HVAC Duct Construction Standards, Metal and Flexible – SMACNA

$199.99

HVAC Duct Construction Standards – Metal & Flexible is primarily for commercial and institutional projects and contains first time ratings for the TDF and the TDC connectors. Schedules have been standardized on…

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HVAC Duct Construction Standards – Metal & Flexible is primarily for commercial and institutional projects and contains first time ratings for the TDF and the TDC connectors. Schedules have been standardized on “minimum” thickness rather than “nominal” thickness of sheet metal – a major change. The new construction standards contain re-rated rectangular, round, oval and flexible duct constructions for positive or negative pressures up to 10″ water gage (2500 Pa). Widths go to 120″ in gages 26 to 16. Diameters go to 84″ in gages 28 to 16. New performance requirements facilitate equivalent ratings for non-illustrated construction. The data have been reorganized for easy use and reference; includes soft metrics.