Howard iii sheet metal and air conditioning contractors national association.
Hvac duct construction standards metal and flexible smacna.
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.
1966 3 rd edition 2005 396 pages.
This second edition of the smacna commercial metal and flexible duct construction standards is another in a long line dating from the 1950s.
This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures.
Hvac duct construction standards metal and flexible third edition iii foreword this third edition of the smacna commercial metal and flexible duct construction standards is another in a long line dating from the 1950s.
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 third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction.
This american national standard ansi smacna 006 2006 contains tables and details for constructing ductwork for to 10 wg positive and negative pressures.
This edition improves upon the second edition with expanded pressure class tables.
Smacna hvac duct construction standards metal and flexible third edition 2005.
The third edition of the hvac duct construction standards metal and flexible is intended primarily for commercial and institutional duct construction.
Meanwhile a committee has already begun work on what will be either addenda or a new edition.
The research also led to the development of the smacna hvac air duct leakage test manual 1st edition.
A quick overview of the changes is provided in the front of this manual.
2 hvac duct construction standards metal and flexible 1st edition 1985 hvac duct construction standard metal and flexible 2nd edition 1995 and the current smacna duct construction standard hvac duct construction standards metal and flexible 3rd edition 2005.
Duct size duct gauge joint length wide side connector narrow side connector 0 12 26 59 flat slip t 6 24 ga flat drive t 1 24 ga 13 18 26 59 standing slip t 11 26 ga flat drive t 1 24 ga 19 30 26 56 t d c.
T 25a 31 42 24 56 t d c.
