The basement walls in our newly constructed home are insulated on the outside. We do not plan to finish the basement for a a year or more because we want to watch as everything settles and be able to visually check for cracks. We used a spray-applied water-proofing sealant on the outside of the concrete foundation and Tremco WARM N DRI for exterior insulation and water diversion.

The basement walls and floor were poured in mid-November. Since mid-January we’ve maintained a temp of 60+ and have kept RH in the 30 – 40% range. Based on how seldom the dehumidifier cycles on I’d say the concrete is relatively dry now.

I would like to seal the walls and floor with V-Seal 101, or something comparable in order to prevent the unfinished basement from smelling like concrete. Do I need to be concerned about permeability? Is it okay to seal concrete only 6 months old? Do you have recommendations for a clear, non-toxic product?