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Very small difference between design alternatives in PAT

Hi there, I ran a PAT for design alternative with variable R-value on wall and roof but the difference in heating and cooling (as well as EUI) is very small.

Is this normal ? I have attached the results.

I would appreciate any insight on to what could this result mean.

Regards, BirajC:\fakepath\PAT alternatives.JPG

Very small difference between design alternatives in PAT

Hi there, I ran a PAT for design alternative with variable R-value on wall and roof but the difference in heating and cooling (as well as EUI) is very small.

Is this normal ? I have attached the results.

I would appreciate any insight on to what could this result mean.

Regards, BirajC:\fakepath\PAT alternatives.JPG