roof drainage
roof drainage
(OP)
I have a 70 sq.ft. roof. Rational Equation provides a flow of 0.75 cfs.
I = 9.6 in/hr, Area = 7700 sq.ft. C= 0.9
I will install 9 vertical pipes on the roof, connect them to 9 horizontal pipes underneath sidewalks.
I am not familiar wiht methodology
I = 9.6 in/hr, Area = 7700 sq.ft. C= 0.9
I will install 9 vertical pipes on the roof, connect them to 9 horizontal pipes underneath sidewalks.
I am not familiar wiht methodology





RE: roof drainage
Mike McCann
McCann Engineering
RE: roof drainage