Sealed attic in garage without vents - is this okay?
I recently remodeled my unfinished garage, which created some attic space. However, the part of the attic is actually sealed with drywalls. I guess the contractor decided to block hard to reach attic space for now, but anyway that is the end result.
I just realized that there are no vents in that sealed area and I'm wondering if it is okay. I know the air trapped inside will get hotter during daytime, but so far under the July sunlight, it is not too bad (actually cooler than before without drywalls).
I also read about moisture issue during winter, but will it be an issue for a garage, which won't be heated? Any other potential issues?
Should I be concerned and install vents? Or other than the higher temperature, I should be okay?
BTW, I live in California (8-9 months of dry season then rainy winter) if the weather matters. Thank you.