Smacna standards

Located in headquarters outside Washington, D. ANSI, the American National Standards Institute, has accredited SMACNA as a standards-setting organization. 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. Shop the standards available in the store. How We Help our Members. If the designer does not designate pressure class for duct construction on the contract drawings, the basis of compliance with the SMACNA HVAC Duct Construction Standards is as follows: 2” (5Pa) w. The Sheet Metal and Air Conditioning Contractor’s National Association ( “SMACNA” ) provides its product for informational purposes.

The product contains “Data” which is believed by SMACNA to beaccurate and correct but the data, including all information, ideas and expressions therein, is provided strictly “AS IS”, with all faults. Standards from SMACNA are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. SMACNA National has long been involved in the code setting process to ensure that the SMACNA Standards currently being utilized would be included into the Model Building Codes. The voluntary technical standards and manuals developed by SMACNA Contractors have found worldwide acceptance by the construction community, as well as foreign government agencies.

By conducting Joint Performance Testing as described in Section VII of the SMACNA HVAC Duct Construction Standards , 2nd ed. Ward Angles (E,H and J) permitted a more liberal interpretation of the SMACNA Tables. These tests are shown as follows: SMACNA Table Variation permitted per certified test. Search and Buy SMACNA Handbooks and Manuals. Hard Copies or Multi-User PDFs.

From SMACNA’s standpoint, the Institute’s Shop Standards Verification Program is an excellent educational tool. The Shop Standards Verification Program focuses on contractor interests. On a voluntary basis, a firm can seek to set itself apart, to raise the level of competition and offer the construction buyer a tool to make a more discriminating choice.

The third edition of the HVAC Duct Construction Standards Metal and Flexible is intended primarily for commercial and institutional duct construction. Calculator Notes and Assumptions. Rainfall Wizard is based on Table 1-Rainfall Data and Drainage Factors, Page 1. Architectural Sheet Metal Manual 7th Edition. Downspout Sizes are based on Table 1-Dimensions of Standard Downspouts,.

SMACNA is an international assocition of contractors who specialize in HVACR systems for commercial, residential and industrial applications. Company-Wide Subscriptions Available. The standard contains tables and details for constructing ductwork for ╜ö to 10ö wg positive and negative pressures.

Smacna Standards - as PDF File (.pdf), Text File (.txt) or read online for free. The national Association, SMACNA , produces technical manuals and standards for the industry. SMACNA contractors have the opportunity to become a contributor to the development and revision of these industry standards.

When referring to Table 1-thru Table 1-in the SMACNA HVACDuct Construction Standards, 3rd ed. Use the Ward “H” Angle on Rigidty Class “F”, “G” and “H” Use the Ward “J” Angle on Rigidity Classes above “H” The tables as shown herein are the SMACNA Tables with those interpretations already substi- tuted.