Best insulation for 'cool room'

mikedavid00

Hi!

It's common in the beer and wine world to want a coolish fermentation room.

Basically it has to be about 61-64 degrees inside the room (or area). Many use an air conditioner for this and setup these rooms in the basement.

The problem is the insulation. Everyone is doing something different.

Should I be using fiberglass? Styrafoam?

What would keep in cool temps the best?

Scuba_Dave

Where are you located ?
Are you building this in a basement ?

mikedavid00

Yes sir. Not an actual room.. more of a big closet sort of space.