After applying for permits and inspections for your proposed basement renovation .
Before anything else, check the current state of your walls if there are cracks that can be seen, water marks or seepage, and even moss growth.
A vapor barrier is a sheet made of impermeable material that is used to trap water and moisture at one side to prohibit damage caused by water seepage.
The insulation material is your partner in keeping the cold temperatures out and retaining the warmth indoors. It will provide the right insulation
This part of the renovation project is best done with a professional because it involves electrical plumbing and HVAC utilities.