Potential buyers have three primary reasons for discounting the value of an EIFS-clad house; [1] the delays and costs related to remediation, [2] on going monitoring and, [3] potential resale. If a pre-sale inspection reveals moisture in the walls, it could take a considerable amount of time (usually 3 to 6 months) to first determine what the recommended remediation should be, then locating a contractor, and finally, having the work performed.  Sellers who are subject to sudden job transfers are at a particular disadvantage.

Although flawed, an EIFS system is not hopeless.  Some EIFS-clad homes are almost completely dry and have no internal decay.  In any event, EIFS should be treated with caution. The seller or buyer should approach contractors that have a "tear it all off" mentality with caution since a complete tear off is necessary only about 1% of the time. (Georgia Homebuilders Inspection Association).

This may signal an inspector who is either [1] associated with a construction contractor, [2] fears liability for non-discovered damage, [3] uses panic as a marketing tactic, or [4] may not fully understand EIFS. 

Every EIFS house should be tested. If remediation is performed, the homeowner should conduct periodic follow up exams of the exterior for failing caulk and/or points for water intrusion.  Testing and early repairs will help preserve the home and keep it dry thereby sustaining the market value of the home.