This calculator serves as an information source only.
Smacna gutter slope.
In response smacna s technical resources department has created a free downspout and gutter sizing calculator.
Now architects engineers designers and contractors can easily and accurately size downspouts and gutters according to.
Expansion allowances gutter specific expansion tables based on girth profile metal predicted annual δt expansion of building materials table with various expansion coefficients must be used for fascia and copings with consideration of both metal and substrate flat seam roof expansion guidance over 30 feet use batten seam design to allow for expansion.
The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website.
Metal era recommends that you verify all data obtained.
Sheet metal and air conditioning contractors national association 4201 lafayette center drive chantilly virginia 20151 1219 tel 703 803 2980 fax 703 803 3732.
The smacna series gutter system is an exceptionally strong gutter product for industrial commercial type buildings.
This calculator uses the equations that are laid out in the smacna handbook.