Ductwork fabricated from the Kingspan KoolDuct System proved to be more airtight, with an air leakage rate 80% less than that of the glass fiber insulated sheet metal. This equates to an estimated energy saving of 24 MMBtu per annum – the equivalent of 188 tons of carbon dioxide (CO2) emissions over a 30 year period.
Ductwork fabricated from the Kingspan KoolDuct System also proved to be more cost-effective than the sheet metal equivalent, saving nearly 17% on capital cost. In addition, it is predicted to save 7.5% on operational cost, and, over a 30 year period, an estimated 14% on whole life cost.
The findings show that ductwork fabricated from The Kingspan KoolDuct System:
- Had an air-leakage rate 80% less than that of the ductwork constructed with galvanised sheet steel and insulated with glass fibre duct wrap
- Could save 720 MMBtu / 213,600 kWh and 188 short tons / 170 metric tons of CO2 over 30 years
- Could reduce CO2 emissions by 1.79 lb/sq.ft / 8.74 kg/m2 of building floor area
- Had an installed cost, which was over 16% less expensive than the glass fibre insulated sheet metal (GI Ductwork)
- Over 30 years, could yield a whole life cost saving of over 14%