Errors in construction/repair work and/or compromised building materials may lead to water intrusion from the exterior (rain). When residents or business owners experience water intrusion and subsequent remediation or repairs to buildings materials, it is often recommended to have the areas of repair tested for water intrusion prior to repair completion. Using elements of the ASTM E1105 and E2128 water testing methods, AMRC consultants employ the Rain Maker Spray Rack, a standard in the industry.