This works to avoid loss of air and the possibility of contaminants getting drawn and spread into our breathing air
The only reason I’m aware of the importance of ductwork design is because my husband and I built a new home a couple of years ago. We spent quite a bit of time debating between different styles of heating and cooling. When we ultimately settled on a furnace and central air conditioner, the HVAC contractor went into great detail about designing and fabricating the ductwork. I did some research and learned that the duct system directly impacts energy consumption, utility costs, indoor temperature and air quality. The average home requires more than 300 feet of supply and return ductwork. The majority of homeowners are only getting approximately 60% of potential efficiency from their heating and cooling system due to improper duct design and installation. If the maximum amount of conditioned air isn’t getting distributed to the rooms, it’s far more difficult to achieve an even temperature and adequate comfort. My husband and I were fortunate that the HVAC company we hired was proficient in heat load calculation, ductwork design and include sheet metal fabrication capabilities. Because our ductwork promotes optimum airflow to meet the heating and cooling requirements of the house, we are totally comfortable on the coldest winter nights and hottest summer days. All the duct joints are secured mechanically with sheet metal screws and further sealed with mastic paste and foil tape. This works to avoid loss of air and the possibility of contaminants getting drawn and spread into our breathing air. We enjoy superior air quality and peak energy efficiency. The furnace and air conditioner don’t need to run as often or work as hard, which should add up to greater reliability and longevity.