Smacna Gutter Detail

Custom profiles are also available.

Smacna gutter detail.

Located in headquarters outside washington d c the sheet metal and air conditioning contractors national association smacna an international association of union contractors has 1 834 members in 103 chapters throughout the united states canada australia and brazil. The sheet metal and air conditioning contractors national association smacna is now providing a simple and effective downspout gutter sizing calculator. News smacna s downspout and gutter sizing calculator. 15 m is a practical maximum gutter length to be served by a downspout.

Calculations are based on level gutter capacity as experimentally determined by the national institute of standards and technology nist. 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 smacna series gutter system is an exceptionally strong gutter product for industrial commercial type buildings. 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 all styles are supplied in a standard 6 size and are.

Strap hung gutter on sloping roof. 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. Architectural sheet metal manual this completely revised publication contains the most comprehensive set of recommended practices available for proper design and installation of custom fabricated architectural sheet metal including roof drainage system design for scuppers gutters and downspouts.

The continuous copper apron strip is fastened to the gutter with a single lock seam and is nailed to the roof with copper nails 12 o c. This detail illustrates an alternate method of attaching copper gutters on sloped roofs. To limit the effects of thermal expansion in gutters 50 ft. This tool allows engineers architects designers and contractors to easily and accurately size downspout and gutters per smacna s architectural sheet metal manual.

Copper braces of 32 oz. Gutters downspouts the greatest value in gutters and roof drainage with a unique design that improves performance while complementing your roof s aesthetic qualities metal era s line of water drainage products is the only system that s factory mutual approved. 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. One of the most frequently asked architectural questions smacna receives is on sizing gutters and downspouts.