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Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence

Hi all,

I'm working with the window equivalent layer model and there is something that I don't really understand regarding the reporting of SHGC and Solar Transmittance at Normal Incidence of the windows. From the output details document, I can see that the Solar Transmittance takes into account the layers of shading, while the SHGC doesn't.

image description

I understand that my construction with curtains (Drape material) - WINDOWEQLAYERCURT - has a different SHGC than Solar Trans. However, I don´t get what is going on with the construction without them - WINDOWEQLAYER - which is only composed of two layers of glazing with Argon Gas inbetween them.

WindowReport

Is the SHGC only related to one of the Glazing layers? Even if that is the case, my glazing specs don´t really specify anything like a SHGC of 0.556. These are the detailed constructions and materials:

image description

image description

Thanks! Rafael

Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence

Hi all,

I'm working with the window equivalent layer model and there is something that I don't really understand regarding the reporting of SHGC and Solar Transmittance at Normal Incidence of the windows. From the output details document, I can see that the Solar Transmittance takes into account the layers of shading, while the SHGC doesn't.

image description

I understand that my construction with curtains (Drape material) - WINDOWEQLAYERCURT - has a different SHGC than Solar Trans. However, I don´t get what is going on with the construction without them - WINDOWEQLAYER - which is only composed of two layers of glazing with Argon Gas inbetween them.

WindowReport

Is the SHGC only related to one of the Glazing layers? Even if that is the case, my glazing specs don´t really specify anything like a SHGC of 0.556. These are the detailed constructions and materials:

image description

image description

Thanks! Rafael

Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence

Hi all,

I'm working with the window equivalent layer model and there is something that I don't really understand regarding the reporting of SHGC and Solar Transmittance at Normal Incidence of the windows. From the output details document, I can see that the Solar Transmittance takes into account the layers of shading, while the SHGC doesn't.

image description

I understand that my construction with curtains (Drape material) - WINDOWEQLAYERCURT - has a different SHGC than Solar Trans. However, I don´t get what is going on with the construction without them - WINDOWEQLAYER - which is only composed of two layers of glazing with Argon Gas inbetween them.

WindowReport

Is the SHGC only related to one of the Glazing layers? Even if that is the case, my glazing specs don´t really specify anything like a SHGC of 0.556. These are the detailed constructions and materials:

image description

image description

Thanks! Rafael

Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence

Hi all,

I'm working with the window equivalent layer model and there is something that I don't really understand regarding the reporting of SHGC and Solar Transmittance at Normal Incidence of the windows. From the output details document, I can see that the Solar Transmittance takes into account the layers of shading, while the SHGC doesn't.

image description

I understand that my construction with curtains (Drape material) - WINDOWEQLAYERCURT - has a different SHGC than Solar Trans. However, I don´t get what is going on with the construction without them - WINDOWEQLAYER - which is only composed of two layers of glazing with Argon Gas inbetween them.

WindowReport

Is the SHGC only related to one of the Glazing layers? Even if that is the case, my glazing specs don´t really specify anything like a SHGC of 0.556. These are the detailed constructions and materials:

image description

image description

Thanks! Rafael

Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence

Hi all,

I'm working with the window equivalent layer model and there is something that I don't really understand regarding the reporting of SHGC and Solar Transmittance at Normal Incidence of the windows. From the output details document, I can see that the Solar Transmittance takes into account the layers of shading, while the SHGC doesn't.

image description

I understand that my construction with curtains (Drape material) - WINDOWEQLAYERCURT - has a different SHGC than Solar Trans. However, I don´t get what is going on with the construction without them - WINDOWEQLAYER - which is only composed of two layers of glazing with Argon Gas inbetween them.

WindowReport

Is the SHGC only related to one of the Glazing layers? Even if that is the case, my glazing specs don´t really specify anything like a SHGC of 0.556. These are the detailed constructions and materials:

image description

image description

Thanks! Rafael