Share 'Installing an indoor swim spa and what type of insulation to use.'

     I am consulting on an addition to house an indoor swim spa or endless pool.  I am getting all kinds of feedback from the different insulation companies about what type of insulation to use.  I don't want to recommend something that might be prone to rot in the future, however the spa company has no real guidelines in this area.  Their only suggestion is to install a bath fan in the room.  If…