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Gutter Systems
Roof Drainage Calculations
The flow capacity for gutter systems tend to be based on a rainfall rate, the gutter being laid nominally level. It is important to design a valley gutter so it can manage the worst case scenario and does not overflow into the building.
The CRM Gutterflow is a programme dedicated to
calculating flow rates taking into account rainfall in
various parts of the country to calculate the correct
gutter size for the roof design and location.
A major consideration is to allow the water to escape
from the gutter as quickly as possible. In addition to the
number and size of rainwater pipes, weirs, overflows,
and symphonic systems can be introduced to the
gutter system.
If you require assistance with gutters for your building, please give us a call to discuss.