Performance of Thermal Insulation on the Exterior of Basement Walls
EPS and EPS-based insulation (such as Halo Subterra) is able to keep water away from a basement’s concrete wall. Of course, this doesn’t mean that other waterproofing methods shouldn’t be in place. But, this finding does mean that EPS insulation can perform both of its design functions — slowing heat transfer and groundwater management — very well.