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Any factor which affect to heat gain from window?

I was doing shoe box study with rectangle plan for 4 floors.
I set same window to wall ratio(40%) and same window setting without any shading and surrounding building which affect to window heat gain.
However when I check the result, higher floor get more heat gain compared to lower floor.
I wonder are there any factor which affect to heat gain from window other than following parameter. Could anyone help?

  • Window Area
  • Window Specification (Solar Heat Gain Coefficient)
  • Shading

Result (Higher floor got more heat gain from window)
image description

Window Input Information
image description

Any factor which affect to heat gain from window?

I was doing shoe box study with rectangle plan for 4 floors.
I set same window to wall ratio(40%) and same window setting without any shading and surrounding building which affect to window heat gain.
However when I check the result, higher floor get more heat gain compared to lower floor.
I wonder are there any factor which affect to heat gain from window other than following parameter. Could anyone help?

  • Window Area
  • Window Specification (Solar Heat Gain Coefficient)
  • Shading

Result (Higher floor got more heat gain from window)
image description

Window Input Information
image description