Do we take interior blinds or shades into account when we calculate the Solar Heat Gain Coefficient? The windows that I am using on my project have a SHGC of 0.66 which is really high compared to ASHRAE's 90.1 design guidelines.
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11478 thumbs up
November 4, 2013 - 11:56 am
I don't think interior blinds or shades should affect SHGC. The heat is already in the building by the time the sun hits interior blinds. And they are not permanent building fixtures.