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  • LEEDv4: ASHRAE90.1-2010 Appendix G. How to calculate infiltration is not clearly described.

  • LEEDv4.1: ASHRAE90.1-2016 Appendix G. How to caululate infiltration is clearry described as shown below.

    image description

    I75Pa is 2.03L/s·m2. (FYI, it is changed to 3.0L/s·m2 in ASHRAE90.1-2019.)

    image description

Normally, I calculate IAGW for both LEEDv4 and LEED v4.1.

  • LEEDv4: ASHRAE90.1-2010 Appendix G. How to calculate infiltration is not clearly described.

  • LEEDv4.1: ASHRAE90.1-2016 Appendix G. How to caululate infiltration is clearry clearly described as shown below.

    image description

    I75Pa is 2.03L/s·m2. (FYI, it is changed to 3.0L/s·m2 in ASHRAE90.1-2019.)

    image description

Normally, I calculate IAGW for both LEEDv4 and LEED v4.1.

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