Sizing metal sheet thickness.
Smacna gutter profiles.
In addition to standard smacna profiles custom shapes are also available.
Standard rain gutter profiles styles courtesy smacna box gutters like in style a above have the largest volume for the shape and amount of gutter material used were were finding favor in large commercial public and industrial applications by minimizing cost and maximizing water carrying capacity.
Technical paper 2017 update for architectural fascia and coping wind tests report.
In response smacna s technical resources department has created a free downspout and gutter sizing calculator.
To limit the effects of thermal expansion in gutters 50 ft.
All smacna series gutters are sized by their rear dimensions.
Smacna s technical resources committee completed wind uplift testing on custom fabricated fascia and coping architectural elements.
Calculations are based on level gutter capacity as experimentally determined by the national institute of standards and technology nist.
Downspout sizes must not exceed the bottom width of the gutter.
15 m is a practical maximum gutter length to be served by a downspout.
Custom profiles are also available.
Dmi offers our box gutter in six standard smacna profiles see profiles tab below.