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| 2016-02-11 09:28:22 -0500 | asked a question | F-Factor for slabs with both vertical and horizontal insulation ASHRAE 90.1 Table A6.3 has values for horizontal insulation and vertical insulation, but nothing for slabs that have both vertical and horizontal insulation. What f-factor should I use? I don't consider it to be a 'fully insulated slab' since the horizontal insulation only extends 24" inwards, and A6.1.3 specifices "continuous insulation...completely covers the entire area under the slab." |
