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EnergyPlus: changing insulation inputs does not change my simulation outputs?

So I've been changing my insulation values by increasing its thickness as well as lowering its thermal conductivity in the 'Material' section under the Surface Construction Elements list, but no matter what I change the values to, my output numbers are always the same. Am I not accounting for something? Or is it a case where the insulation values aren't actually affecting the results to a noticeable extent? The program runs without any errors, and I have tried changing the values by a magnitude of 100 but to no avail, any help is appreciated!

(The EnergyPlus version I'm using is v9.4.0)

EnergyPlus: changing insulation inputs does not change my simulation outputs?

So I've been changing my insulation values by increasing its thickness as well as lowering its thermal conductivity in the 'Material' section under the Surface Construction Elements list, but no matter what I change the values to, my output numbers are always the same. Am I not accounting for something? Or is it a case where the insulation values aren't actually affecting the results to a noticeable extent? The program runs without any errors, and I have tried changing the values by a magnitude of 100 but to no avail, any help is appreciated!

(The EnergyPlus version I'm using is v9.4.0)