This tool allows engineers architects designers and contractors to easily and accurately size downspout and gutters per smacna s architectural sheet metal manual.
Smacna manual gutters.
Dmi offers a full line of accessories including internal gutter support brackets custom under brackets mitered corners end caps splice plates expansion joints outlets downspouts elbows and downspout straps.
Smacna architectural sheet metal manual 7th edition figure 1 24 gutter accessories screens and outlets.
The association offers contractors professional assistance in labor relations.
Saf smacna gutters are an extension of the saf industrial series gutters but with profile features contained in the sheet metal and air conditioning contractors national association smacna manual.
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.
Custom profiles are also available.
The smacna series gutter system is an exceptionally strong gutter product for industrial commercial type buildings.
Dmi offers our box gutter in six standard smacna profiles see profiles tab below.
Calculator notes and assumptions.
Smacna standards and manuals address all facets of the sheet metal and hvac industry including duct construction and installation indoor air quality energy recovery roofing and architectural sheet metal welding and commissioning.
The sheet metal and air conditioning contractors national association smacna is now providing a simple and effective downspout gutter sizing calculator.
More than 17 000 orders for smacna technical manuals are processed and shipped each year from smacna national headquarters.
Saf smacna gutters are an extension of the saf industrial series gutters but with profile features contained in the sheet metal and air conditioning contractors national association smacna manual.
In response smacna s technical resources department has created a free downspout and gutter sizing calculator.
Calculator is based on chapter 1 of smacna s architectural sheet metal manual 7th edition asmm.
The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website.
News smacna s downspout and gutter sizing calculator.
One of the most frequently asked architectural questions smacna receives is on sizing gutters and downspouts.
In response smacna s technical resources department has created a free downspout and gutter sizing calculator.
Rainfall wizard is based on table 1 2 rainfall data and drainage factors page 1 2 1 3 of the architectural sheet metal manual 7th edition.
