Yes — every Utah basement foundation should have full exterior waterproofing, not just damp-proofing. Utah’s annual snowmelt cycle pushes substantial water against foundation walls for weeks each spring. Clay soils hold water against the wall surface long after rainfall or snowmelt events. A complete waterproofing system includes: exterior membrane on the wall face, drainage board, perimeter drain tile in gravel at the footing level, and a daylight outlet or sump pump. The cost of construction is $8,000–$18,000. The cost to excavate and retrofit it after the structure is complete — and after moisture damage has compromised interior finishes — is $30,000–$80,000 for a full basement perimeter. RainFire Builders installs full exterior waterproofing on every Utah basement it builds, regardless of what appears to be the current water table condition at the time of construction.