Originally Posted by AMFE
Understood thanks for the insight. I may try in on the garage door before i make it permanent in the boat
As far as moisture barrier and reflective barrier, is it better suited for both to be on the outermost layer of insulation or innermost? My logic is thinking outer for both.
Not sure what you're getting at. Air infiltration is like 99% of the moisture problem in refrigeration
. You don't need to worry about it if the box is airtight.
Reflective barrier? Heat transfer occurs via conduction, convection and radiation. The insulation prevents conduction, air tightness addresses convection and exterior wall of your box handles radiation.
If you're talking about building science that's an entire differently ballgame because it is assumed that an existing structure cannot be readily made to be airtight so insulation needs to be designed to address possible moisture condensation
and vapor barriers are needed.