Insulation and soundproofing
Best practices for basement insulation in new home construction
Basements in Canada & USA face serious challenges: fluctuating water tables, surface floods, thermal shock, radon gas infiltration, condensation, mold, mildew,…
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Basements are more susceptible to moisture and water damage, so you should keep that in mind when choosing insulation for basements, along with how to design a wall so that they can dry in order to prevent mold from developing. Yes, we would propose a continuous layer of rigid insulation against foundation walls to separate the stud wall from the concrete. Our recommendation would be EPS rigid foam, read more here –
Choosing the right Rigid Insulation Panels
And yes, I would say running the Rigid insulation from the bottom of the concrete and up covering the above grade stud wall portion is a good idea. 2 is the thickness Where EPS begins to act as a vapor barrier, so depending on your climate zone and ideal construction method, a building inspector may or may not accept EPS as the functional vapor barrier. If not, you could first apply a 6-mil poly barrier between the EPS and the stud wall. See more about basement construction here –
Best practices for basement construction for new homes and renovations