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 ...

Many contractors have a comfort zone when it comes to the type of ductwork they prefer to use. In many cases, this comfort zone can be outlined by various factors, such as product cost, availability, ...

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 ...