How important is air leakage in energy efficiency?

How important is air leakage, the L factor in energy efficiency? Is it a bigger factor than the other factors used to determine energy efficiency or about average?

Asked by Jenny on 26th May 2022
Expert Trade Answers
"Air leakage is no doubt one of the most important and damming factor when it comes to energy efficiency..
Can you be more specific about which product you need information.. mostly it’s energy efficient windows doors .."
Answered on 26th May 2022 - Member since May 2020 - report
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