This article originally appeared in the Spiral Duct Manufacturers Association insert in the January 2017 issue of SNIPS magazine. There are several factors that a designer should consider when ...

We have written before that round spiral duct should be your first choice for a rooftop HVAC duct system. The round shape reduces snow accumulation and accelerates rain runoff compared to rectangular ...

GREVIE, Sweden, May 2, 2023 /PRNewswire/ -- Lindab acquires the British company Firmac Ltd, which is the European leader in machines for manufacturing of rectangular ventilation ducts. Through its ...