itsourcasa

18.4 vs 9.0 R-value for garage doors, need input.

itsourcasa
3 days ago

We are getting new insulated garage doors, the two options are 18.4 or 9.0 R-value. 9.0 seems more than enough given we've had 1.0 the last few years (it is a sauna in the garage in the summer) but we are in south FL and garage doors face west. Is 18.4 or anything higher than 9.0 really worth it? Would love some input on this as it's a good price difference.

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