How do you pals estimate size of gutters and downpipes? 2

[IJR]

I came across a publication, but unfortunately it was all about small houses. Gutter sizes were too small for my applications which usually involve drained widths of around 30ft(10 meters).

Considering CONVENTIONAL ROOF DRAINAGE (Not syphonic systems or any other systems), I will appreciate any rules of thumb or any bit of info.

respects
IJR

 

[ishvaaag]

This comes in look up tables or so. Get some book on mechanical design for buildings such

Mechanical and Electrical Equipment for Buildings
8th edition
Benjamin Stein
John S. Reynolds
Wiley 1992

Building Design and Costruction Handook 5th edition
Frederick S. Merrit
Jonathan T. Ricketts
Mc Graw Hill 1994

 

[Ron]

The most commonly used publication in the US for this (outside the mechanical codes) is the SMACNA Manual. SMACNA is the Sheet Metal and Air Conditioning Contractors National Association (

http://www.smacna.org).

 

[Mattman]

Ramsey & Sleeper's Architectural Graphic Standards give comprehensive charts to quickly determine required gutter and drain/downspout sizes for the USA.