PASSIVE SOLAR HEATING (Direct Gain)

Good morning everyone;

Does anyone know how to calculate/evaluate a passive solar heating startegy and glass selection (UHGC) according to a isolation map on the surfaces?
I am currently working on a Passive Haus project and we need for specs. We have been using ESRA ( but I was wondering if we can use Ladybug with same results:

Thanks in advance,

Ruben Cabanillas Ramos

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