I have read through previous threads about vapor barriers but I can't quite find the answer I'm looking for.
We are in the process of building a so-called "spiketält" or porch for the caravan this winter. The space is insulated, but the plan is to keep it cold during the weeks and heat it up during the weekends when we are there. I'm not quite sure if I should install a vapor barrier in the walls, ceiling, and floor or not.
The ceiling and floor consist of 145mm insulation, and the walls (from outside to inside) panel, wind protection 70mm + 45mm. (Where do you place the vapor barrier in the wall? Between the studs or directly inside the chipboard?)