Effect of Reduced Infiltration on Heating/Cooling Load
Thank you in advance for your time and consideration. This community has been invaluable to me with all the help and advice, it is greatly appreciated.
This question is in reference to a new build in climate zone 7A. Our strategy is to go for upgraded insulation via continuous exterior insulation (1 to 2 inches depending on exterior material) using Zip-R and EEIFs over 2×6 construction with r 2o batts (mineral wool if we can find it) and as much air tightness as we can get via construction techniques and Aerobarrier system. Insulation beyond this is not feasible for our design.
I have been trying to find resources on how much of a difference making a new build much more airtight (shooting for less than [email protected]) has on heating and cooling loads.
Right now at [email protected] the manual J calculations show a 17K Btu/hr load for heating. Can i assume that reducing that 3.5 to 1 also reduced that load by a similar factor?
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