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Short-Term Intensity Multiplication Factors

Short-Term Intensity Multiplication Factors

ApplicationGutter MultiplierDownpipe Multiplier
With OverflowNo Overflow
Valleys3.1n/an/a
Penetrations3.1n/an/a
Internal Gutters Residential3.12.13.1
Internal Gutters Commercial2.21.52.5
External Gutters — no Overflow2.51.72.5
External Gutters — with Overflow111
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