Gutter system
Soffit

Gutter System BRYZA

DETERMINATION OF THE CORRECT GUTTER SIZE

When choosing a gutter system, you should make sure that the gutters and down pipes will receive water from the roof surface of your building. In order to do so, you have to calculate the so called Effective Roof Surface, which the system should drain. When calculating the effective roof surface we make use of the following formula:

ERS = (B+C/2) × roof length (m)

B - horizontal distance from the corner to the roof ridge (m)
C - roof length (m)

Down pipe
settings
SYSTEM 75 SYSTEM 100 SYSTEM 125 SYSTEM 150
75mm gutter
63mm down pipe
100mm gutter
90mm down pipe
125mm gutter
90mm down pipe
150mm gutter
110mm down pipe

in the centre
95 m2 132 m2 180 m2 370 m2

at the end
48 m2 66 m2 90 m2 180 m2

round the corner
42 m2 52 m2 75 m2 145 m2