Untrained workers and poor workmanship. Improper sealants, caulking, and flashing at windows, doors, etc. Poor quality windows. Lack of proper maintenance. Systems are flawed.
Excellent workmanship fails to prevent water infiltration and rot.
Some EIFS manufacturers have discontinued non-drainable EIFS products. National Building Code. Evaluation or Research Report Requirements Evaluation or research reports are sets of instructions for code officials and builders for various products not specifically addressed in the codes. Limitations for use. A list of components which require special inspections.