Smacna Gutter Profiles

Sizing metal sheet thickness.

Smacna gutter profiles.

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. Every gutter system is unique so saf smacna gutter profiles are custom fabricated to suit individual project needs including. Custom profiles are also available. Dmi offers our box gutter in six standard smacna profiles see profiles tab below.

All smacna series gutters are sized by their rear dimensions. In addition to standard smacna profiles custom shapes are also available. Downspout sizes must not exceed the bottom width of the gutter. In response smacna s technical resources department has created a free downspout and gutter sizing calculator.

Calculations are based on level gutter capacity as experimentally determined by the national institute of standards and technology nist. Technical paper 2017 update for architectural fascia and coping wind tests report. Smacna s technical resources committee completed wind uplift testing on custom fabricated fascia and coping architectural elements. 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.