Full view glass garage doors heatloss – GreenBuildingAdvisor

Has anyone compared whether it’s “worth” trying to get an insulated glass garage door when a fullview glass garage door is desired. 

I wonder what’s an educated guess for heat loss would be for the average 2 car garage (20×30) with a 16×10′ glass garage door – insulated glass vs non insulated glass. When kept at 60F with a minisplit in zone 5 (80301). Assume standard r19 stick framed walls, r10 insulated slab, r60 and living space above. 

I do not ever plan to cool this space though. It never gets that hot even when it’s 100f outside. 

I feel that r value of the glass is pointless when air leaks and the aluminum frame pretty much dictates the heat loss.

Id like to see if it’s better to put the money towards more PV instead of the up cost of insulated glass (+$10k minimum from what I’m seeing)