The effective maximum
roof area to be drained, see diagram
- The
distance off gutter angles from the
nearest outlets.
Calculate Effective
Maximum Roof Area:
Effective maximum roof area can be calculated
by using the following formula:
Project
Selector:
Sheds/
Greenhouses |
Conservatories |
Domestic Housing |
Commercial/Light Industrial |
| Yes |
|
|
|
| |
Yes |
Yes |
|
| |
Yes |
Yes |
|
| |
Yes |
Yes |
Yes |
| |
Yes |
Yes |
Yes |
| |
Yes |
Yes |
|
Compatibility
Table:
| |
| (mm) |
110 |
160 |
110 |
32 |
40 |
50 |
32 |
40 |
50 |
112 |
114 |
| Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
No |
| Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
|
